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Page 3 (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Agilent Technologies, Inc. as governed by United States and international copyright laws. Warranty The material contained in this document is subject to change without notice.
Page 4 Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument. Agilent Technologies assumes no liability for the customer’s failure to comply with these requirements.
Page 5 *5281' 7+( ,167580(17 To minimize shock hazard, the instrument chassis and cover must be connected to an electrical protective earth ground. The instrument must be connected to the ac power mains through a grounded power cable, with the ground wire firmly connected to an electrical ground (safety ground) at the power outlet.
Page 6 2WKHU 6DIHW\ ,QIRUPDWLRQ • Adjustments described in this manual are performed with power supplied to the instrument while protective covers are removed. Be aware that energy at many points, if contacted, result in personal injury. • Do not install substitute parts or perform any unauthorized modification to the instrument.
Page 7 To avoid the possibility of injury or death, please note that the Agilent 8156A does not have a floating earth. : $5 1, 1* The Agilent 8156A is not designed for outdoor use. To prevent potential fire or shock hazard, do not expose the instrument to rain or other excessive moisture.
Page 8 &$ 87, 2 1 The CAUTION sign denotes a hazard. It calls attention to an operating procedure, or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the product. Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met.
Page 9 $ERXW 7KLV 0DQXDO 7KH 6WUXFWXUH RI WKLV 0DQXDO This manual is divided into 4 parts: • Chapter 1 tells you how to set up your Attenuator. • Chapters 2 to 6 shows you what you can do with your Attenuator. •...
Page 10 6HUYLFH DQG 6XSSRUW Any adjustment, maintenance, or repair of this product must be performed by qualified personnel. Contact your customer engineer through your local Agilent Technologies Service Center. You can find a list of local service representatives on the Web at: http://www.agilent-tech.com/services/English/index.html...
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Page 12: Table Of Contents
Table of Contents 1 Getting Started 1.1 Using the Attenuator ..........29 Using the Modify Keys ............29 1.2 Making an Attenuation Sweep ......30 Making an Automatic Sweep ..........30 1.3 The Manual Sweep ..........31 1.4 Using your Attenuator as a Variable Back Reflector 1.5 Using the Through-Power Mode ......33 1.6 Selecting the Wavelength Calibration and Its Function 2 Using the Attenuator...
Page 13 Table of Contents 3.2 The Automatic Sweep ..........48 Setting Up an Automatic Sweep ........48 Executing the Automatic Sweep ........50 3.3 The Manual Sweep ..........51 Setting Up a Manual Sweep ..........51 Executing the Manual Sweep ..........53 3.4 Example, an Automatic Attenuation Sweep ..54 4 Using your Attenuator as a Variable Back Re- flector 4.1 Configuring the Hardware ........59...
Page 14 Table of Contents 5.3 Selecting the Through-Power Mode .....70 Deselecting the Through-Power Mode ....... 71 Resetting the Through-Power Mode ........71 5.4 Setting the Display Brightness ......71 Resetting the Display Brightness ........71 5.5 Selecting the Setting used at Power-On ....72 Resetting the Power-On Setting ........
Page 15 Table of Contents 7.3 Returning the Instrument to Local Control ..83 7.4 How the Attenuator Receives and Transmits Messages How the Input Queue Works ..........83 The Output Queue ..............84 The Error Queue ..............84 7.5 Some Notes about Programming and Syntax Diagram Conventions ..............85 Short Form and Long Form ..........85 Command and Query Syntax ..........86...
Page 16 Table of Contents *TST? ................103 *WAI ................. 104 8.4 DISPlay Commands ..........104 :DISPlay:BRIGhtness ............104 :DISPlay:ENABle .............. 105 8.5 INPut Commands ...........106 :INPut:ATTenuation ............106 :INPut:LCMode ..............107 :INPut:OFFSet ..............107 :INPut:OFFSet:DISPlay ............ 108 :INPut:WAVelength ............109 8.6 OUTPut Commands ..........110 :OUTPut:APMode .............
Page 17 Table of Contents :SYSTem:ERRor? ..............122 8.9 User Calibration Commands .........123 Entering the User Calibration Data ........123 9 Programming Examples 9.1 Example 1 - Checking Communication ....131 9.2 Example 2 - Status Registers and Queues ....132 9.3 Example 3 - Measuring and Including the Insertion Loss .................135 9.4 Example 4 - Running an Attenuation Sweep ..139 A Installation...
Page 18 A.8 GPIB Interface ............150 Connector ................151 GPIB Logic Levels ............152 A.9 Claims and Repackaging ........152 Return Shipments to Agilent Technologies ......152 B Accessories B.1 Instrument and Options ........157 B.2 GPIB Cables and Adapters ........157 B.3 Connector Interfaces and Other Accessories ..158 Straight Contact Connector ..........
Page 19 Table of Contents D Performance Tests D.1 Equipment Required ..........175 D.2 Test Record .............177 D.3 Test Failure .............177 D.4 Instrument Specification ........177 D.5 Performance Test ...........178 I. Total Insertion Loss Test ..........179 II. Linearity/Attenuation Accuracy Test ......182 III. Attenuation Repeatability Test ........184 IV.
Page 20 Table of Contents E.5 Cleaning Instrument Housings ......257 E.6 Which Cleaning Procedure should I use ? ...257 Light dirt ................257 Heavy dirt ................257 E.7 How to clean connectors ........258 Preferred Procedure ............258 Procedure for Stubborn Dirt ..........258 An Alternative Procedure ...........
Page 21 Table of Contents E.15 How to clean instruments with a recessed lens inter- face ..................265 Preferred Procedure .............266 Procedure for Stubborn Dirt ..........266 E.16 How to clean optical devices which are sensitive to me- chanical stress and pressure .........267 Preferred Procedure .............267 Procedure for Stubborn Dirt ..........267 Alternative Procedure ............267 E.17 How to clean metal filters or attenuator gratings 268...
Page 22 Table of Contents F.2 GPIB Messages ............276 Command Errors ..............276 Execution Errors ..............280 Device-Specific Errors ............281 Query Errors ............... 282 Instrument Specific Errors ..........283 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 23 Table of Contents Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 24 List of Figures Figure 1-1 The Attenuator Keys ................29 Figure 1-2 The Modify Keys ..................30 Figure 1-3 The Parameters for an Automatic Sweep ..........31 Figure 1-4 The Hardware Configuration for the Back Reflector (Options 201 and 203) 32 Figure 2-1 The Hardware Configuration for the Attenuator ........
Page 25 List of Figures Figure B-2 Angled Contact Connector Configuration ..........160 Figure D-1 Total Insertion Loss Test Setup 1, Options 100, 101, 121 ...... 179 Figure D-2 Total Insertion Loss Test Setup 1, Options 201, 221 ......180 Figure D-3 Total Insertion Loss Test Setup 1, Option 350 ........180 Figure D-4 Total Insertion Loss Test Setup 2, Options 100, 101, 121 ......
Page 26 Table C-2 Monitor Output Options ................168 Table C-3 Multimode Options ................... 169 Table D-1 Equipment Required for the Agilent 8156A (1310/1550nm) ....176 Table D-2 Equipment for the PDL test 1 ..............191 Table D-3 Performance Test Agilent 8156A ............. 200...
Page 27 List of Tables Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 28 Getting Started Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 29: Getting Started
8156A. More detail is given on these features in the following chapters. The main features of the Agilent 8156A, other than its use as an attenuator, are its built-in sweep and back reflector applications, its through-power mode (which displays the power at the output of the instrument, rather than the amount of attenuation set) and its selection of wavelength calibration possibilities.
Page 30: Using The Attenuator
Getting Started Using the Attenuator 1.1 Using the Attenuator NO T E Before using the instrument, you should make sure that it is properly warmed up. The instrument is properly warmed up when it has been switched on for a minimum of 45 minutes. Failure to do this can cause errors of up to 0.04dB in the attenuation.
Page 31: Making An Attenuation Sweep
Getting Started Making an Attenuation Sweep Figure 1-2 The Modify Keys Editing a Number Use ⇐ and ⇒ to move the cursor from digit to digit when editing a number. Use ⇑ and ⇓ to change the value of a digit when editing a number.
Page 32: The Manual Sweep
Getting Started The Manual Sweep can edit the parameters for the sweep. START is the attenuation factor at which the sweep begins, STOP is the attenuation factor that ends the sweep, STEP is the size of the attenuation factor change, and DWELL is the time taken for each attenuation factor. Figure 1-3 The Parameters for an Automatic Sweep If you have set up your sweep, then you press E...
Page 33: Using Your Attenuator As A Variable Back Reflector
Getting Started Using your Attenuator as a Variable Back Reflector 1.4 Using your Attenuator as a Variable Back Reflector NO T E Before using the instrument, you should make sure that it is properly warmed up. The instrument is properly warmed up when it has been switched on for a minimum of 45 minutes.
Page 34: Using The Through-Power Mode
Getting Started Using the Through-Power Mode 1.5 Using the Through-Power Mode NO T E Before using the instrument, you should make sure that it is properly warmed up. The instrument is properly warmed up when it has been switched on for a minimum of 45 minutes. Failure to do this can cause errors of up to 0.04dB in the attenuation.
Page 35 Getting Started Selecting the Wavelength Calibration and Its Function • to reposition the filter so that the attenuation stays constant, or • to change the attenuation factor on the display to show the wavelength dependence. You use this to set the wavelength for an unknown source (you alter the wavelength until the displayed attenuation matches the measured attenuation).
Page 36: Using The Attenuator
Using the Attenuator Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 37 Using the Attenuator This chapter describes the use of the Agilent Technologies 8156A as an attenuator. There is an example given at the end of this chapter. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 38: Setting Up The Hardware
Using the Attenuator Setting Up the Hardware 2.1 Setting Up the Hardware To use the attenuator, you need to set up the hardware as shown in the figure below. Figure 2-1 The Hardware Configuration for the Attenuator NO T E Before using the instrument, you should make sure that it is properly warmed up.
Page 39: Setting Up The Attenuation
Using the Attenuator Setting Up the Attenuation 2.2 Setting Up the Attenuation The attenuation can be set in two different ways. This section describes how to set the attenuation by specifying the attenuation factor and an offset (called a calibration factor). “Selecting the Through-Power Mode”...
Page 40: Entering A Calibration Factor
Using the Attenuator Setting Up the Attenuation Resetting the Attenuation Factor To reset the attenuation factor, press and hold A until the value resets (this takes approximately two seconds). The attenuation factor resets so that the filter attenuation is zero, that is Att(dB) = Cal(dB) Entering a Calibration Factor The calibration factor is shown at the bottom left of the display...
Page 41: Entering The Wavelength
Using the Attenuator Setting Up the Attenuation 1. press C , and 2. edit the factor using the Modify keys (see “Using the Modify Keys” on page 29). Resetting the Calibration Factor To reset the calibration factor, press and hold C until the value resets to zero (this takes approximately two seconds).
Page 42: Figure 2-4 The Wavelength On The Display
Using the Attenuator Setting Up the Attenuation unknown source (you alter the wavelength until the displayed attenuation matches the measured attenuation). There are two sets of wavelength calibration data, one made in the factory, individually, for your instrument. The user defines the other. For more details on these topics, see “Selecting the Wavelength Calibration and Its Function”...
Page 43: Example, Setting The Calibration
Using the Attenuator Example, Setting the Calibration 2.3 Example, Setting the Calibration This example uses the Agilent 8156A Attenuator, with a HP 8153A multimeter with one source and one sensor. The connectors for this system are all HMS-10. We set up the hardware, and measure the insertion loss of the system and use this value to set a calibration factor.
Page 44: Figure 2-6 Hardware Configuration For Attenuation Example - B
Using the Attenuator Example, Setting the Calibration NO T E Under normal circumstances you should leave the instruments to warmup. (The multimeter needs around 20 minutes to warmup. The attenuator needs around 45 minutes with the shutter open to warmup.) Warming up is necessary for accuracy of the sensor, and the output power of the source.
Page 45 Using the Attenuator Example, Setting the Calibration c. Set the wavelength on the attenuator to that of the source: i. Press λ . ii. Use the modify keys to edit the value for the wavelength. d. Reset the calibration factor, by pressing and holding C for two seconds.
Page 46: Making An Attenuation Sweep
Making an Attenuation Sweep Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 47 Making an Attenuation Sweep This chapter describes how to make an attenuation sweep with the Agilent Technologies 8156A Attenuator. An example is given at the end of the chapter. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 48: Configuring The Hardware
Making an Attenuation Sweep Configuring the Hardware 3.1 Configuring the Hardware To use the attenuator for a sweep, you need to set up the hardware as shown in the figure below. (This is the configuration as given for simple attenuation in chapter 2). Figure 3-1 The Hardware Configuration for the Attenuator NO T E...
Page 49: The Automatic Sweep
Making an Attenuation Sweep The Automatic Sweep 3.2 The Automatic Sweep An automatic sweep is one where stepping from one attenuation factor to the next is done by the instrument. Setting Up an Automatic Sweep There are four parameters for the automatic sweep •...
Page 50: Figure 3-2 The Parameters For An Automatic Sweep
Making an Attenuation Sweep The Automatic Sweep Figure 3-2 The Parameters for an Automatic Sweep Starting the Setting Up To select the automatic sweep 1. Press S 2. If it is not already set, use ⇑ or ⇓ to set SWEEP to AUTO. Figure 3-3 Selecting the Automatic Sweep Application Editing the Parameters...
Page 51: Executing The Automatic Sweep
Making an Attenuation Sweep The Automatic Sweep 6. Edit the value of STOP with the Modify keys. 7. Press S again to get STEP. 8. Edit the value of STEP with the Modify keys. 9. Press S again to get DWELL. 10.
Page 52: The Manual Sweep
Making an Attenuation Sweep The Manual Sweep Figure 3-4 Running the Automatic Sweep If there is something wrong with a parameter (if STEP is zero, for example), this parameter is shown on the display for editing. Edit the parameter, and press E again.
Page 53: Figure 3-5 Editing The Stop Parameter
Making an Attenuation Sweep The Manual Sweep • STEP is the size of the attenuation factor change. This value is always positive, even for a sweep of decreasing attenuation factor. STEP cannot be set to a value greater than the difference between START and STOP.
Page 54: Executing The Manual Sweep
Making an Attenuation Sweep The Manual Sweep Resetting the Parameters To reset any of the sweep parameters, press and hold S until the value resets (this takes approximately two seconds). START and STOP reset so that the filter attenuation (inside the instrument) is zero, that is Start = Cal Stop = Cal...
Page 55: Example, An Automatic Attenuation Sweep
To go to the previous attenuation factor in the sweep, press ⇓ or ⇐ . 3.4 Example, an Automatic Attenuation Sweep This example uses the Agilent 8156A Attenuator on its own. We set up the instrument to sweep from 5dB to 0dB with an interval of 0.5dB, dwelling for a second at each attenuation factor.
Page 56 Making an Attenuation Sweep Example, an Automatic Attenuation Sweep c. Use the Modify keys to set STEP to 0.500dB. 5. Set the dwell time. a. Press S b. Use the Modify keys to set DWELL to 1.00s. 6. Execute the sweep a.
Page 57 Making an Attenuation Sweep Example, an Automatic Attenuation Sweep Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 58 Using your Attenuator as a Variable Back Reflector Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 59: Using Your Attenuator As A Variable Back Reflector
Using your Attenuator as a Variable Back Reflector This chapter describes how you can use your attenuator as a variable back reflector. An example using the back reflector kit (option 203 with option 201) is given at the end of the chapter. Artisan Technology Group - Quality Instrumentation ...
Page 60: Configuring The Hardware
Using your Attenuator as a Variable Back Reflector Configuring the Hardware 4.1 Configuring the Hardware To use the attenuator as a back reflector, you need to set up the hardware as shown in the figure below. NOTE If this your first time to use the attenuator as a back reflector, you first need to make some measurements.
Page 61: Setting Up The Software
Using your Attenuator as a Variable Back Reflector Setting Up the Software 4.2 Setting Up the Software There are four factors that influence the back reflection of the attenuator. These are 1. the insertion loss of the attenuator (INS LOSS), 2.
Page 62: Executing The Back Reflector Application
Using your Attenuator as a Variable Back Reflector Setting Up the Software To start setting up the Back Reflector application 1. Press B After pressing this the first parameter (INS LOSS) is ready to for editing. 2. Edit the value insertion loss with the Modify keys. 3.
Page 63: Example, Setting A Return Loss
You can edit the value of the return loss with the Modify keys. 4.3 Example, Setting a Return Loss This example uses the Ahilent Technologies 8156A Attenuator with options 201, and 203. Assuming an insertion loss of 2.00dB and a return loss of 60.000dB for the instrument we set up the instrument to have a return loss of 20dB.
Page 64: Figure 4-4 Hardware Configuration For Variable Return Loss
Using your Attenuator as a Variable Back Reflector Example, Setting a Return Loss 1. Configure the hardware as shown in the figure below: Figure 4-4 Hardware Configuration for Variable Return Loss a. Connect the instrument to the electric supply. b. Switch on the instrument. 2.
Page 65 Using your Attenuator as a Variable Back Reflector Example, Setting a Return Loss Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 66 Setting Up the System Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 67: Setting Up The System
Setting Up the System This chapter describes how to set the various system parameters for your attenuator. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 68: Setting The Gpib Address
Setting Up the System Setting the GPIB Address 5.1 Setting the GPIB Address To set the GPIB address of the attenuator 1. Press S 2. Edit the value for ADDRESS using the Modify keys. Resetting the GPIB Address To reset ADDRESS, press and hold S until the value resets (this takes approximately two seconds).
Page 69: Setting The Function Of The Wavelength Calibration
Setting Up the System Selecting the Wavelength Calibration and Its Function Setting the Function of the Wavelength Calibration This compensation can be used • to reposition the filter so that the attenuation stays constant, or • to change the attenuation factor on the display to show the wavelength dependence.
Page 70: Selecting The Wavelength Calibration Data
Setting Up the System Selecting the Wavelength Calibration and Its Function Selecting the Wavelength Calibration Data You enter the user wavelength calibration data over the GPIB (see “User Calibration Commands” on page 123). Using your own wavelength calibration data, you can use the attenuator to compensate for the total wavelength dependence of your hardware configuration.
Page 71: Selecting The Through-Power Mode
Setting Up the System Selecting the Through-Power Mode 5.3 Selecting the Through-Power Mode In the through-power mode, the instrument shows the power that gets through the attenuator on the display (that is the power at the output) rather than the attenuation. When you select the through-power mode the attenuation factor (in dB) becomes the value for the through-power (in dBm).
Page 72: Deselecting The Through-Power Mode
Setting Up the System Setting the Display Brightness Deselecting the Through-Power Mode When you switch the through-power mode off, the last set calibration factor becomes active, and the attenuation factor is set so that the filter attenuation does not change. 1.
Page 73: Selecting The Setting Used At Power-On
Setting Up the System Selecting the Setting used at Power-On 5.5 Selecting the Setting used at Power-On This parameter selects the instrument setting that is used at power- 1. Press S repeatedly until P ON SET is shown at the bottom of the display.
Page 74: Resetting The Enb /Dis Lock Out
Setting Up the System Selecting the Shutter State at Power On LOCKOUT means that the shutter cannot be enabled or disabled (Local Lock Out) while the instrument is being operated over the GPIB. Resetting the Lock Out To reset SHUTTER, press and hold S until the value resets (this takes approximately two seconds).
Page 75: Setting The Display Resolution
Setting Up the System Setting the Display Resolution 5.8 Setting the Display Resolution This parameter sets the resolution of the attenuation factor and the calibration factor on the screen. 1. Press S repeatedly until RESOLUT is shown at the bottom of the display.
Page 76 Storing and Recalling Settings Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 77: Storing And Recalling Settings
Storing and Recalling Settings This chapter describes how to store instrument settings to memory, and how to recall them. A setting consists of the wavelength, calibration and attenuation factors, all the application parameters, and the system parameters with the exceptions of the display resolution, the power on setting, and the GPIB address and command set.
Page 78: Storing The Setting
Storing and Recalling Settings Storing the Setting 6.1 Storing the Setting To store the current instrument setting 1. Press S TORE 2. Select the location where you want to store the setting, using the ⇑ or the ⇓ . 3. Press E 6.2 Recalling a Setting Resetting the Instrument To reset the instrument, you should recall the default setting...
Page 79 Storing and Recalling Settings Recalling a Setting 1. Press R ECALL 2. Select the location from which you want to recall the setting, using the ⇑ or the ⇓ . 3. Press E Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 80 Programming the Attenuator Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 81: Programming The Attenuator
Programming the Attenuator This chapter gives general information on how to control the attenuator remotely. Descriptions for the actual commands for the attenuator are given in the following chapters. The information in these chapters is specific to the attenuator, and assumes that you are already familiar with programming the GPIB.
Page 82: Gpib Interface
Programming the Attenuator GPIB Interface 7.1 GPIB Interface The interface used by the attenuator is the GPIB (General Purpose Interface Bus). This is the interface used for communication between a controller and an external device, such as the attenuator. The GPIB conforms to IEEE standard 488-1978, ANSII standard MC 1.1 and IEC recommendation 625-1.
Page 83: Table 7-1 Gpib Capabilities
GPIB Interface • The SCPI Consortium. Standard Commands for Programmable Instruments. Published periodically by various publishers. To obtain a copy of this manual, contact your Agilent Technologies representative. The attenuator interfaces to the GPIB as defined by the IEEE Standards 488.1 and 488.2. The table shows the interface functional subset that the attenuator implements.
Page 84: Setting The Gpib Address
Programming the Attenuator Setting the GPIB Address 7.2 Setting the GPIB Address You can only set the GPIB address from the front panel. See “Setting the GPIB Address” on page 67. The default GPIB address is 28. 7.3 Returning the Instrument to Local Control If the instrument has been operated in remote the only keys you can use are Locala and E .
Page 85: The Output Queue
Programming the Attenuator How the Attenuator Receives and Transmits Messages b. Clears Bit 7 (MSB). 2. No modification is made inside strings or binary blocks. Outside strings and binary blocks, the following modifications are made: a. Lower-case characters are converted to upper-case. b.
Page 86: Some Notes About Programming And Syntax Diagram Conventions
Programming the Attenuator Some Notes about Programming and Syntax Diagram Conventions If more than 29 errors are put into the queue, the message ’-350 <Queue Overflow>’ is placed as the last message in the queue. 7.5 Some Notes about Programming and Syntax Diagram Conventions A program message is a message containing commands or queries that you send to the attenuator.
Page 87: Command And Query Syntax
Programming the Attenuator Some Notes about Programming and Syntax Diagram Conventions The first colon can be left out for the first command or query in your message. That is, the example given above could also be sent as INP:WAV 1313. Command and Query Syntax All characters not between angled brackets must be sent exactly as shown.
Page 88 Remote Commands Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 89: Remote Commands
Remote Commands This chapter gives a list of the remote commands, for use with the GPIB. In the remote command descriptions the parts given in upper-case characters must be given. The parts in lower-case characters can also be given, but they are optional. Artisan Technology Group - Quality Instrumentation ...
Page 90: Units
Remote Commands Units 8.1 Units The units and all the allowed mnemonics are given in the table below. Table 8-1 Units and Allowed Mnemonics Unit Default Allowed Mnemonics deciBel deciBel/1mW DBM DBMW meter PM, NM, UM, MM, M Where units are specified with a command, only the Default is shown, by the full range of mnemonics can be used.
Page 91: Table 8-3 Command List
Remote Commands Command Summary Parameter/ Command Response Function <value> Operation Complete Query *OPC? *OPT? <string> Options Query <location> Recall Instrument Setting *RCL Reset Command *RST <location> Save Instrument Setting *SAV *SRE <value> Service Request Enable Command <value> Service Request Enable Query *SRE? <value>...
Page 92 Remote Commands Command Summary Parameter Command Response Unit Default :LCMode OFF|ON|0|1 :LCMode? :INPut <value>|MIN|DE -99.999dB 99.999dB 0.000dB :OFFSet F|MAX :DISPlay <value> :OFFSet? <value> :OFFSet? MIN <value> :OFFSet? DEF <value> :OFFSet? MAX :INPut :WAVelength <value>|MIN|DE 1200nm 1650nm 1310nm F|MAX <value> :WAVelength? :WAVelength? MIN <value>...
Page 93 Remote Commands Command Summary Parameter Command Response Unit Default [:STATe] OFF|ON|0|1 [:STATe?] :APOWeron DIS|LAST|0|1 :APOWeron? :STATus :OPERation [:EVENt]? <value> <value> :CONDition? <value> :ENABle <value> :ENABle? <value> :NTRansition :NTRansition? <value> <value> :PTRansition <value> :PTRansition? :QUEStionable [:EVENt]? <value> <value> :CONDition? <value> :ENABle <value>...
Page 94: The Common Commands
Remote Commands The Common Commands Parameter Command Response Unit Default <start_value>,<step_value>, :STARt? <no_of_steps> :STATe OFF|ON|0|1 :STATe? :STOP <value> -99.999dB 99.999dB :VALue <value> :VALue? † These are specified minimum and maximum values, with the calibration factor (:INPut:OFFSet) set to zero. Actual values depend on the instrument, and the calibration factor.
Page 95: Figure 8-1 Common Status Registers
Remote Commands The Common Commands The following figure shows how the registers are organized. Figure 8-1 Common Status Registers The questionable and operation status trees are described in “STATus Commands” on page 114. NO T E Unused bits in any of the registers return 0 when you read them. SRQ, The Service Request A service request (SRQ) occurs when a bit in the Status Byte register goes from 0 →...
Page 96: Cls
Remote Commands The Common Commands poll. The RQS bit is not affected by the condition that caused the SRQ. The serial poll command transfers the value of the Status Byte register to a variable. *CLS Syntax *CLS Definition The *CLS command clears the following: •...
Page 97: Esr
Remote Commands The Common Commands • By sending a value of zero The register is not changed by the *RST and *CLS commands. Table 8-4 The Event Status Enable Register MNEMONIC BIT VALUE Power On User Request Command Error Execution Error Device dependent Error Query Error Request Control...
Page 98: Idn
Remote Commands The Common Commands Table 8-5 The Standard Event Status Register BITS MNEMONICS BIT VALUE Power On User Request Command Error Execution Error Device Dependent Error Query Error Request Control Operation Control Example OUTPUT 728;"*ESR?" ENTER 728; A$ *IDN? Syntax *IDN? Definition...
Page 99: Opc
Remote Commands The Common Commands *OPC Syntax *OPC Definition The instrument parses and executes all program message units in the input queue and sets the operation complete bit in the standard event status register (ESR). This command can be used to avoid filling the input queue before the previous commands have finished executing.
Page 100: Rcl
Remote Commands The Common Commands (High performance, high return loss version), the string returned is High Performance, High Return Loss. Example OUTPUT 728;"*OPT?" ENTER 728;A$ *RCL Syntax *RCL <wsp> <location> 0 ≤ location ≤ 9 Definition An instrument setting from the internal RAM is made the actual instrument setting (this does not include GPIB address or parser, the attenuation resolution or the power on setting).
Page 101: Sav
Remote Commands The Common Commands • Service request enable register (SRE) • Standard event status enable register (ESE) The commands and parameters of the reset state are listed in the following table. Table 8-6 Reset State (Default Setting) Parameter Reset Value Attenuation Factor Calibration Factor Wavelength...
Page 102: Sre
Remote Commands The Common Commands Definition The instrument setting is stored in RAM. You can store settings in locations 1-9. The scope of the saved setting is identical with the scope of the standard setting described in “*RST” on page 99. Example OUTPUT 728;"*SAV 3"...
Page 103: Stb
Remote Commands The Common Commands NO T E Bit 6 cannot be masked. *SRE? The service request enable query returns the contents of the service request enable register. Example OUTPUT 728;"*SRE 48" OUTPUT 728;"*SRE?" ENTER 728; A$ *STB? Syntax *STB? Definition The read status byte query returns the contents of the status byte register.
Page 104: Tst
Remote Commands The Common Commands *TST? Syntax *TST? Definition The self-test query commands the instrument to perform a self-test and place the results of the test in the output queue. Returned value: 0 ≤ value ≤ 65535. This value is the sum of the results for the individual tests Table 8-9 The Self Test Results BITS...
Page 105: Wai
Remote Commands DISPlay Commands The self-test does not require operator interaction beyond sending the *TST? query. Example OUTPUT 728;"*TST?" ENTER 728; A$ *WAI Syntax *WAI Definition The wait-to-continue command prevents the instrument from executing any further commands, all pending operations are completed.
Page 106: Display:enable
Remote Commands DISPlay Commands Description The query returns the brightness of the display, where 0 means least brightness, and 1 means full brightness. Example OUTPUT 728;":DISP:BRIG 0.5" OUTPUT 728;":DISP:BRIG?" ENTER 728;A$ :DISPlay:ENABle Syntax :DISPlay:ENABle <wsp> OFF|ON|0|1 Description This command enables or disables the front panel display.
Page 107: Input Commands
Remote Commands INPut Commands 8.5 INPut Commands :INPut:ATTenuation Syntax :INPut:ATTenuation <wsp> <value>[DB]|MIN|DEF|MAX Description This command sets the attenuation factor for the instrument. The attenuation factor is used, with the calibration factor (see ) to set the filter attenuation. Attenuation (dB) = Att(dB) - Cal(dB) filter You set the attenuation factor by sending a value (default units are dB), or by sending...
Page 108: Input:lcmode
Remote Commands INPut Commands OUTPUT 728;":INP:ATT?" ENTER 728;A$ :INPut:LCMode Syntax :INPut:LCMode <wsp> OFF|ON|0|1 Description This command sets the function of the wavelength calibration. That is, whether the wavelength calibration data is to be used to reposition the filter to keep the attenuation factor constant, or to alter the attenuation factor with the filter kept in a fixed position.
Page 109: Input:offset:display
Remote Commands INPut Commands Description This command sets the calibration factor for the instrument. This factor does not affect the filter attenuation. It is used to offset the values for the attenuation factor. The calibration factor is used, with the attenuation factor (see “:INPut:ATTenuation”...
Page 110: Input:wavelength
Remote Commands INPut Commands Description This command sets the calibration factor for the instrument from the current attenuation factor. The filter attenuation is not affected. The offset is set so that the attenuation factor becomes zero. (dB) = -Att (dB) = Cal (dB) - Att (dB) filter...
Page 111: Output Commands
Remote Commands OUTPut Commands The minimum value for the wavelength is 1200nm. The default value is 1310nm. The maximum value is 1650nm. :INPut:WAVelength? Syntax :INPut:WAVelength? [<wsp> MIN|DEF|MAX] Description The query returns the current wavelength, in meters. By sending MIN, DEF, or MAX with the query the minimum, default or maximum value possible for the wavelength is returned.
Page 112 Remote Commands OUTPut Commands calibration factor (see ) to set the attenuation factor to the required value for use as the base value for the through-power = (Through - Power - Att) + Cal Base Current When you switch the absolute power mode OFF, the last set calibration factor becomes active, and the attenuation factor is set so that the filter attenuation does not change.
Page 113: Output:power
Remote Commands OUTPut Commands Example OUTPUT 728;":INP:ATT?" ENTER 728; Att OUTPUT 728;":INP:OFFS?" ENTER 728; Cal Newcal = Basepow - Att + Cal OUTPUT 728;":INP:OFFS ";Newcal OUTPUT 728;":OUTP:APM ON" OUTPUT 728;":OUTP:APM?" ENTER 728;A$ :OUTPut:POWer Syntax :OUTPut:POWer <wsp> <value>[DBM]|MIN|DEF|MAX Description This command sets the through-power for the instrument.
Page 114: Output:[:State]
Remote Commands OUTPut Commands :OUTPut:POWer? Syntax :OUTPut:POWer? [<wsp> MIN|DEF|MAX] Description The query returns the current through-power, in dBm. ThroughPower(dBm) = ThroughPower (dBm) + Att (dB) - Att (dB) Base filter@Base filter By sending MIN, DEF, or MAX with the query the minimum, default or maximum value possible for the through-power is returned.
Page 115: Output:[:State]:Apoweron
Remote Commands STATus Commands :OUTPut:[:STATe]:APOWeron Syntax :OUTPut[:STATe]:APOWeron <wsp> DIS|LAST|0|1 Description This command sets the state of the output shutter at power on, that is, whether it is closed, or takes the state at power-off. DIS or 0 closes the shutter at power on, and no power gets through.
Page 116 Remote Commands STATus Commands • A condition register (CONDition), which contains the current status.This register is updated continuously. It is not changed by having its contents read. • The event register (EVENt), which contains the output from the transition registers. The contents of this register are cleared when it is read.
Page 117: Status:operation:condition
Remote Commands STATus Commands Figure 8-2 The Status Registers :STATus:OPERation:CONDition? Syntax :STATus:OPERation:CONDition? Description This query reads the contents of the OPERation:CONDition register. Only three bits of the condition register are used: • Bit 1, which is 1 when the motor that positions the attenuator filter is settling.
Page 118: Status:operation:enable
Remote Commands STATus Commands • Bit 7, which is 1 after the instrument has repositioned the attenuator filter due to a change in temperature. Example OUTPUT 728;":STAT:OPER:COND?" ENTER 728;A$ :STATus:OPERation:ENABle Syntax :STATus:OPERation:ENABle <wsp> <value> Description This command sets the bits in the ENABle register that enable the contents of the EVENt register to affect the Status Byte (STB).
Page 119: Status:operation:ntransition
Remote Commands STATus Commands • Bit 1, which is 1 when the motor that positions the attenuator filter is settling. • Bit 3, which is 1 while the instrument is performing an attenuation sweep. • Bit 7, which is 1 after the instrument has repositioned the attenuator filter due to a change in temperature.
Page 120: Status:questionable:condition
Remote Commands STATus Commands Description This command sets the bits in the PTRansition register. Setting a bit in this register enables a positive transition (0 → 1) in the corresponding bit in the CONDition register to set the bit in the EVENt register.
Page 121: Status:questionable[:Event]
Remote Commands STATus Commands a bit in this register to 1 enables the corresponding bit in the EVENt register to affect bit 3 of the Status Byte. :STATus:QUEStionable:ENABle? Syntax :STATus:QUEStionable:ENABle? Description This query returns the current contents of the QUEStionable:ENABle register. Example OUTPUT 728;":STAT:QUES:ENAB 256"...
Page 122: Status:questionable:ptransition
Remote Commands STATus Commands Description This command sets the bits in the NTRansition register. Setting a bit in this register enables a negative transition (1 → 0) in the corresponding bit in the CONDition register to set the bit in the EVENt register.
Page 123: Status:preset
Remote Commands SYSTem Commands OUTPUT 728;":STAT:QUES:PTR?" ENTER 728;A$ :STATus:PRESet Syntax :STATus:PRESet Description This command presets all the enable registers and transition filters for both the OPERation and QUEStionable nodes. • All the bits in the ENABle registers are set to •...
Page 124: User Calibration Commands
Remote Commands User Calibration Commands Example OUTPUT 728;":SYST:ERR?" ENTER 728;A$ 8.9 User Calibration Commands Entering user calibration data can only be done over the GPIB. This is done using the commands described here. Entering the User Calibration Data To enter the data for the user calibration data, you will need a power meter, a tunable laser source and the attenuator.
Page 125 Remote Commands User Calibration Commands This is done with the :UCALibration:STARt command 10. λ = λ Start 11. Repeat the following steps until λ > λ Stop a. Set λ on the tunable laser source, the attenuator and the power meter. b.
Page 126 Remote Commands User Calibration Commands The error -221 indicates that there is a conflict inherent in the start parameters for the user calibration. That is, the start_value and/or step_value is invalid. The error 201 indicates that the user calibration is currently on, and calibration data cannot be changed.
Page 127 Remote Commands User Calibration Commands Switch the state off (using OFF or 0) to use the factory-made calibration. Switch the state on (using ON or 1) to use the user calibration data. NO T E If you are using the instrument in an environment where the temperature changes, you should not use the user wavelength calibration data, as it lacks correction for temperature changes.
Page 128 Remote Commands User Calibration Commands The value that you send with this command, is the attenuation for the next calibration point. The wavelength of the calibration point is updated automatically. The first piece of data is for the start wavelength specified by the :UCAL:START command.
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Page 131: Programming Examples
Programming Examples This chapter gives some programming examples. The language used for the programming is BASIC 5.1 Language System used on HP 9000 Series 200/300 computers. These programming examples do not cover the full command set for the instrument. They are intended only as an introduction to the method of programming the instrument.
Page 132: Example 1 - Checking Communication
9.1 Example 1 - Checking Communication Function This program sends a queries, and displays the reply. Listing !------------------------------------ ! Agilent 8156A Programming Example 1 ! A Simple Communications Check !------------------------------------ ! Definitions and initialisations Att=728 This statement sets the address of the attenuator. The first 7 is to...
Page 133: Example 2 - Status Registers And Queues
Service ReQuest (SRQ) occurs. The number of the most recent error, and the most recent contents of the output queue is also displayed. Listing !-------------------------------------------------- ! Agilent 8156A Programming Example 2 ! Status Structure, and a useful self learning tool !-------------------------------------------------- ! Declarations and initializations INTEGER Value,Bit,Quot,Xpos,Ypos...
Page 134 Programming Examples Example 2 - Status Registers and Queues PRINT TABXY(4,10);" ^" PRINT TABXY(4,11);" +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+" PRINT TABXY(4,12);" : :" PRINT TABXY(4,13);" +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+" PRINT TABXY(4,14);" PON URQ CME EXE DDE QYE RQC OPC" PRINT TABXY(40,12);"Standard Event Status Register" PRINT TABXY(4,16);"Last Command :" PRINT TABXY(4,17);"Last Error :"...
Page 135 Programming Examples Example 2 - Status Registers and Queues Value=Value-Bit ! If MAV is set, then get and display the output que ue contents IF Z=0 THEN IF Bit=16 THEN ENTER Att;A$ PRINT TABXY(21,18);A$ END IF END IF 1000 ! If the bit is not set, then display 0 1010 1020 ELSE...
Page 136: Example 3 - Measuring And Including The Insertion Loss
Requirements This example uses the Agilent 8156A Attenuator, with a 8153A multimeter with one source and one sensor. The connectors for this system are all HMS-10.
Page 137: Figure 9-2 Hardware Configuration For Attenuation Example - B
Programming Examples Example 3 - Measuring and Including the Insertion Loss b. Connect both instruments to the electric supply. c. Switch on both instruments. NO T E Under normal circumstances you should leave the instruments to warmup. (The multimeter needs around 20 minutes to warmup. The attenuator needs around 45 minutes with the shutter open to warmup.) Warming up is necessary for accuracy of the sensor, and the output power of the source.
Page 138 Programming Examples Example 3 - Measuring and Including the Insertion Loss Listing !----------------------------------------- ! Programming Example 3 ! Measuring the Insertion Loss and using it as a Cal factor !----------------------------------------- ! Definitions and Initializations Att=728 Mm=722 OUTPUT Mm;"*rst;*cls" OUTPUT Att;"*rst;*cls" Setup the instruments, with the output of the source connected ! to the input of the sensor and wait for the ENTER key to ! be pressed before continuing...
Page 139 Programming Examples Example 3 - Measuring and Including the Insertion Loss OUTPUT Mm;"sour2:pow:stat on" OUTPUT Att;"outp on" ! Read in the power now (the insertion loss of the attenuat ! and put it into the calibration factor on the attenuator. OUTPUT Mm;"read1:pow?"...
Page 140: Example 4 - Running An Attenuation Sweep
Function We set up the instrument to sweep from 0dB to 5dB with an interval of 0.5dB, dwelling for a second at each attenuation factor. The requirements are an Agilent 8156A Attenuator. Listing !------------------------------------------------- ! Agilent 8156A Programming Example 4...
Page 141 Programming Examples Example 4 - Running an Attenuation Sweep Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 142: A Installation
Installation Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 143 Installation This appendix provides installation instructions for the attenuator. It also includes information about initial inspection and damage claims, preparation for use, packaging, storage, and shipment. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 144: Safety Considerations
If the contents are incomplete, mechanical damage or defect is apparent, or if an instrument does not pass the operator’s checks, notify the nearest Agilent Technologies office. WA RN IN G To avoid hazardous electrical shock, do not perform electrical tests when there are signs of shipping damage to any portion of the outer enclosure (covers, panels, etc.).
Page 145: Ac Line Power Supply Requirements
AC Line Power Supply Requirements A.3 AC Line Power Supply Requirements The Agilent Technologies 8156A can operate from any single- phase AC power source that supplies between 100V and 240V at a frequency in the range from 50 to 60Hz. The maximum power consumption is 40VA with all options installed.
Page 146: Figure A-2 Rear Panel Markings
Installation AC Line Power Supply Requirements • Before switching on the instrument, the protective earth terminal of the instrument must be connected to a protective conductor. You can do this by using the power cord supplied with the instrument. • It is prohibited to interrupt the protective earth connection intentionally.
Page 147: Replacing The Battery
Installation AC Line Power Supply Requirements Replacing the Battery This instrument contains a lithium battery. Replacing thebattery should be carried out only by a qualified electrician or by Agilent Technologies service personnel. There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or an equivalent type (Agilent part number 1420-0394).
Page 148: Figure A-3 Releasing The Fuse Holder
Installation AC Line Power Supply Requirements Figure A-3 Releasing the Fuse Holder 2. Pull the fuse holder out of the instrument. Figure A-4 The Fuse Holder 3. Check and replace the fuse as necessary making sure that the fuse is always in the top position of the fuse holder, and the bridge is in the bottom.
Page 149: Operating And Storage Environment
WA RN IN G The Agilent 8156A is not designed for outdoor use. To prevent potential fire or shock hazard, do not expose the instrument to rain or other excessive moisture.
Page 150: Switching On The Attenuator
Installation Switching on the Attenuator rear, and at least 25mm (1inch) of clearance at each side. Failure to provide adequate air clearance may result in excessive internal temperature, reducing instrument reliability. Figure A-5 Correct Positioning of the Attenuator A.5 Switching on the Attenuator When you switch on the attenuator it goes through self test.
Page 151: Optical Output
Installation Optical Output coupling ratio, and its wavelength dependence, for the Monitor Output yourself. A.7 Optical Output CA UT I O N The attenuator is supplied with either a straight contact connector or an angled contact connector (Option 201). Make sure that you only use the correct cables with your chosen output.
Page 152: Connector
Figure A-6 GPIB Connector CA UT I O N Agilent Technologies products delivered now are equipped with connectors having ISO metric- threaded lock screws and stud mounts (ISO M3.5 × 0.6) that are black in color. Earlier connectors may have lock screws and stud mounts with imperial-threaded lock screws and stud mounts (6-32 UNC) that have a shiny nickel finish.
Page 153: Gpib Logic Levels
Return Shipments to Agilent Technologies If the instrument is to be shipped to an Agilent Technologies/ Service Office, attach a tag showing owner, return address, model number and full serial number and the type of service required.
Page 154 Installation Claims and Repackaging 1. Wrap instrument in heavy paper or plastic. 2. Use strong shipping container. A double wall carton made of 350-pound test material is adequate. 3. Use enough shock absorbing material (3 to 4 inch layer) around all sides of the instrument to provide a firm cushion and prevent movement inside container.
Page 155 Installation Claims and Repackaging Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 156: B Accessories
Accessories Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 158: Instrument And Options
Accessories Instrument and Options B.1 Instrument and Options Table B-1 Mainframe Description Model No. Optical Attenuator Agilent 8156A Standard Option 100 High Performance Version Option 101 High Performance, High Return Loss Version Option 201 Monitor Output Option 121 Monitor Output...
Page 159: Connector Interfaces And Other Accessories
Accessories Connector Interfaces and Other Accessories • GPIB Cable, 10833D, 0.5 m (1.6 ft.) • GPIB Adapter, 10834A, 2.3 cm extender. B.3 Connector Interfaces and Other Accessories The attenuator is supplied with one of three connector interface options. • All options other than option 201 are supplied with a straight contact connector •...
Page 160: Figure B-1 Straight Contact Connector Configuration
Accessories Connector Interfaces and Other Accessories Figure B-1 Straight Contact Connector Configuration Table B-2 Connector Interface Description Agilent Model No. Biconic 81000WI 81000GI Diamond HMS-10/HP 81000AI DIN 47256 81000SI FC/PC 81000FI 81000KI 81000VI Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 161: Option 201, Angled Contact Connector
Accessories Connector Interfaces and Other Accessories Option 201, Angled Contact Connector If you want to use angled contact connectors (such as FC/APC, Diamond HRL-10, DIN, or SC/APC) to connect to the instrument, you must 1. attach your connector interface (see the list of connector interfaces below) to the interface adapter, 2.
Page 162 Accessories Connector Interfaces and Other Accessories Table B-3 Connector Interface Description AgilentModel No. Diamond HRL-10 (DIN) 81000SI FC/APC 81000FI SC/APC 81000KI Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 163 Accessories Connector Interfaces and Other Accessories Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 164: C Specifications
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Page 165 Specifications Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 166: Definition Of Terms
Specifications Definition of Terms C.1 Definition of Terms Attenuation accuracy The difference between the displayed loss and → excess loss. Conditions: Attenuation adjustment prior to measurement. That is, adjustment of the measured attenuation at the highest setting so that it equals the attenuation setting, for example by adjusting the wavelength setting.
Page 167 (10 seconds). Conditions: Generation of all polarization states (covering the entire Poincar sphere. Measurement: with the Agilent Technologies polarization analyzer. Repeatability The random uncertainty in reproducing the attenuation after changing and re-setting the attenuation. The repeatability is ± half the span between the maximum and the minimum attenuations, expressed in dB.
Page 168: Specifications
Specifications Specifications C.2 Specifications Specifications describe the instrument’s warranted performance. Supplementary performance characteristics describe the instrument’s non-warranted typical performance. Specifications are measured at 1310nm and 1550nm using a laser source, single-mode fiber and Agilent 81000AI or Agilent 81000SI connector interfaces. Table C-1 Specifications - Options 100, 101 and 201 Option 100...
Page 169: Table C-2 Monitor Output Options
Specifications Specifications • Includes insertion loss of two HMS-10 connectors. Typical variation over temperature range <0.3dBpp. • Measured at constant temperature. • With narrow linewidth lasers, such as DFB lasers, power fluctuations up to 0.2dBpp may occur. Table C-2 Monitor Output Options Option 121 Option 221 High...
Page 170: Supplementary Performance Characteristics
Specifications Specifications Table C-3 Multimode Options Option 350 Wavelength Range 1200 - 1650nm Attenuation Range 60dB (excluding insertion loss) 50/125 µ m multimode Fiber Type Connector Type straight contact 22dB Return Loss Insertion Loss (typ) < ± 0.1dB Attenuation Accuracy (linearity) <...
Page 171 Specifications Specifications λ : Entering of wavelength for automatic correction of attenuation using typical correction values. Cal: Offset factor to adjust the attenuation factor on the display within ± 99.999dB range. Disp → Cal: Sets attenuation value on the display to 0.000dB. Swp: Manual or automatic up or down attenuation sweep.
Page 172: Other Specifications
Specifications Other Specifications Installation Category (IEC 664) II Pollution Degree (IEC 664) 2 Specifications valid at non-condensing conditions. Power: , ± 10%, 90VA max, 48-400Hz. 100/110/220/240V Battery Back-Up: (for non-volatile memory) With the instrument switched off all current modes and data will be maintained for at least 10 years after delivery when stored at room temperature.
Page 173: Declaration Of Conformity
Supplementary Information: The product also conforms to other standards not listed here. If further information on conformance is needed, please contact your local Agilent Technologies Representative. The product was tested in a typical configuration with Agilent systems (Type test). Böblingen, September 1st, 1993...
Page 174 Performance Tests Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 175 The procedures in this section test the optical performance of the instrument. The complete specifications to which the Agilent Technologies 8156A is tested are given in Appendix C. All tests can be performed without access to the interior of the instrument.
Page 176: Equipment Required
Performance Tests Equipment Required D.1 Equipment Required The equipment required for the performance test is listed in the table below. Any equipment which satisfies the critical specifications of the equipment given in the table, may be substituted for the recommended models. Artisan Technology Group - Quality Instrumentation ...
Page 177: Table D-1 Equipment Required For The Agilent 8156A (1310/1550Nm)
Performance Tests Equipment Required Table D-1 Equipment Required for the Agilent 8156A (1310/1550nm) Recommended HP/ Instrument/Accessory Agilent Model Required for Option Power Meter 8153A Mainframe with CW Laser Sources 1310/1550nm 81552SM and 81553SM or 81554SM LED Source 1300nm 81542MM Opt. Sensor Module...
Page 178: Test Record
The Test Record can also be used as a permanent record and may be reproduced without written permission from Agilent Technologies. D.3 Test Failure If the Agilent 8156A fails any performance test, return the instrument to the nearest Agilent Technologies Sales/Service Office for repair. D.4 Instrument Specification Specifications are the performance characteristics of the instrument which are certified.
Page 179: Performance Test
Make sure that all optical connectors are undamaged. The value for insertion loss depends on the quality of the connectors. The optical cables from the laser source to and from the Agilent 8156A Attenuator to the power meter must be fixed on the table to ensure minimum cable movement during the tests.
Page 180: Total Insertion Loss Test
Performance Tests Performance Test I. Total Insertion Loss Test Specifications Agilent 8156A Typ. Insertion loss (including both connectors) Option 100 <5.4dB Option 101 <3.0dB Option 121 <4.2dB Option 201 <3.0dB Option 221 <3.3dB Option 350 <3.0dB Carry out the following Insertion Loss Test at 1310nm and 1550nm with single-mode fibers using the the equipment listed previously.
Page 181: Figure D-2 Total Insertion Loss Test Setup 1, Options 201, 221
Performance Tests Performance Test Figure D-2 Total Insertion Loss Test Setup 1, Options 201, 221 Figure D-3 Total Insertion Loss Test Setup 1, Option 350 3. On the DUT, press and hold A to reset the attenuation to minimum (any attenuation shown on the display is due to the calibration factor).
Page 182: Figure D-4 Total Insertion Loss Test Setup 2, Options 100, 101, 121
Performance Tests Performance Test Figure D-4 Total Insertion Loss Test Setup 2, Options 100, 101, 121 Figure D-5 Total Insertion Loss Test Setup 2, Options 201, 221 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 183: Linearity/Attenuation Accuracy Test
7. Enable the attenuator output and record the power meter reading (in dB) in the Test Record and check that it is within specifications. II. Linearity/Attenuation Accuracy Test Specifications Agilent 8156A < ± 0.2dB Linearity Option 100 < ± 0.1dB Option 101 <...
Page 184 Performance Tests Performance Test 1. Set the attenuator as follows: λ as required to 0.00 dB to 0.00 dB 2. Connect the equipment as shown in the appropriate Total Insertion Loss Test Setup 2. NO T E Use a tape to fix the fibers on the table. Don’t touch the fibers during the measurement to prevent changes of state of polarization.
Page 185: Attenuation Repeatability Test
Attenuation Accuracy test (see the appropriate Total Insertion Loss Test Setup 2). → R 1. Set the Agilent 8156A attenuation to 1 dB and press D on the power meter. 2. Set the Agilent 8156A attenuation to any other value (e.g.
Page 186: Return Loss Test
Performance Tests Performance Test IV. Return Loss Test Options 100, 101, and 121 Specifications Agilent 8156A Return Loss Option 100 >35dB Option 101 >45dB Option 121 >45dB 1. Make sure that all connectors are carefully cleaned. 2. Connect the source to the HP 81534A Input. Attach the high...
Page 187 If you have the monitor option (option 121), make sure that the cable at the monitor output is terminated. 16. Connect the 81109AC patchcord to the 8156A input, and note the Return Loss result in the Test Record. 17. Connect the 81109AC patchcord to the 8156A output, and note the Return Loss result in the Test Record.
Page 188: Figure D-8 Return Loss Test Setup 2, Options 100, 101
Figure D-8 Return Loss Test Setup 2, Options 100, 101 Figure D-9 Return Loss Test Setup 2, Option 121 Options 201 and 221 Specifications Agilent 8156A Return Loss Option 201 >60dB Option 221 >60dB Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 189: Figure D-10 Return Loss Test Setup 1, Options 201, 221
Performance Tests Performance Test 1. Make sure that all connectors are carefully cleaned. 2. Connect the source to the HP 81534A Input. Attach the high return loss connector of the patchcord to the Output (the high return loss connector on these cables is the connector with the orange sleeve).
Page 190: Figure D-11 Return Loss Test Setup 2, Option 201
If you have the monitor option (option 221), make sure that the cable at the monitor output is terminated. 16. Connect the 81102SC patchcord to the 8156A input, and note the Return Loss result in the Test Record. 17. Connect the 81102SC patchcord to the 8156A output, and note the Return Loss result in the Test Record.
Page 191: Figure D-12 Return Loss Test Setup 2, Option 221
Performance Tests Performance Test Figure D-12 Return Loss Test Setup 2, Option 221 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 192: Polarization Dependent Loss (Pdl): Optional
Performance Tests V. Polarization Dependent Loss (PDL): Optional D.6 V. Polarization Dependent Loss (PDL): Optional Table D-2 Equipment for the PDL test 1 Instrument/Accessory Recommended HP/ Required for Option Agilent Model Polarization Controller 8169A #021 Lightwave Multimeter Mainframe 8153A Optical Head Interface 81533B CW Laser Source 1310nm 81552SM and...
Page 193: Polarization Dependant Loss Test (Mueller Method)
Performance Tests V. Polarization Dependent Loss (PDL): Optional Instead of a standard HP 81521B+ Depolarizing Filter Agilent 81000DF, an HP 81521B #001 can also be used, as this option is especially designed for low PDL. Polarization Dependant Loss Test (Mueller method) 1.
Page 194 Performance Tests V. Polarization Dependent Loss (PDL): Optional CA UT I O N The patchcord from the source to the polarization controller - with the isolator - must not move during and between all measurements. The patchcords between the polarization controller and the optical head must not move from the beginning of the reference measurements until these are finished.
Page 195 Performance Tests V. Polarization Dependent Loss (PDL): Optional already selected. c. Modify the filter setting to find the maximum signal transmission through the polarization controller: • Select the most significant digit by using the cursor key. Use the Modify knob to adjust the displayed angle slowly until the power reading on the multimeter shows the maximum value.
Page 196 Performance Tests V. Polarization Dependent Loss (PDL): Optional a. Select the λ /2 Retarder Plate. Press λ /2 b. Modify the λ /2 plate setting to the same angle as the polarization filter found in item 6c. c. Press E NTER d.
Page 197 Performance Tests V. Polarization Dependent Loss (PDL): Optional approximated: Linear vertical Linear diagonal RH circular λ λ /4 Plate λ /2 Plate λ /4 Plate λ /2 Plate λ /4 Plate λ /2 Plate 1.2 ° 45.6 ° 0.8 ° 22.9 °...
Page 198 Performance Tests V. Polarization Dependent Loss (PDL): Optional b. Linear Vertical polarized light. Set the λ /4 and λ /2 Retarder Plates to the "corrected • wavelength dependent positions" for Linear Vertical polarized light. You need to select the λ /4 and λ /2 Retarder plates by pressing λ...
Page 199: Figure D-14 Pdl Test Setup 2: Power After Dut
CA UT I O N The patchcords between the polarization controller and the optical head must not move until the measurements are finished. 12. Set the 8156A Attenuator (DUT) to 0dB using the modify keys. Figure D-14 PDL Test Setup 2: Power after DUT 13.
Page 200 Performance Tests V. Polarization Dependent Loss (PDL): Optional • Read the power that is displayed on the power meter and note it as P in the test record. DUT01 b. Linear Vertical polarized light. Set the λ /4 and λ /2 Retarder Plates to the "corrected •...
Page 201: Table D-3 Performance Test Agilent 8156A
Switch the laser on and allow to settle for about 5 minutes c. Note the actual wavelength in the test record d. Repeat steps 6. to 14. for this wavelength as well. Table D-3 Performance Test Agilent 8156A Linear vertical Linear diagonal RH Circular λ...
Page 202 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Page 1 of 8 Test Facility: ______________________________________ Report No. ____________________________ ______________________________________ Date: ____________________________ ______________________________________ Customer: ____________________________ ______________________________________ Tested By: ____________________________ Model: Agilent 8156A Attenuator ______ ° C Serial No.
Page 203 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 2 of 8 Model __ __________ Module Report No. _______ Date ________ Test Equipment Used: Description Model No. Trace No. Cal. Due Date 1.
Page 204 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 3 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Spec.
Page 205 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 4 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 206 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 5 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 207 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 6 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 208 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 7 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 209 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 100 Page 8 of 8 Model Agilent 8156A Attenuator Option 100 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 210 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 2 of 8 Model __ __________ Module Report No. _______ Date ________ Test Equipment Used: Description Model No. Trace No. Cal. Due Date 1.
Page 211 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 3 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 212 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 4 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 213 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 5 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 214 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 6 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 215 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 7 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 216 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 101 Page 8 of 8 Model Agilent 8156A Attenuator Option 101 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 217 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 2 of 8 Model __ __________ Module Report No. _______ Date ________ Test Equipment Used: Description Model No. Trace No. Cal. Due Date 1.
Page 218 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 3 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 219 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 4 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 220 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 5 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 221 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 6 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 222 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 7 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 223 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 121 Page 8 of 8 Model Agilent 8156A Attenuator Option 121 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 224 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 2 of 8 Model __ __________ Module Report No. _______ Date ________ Test Equipment Used: Description Model No. Trace No. Cal. Due Date 1.
Page 225 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 3 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 226 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 4 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 227 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 5 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Result Maximum Measurement performed at _________________nm Spec.
Page 228 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 6 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 229 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 7 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 230 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 201 Page 8 of 8 Model Agilent 8156A Attenuator Option 201 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 231 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 2 of 8 Model __ __________ Module Report No. _______ Date ________ Test Equipment Used: Description Model No. Trace No. Cal. Due Date 1.
Page 232 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 3 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 233 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 4 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 234 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 5 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 235 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 6 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 236 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 7 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 237 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 221 Page 8 of 8 Model Agilent 8156A Attenuator Option 221 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 238 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 350 Page 2 of 5 Model __ __________ Module Report No. _______ Date ________ Test Equipment Used: Description Model No. Trace No. Cal. Due Date 1.
Page 239 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 350 Page 3 of 5 Model Agilent 8156A Attenuator Option 350 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 240 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 350 Page 4 of 5 Model Agilent 8156A Attenuator Option 350 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 241 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test for the Agilent 8156A Option 350 Page 5 of 5 Model Agilent 8156A Attenuator Option 350 No. _______________ Date_______________ Test Test Description Minimum Maximum Measurement performed at _________________nm Spec. Result Spec.
Page 242 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test (optional) Page 1 of 6 Test Facility: ______________________________________ Report No. ____________________________ ______________________________________ Date: ____________________________ ______________________________________ Customer: ____________________________ ______________________________________ Tested By: ____________________________ Model: ___________________ ______ °...
Page 243 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 2 of 6 Test Equipment Used: Description HP/Agilent Trace No. Cal. Due Date Model No. Polarization Controller 8169A #021 ___________ ___________ ____/____/____...
Page 244 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 3 of 6 Model Agilent 8156A Optical Attenuator Date ________ Option: _____________________ No. _______________________________________ Wavelength 1310nm (nominal) Actual wavelength: ______________________nm Polarization Linear...
Page 245 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 4 of 6 Minimum and maximum transmission: ____________________________ – ____________________________ Polarization Dependent Loss Maximum Specification Measurement = 10log(T #100 #101, #201 #121, #221...
Page 246 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 5 of 6 Model Agilent 8156A Optical Attenuator Date ________ Option: _____________________ No. _______________________________________ Wavelength 1550nm (nominal) Actual wavelength: ______________________nm Polarization Linear...
Page 247 Performance Tests V. Polarization Dependent Loss (PDL): Optional Performance Test Agilent 8156A: V. Polarization Dependent Loss Test Page 6 of 6 Minimum and maximum transmission ____________________________ – ____________________________ Polarization Dependent Loss Maximum Specification Measurement = 10log(T #100 #101, #201 #121, #221...
Page 248: E Cleaning Information
Cleaning Information Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 249: Cleaning Instructions For This Instrument
Please try, whenever possible, to use physically contacting connectors, and dry connections. Clean the connectors, interfaces, and bushings carefully after use. Agilent Technologies assume no liability for the customer’s failure to comply with these requirements. Cleaning Instructions for this Instrument The Cleaning Instructions apply to a number of different types of Optical Equipment.
Page 250: Safety Precautions
Cleaning Information Safety Precautions E.1 Safety Precautions Please follow the following safety rules: • Do not remove instrument covers when operating. • Ensure that the instrument is switched off throughout the cleaning procedures. • Use of controls or adjustments or performance of procedures other than those specified may result in hazardous radiation exposure.
Page 251: What Do I Need For Proper Cleaning
Cleaning Information What do I need for proper cleaning? means that they can cover a part of the end of a fiber core, and as a result will reduce the performance of your system. Furthermore, the power density may burn dust into the fiber and cause additional damage (for example, 0 dBm optical power in a single mode fiber causes a power density of approximately 16 million W/m...
Page 252 What do I need for proper cleaning? Dust and shutter caps All of Agilent Technologies’ lightwave instruments are delivered with either laser shutter caps or dust caps on the lightwave adapter. Any cables come with covers to protect the cable ends from damage or contamination.
Page 253 Cleaning Information What do I need for proper cleaning? hygiene products (for example, a supermarket or a chemist’s shop). You may be able to obtain various sizes of swab. If this is the case, select the smallest size for your smallest devices. Ensure that you use natural cotton swabs.
Page 254: Additional Cleaning Equipment
Cleaning Information What do I need for proper cleaning? cleaning purposes has soft bristles, which will not produces scratches. There are many different kinds of pipe cleaner available from tobacco shops. The best way to use a pipe cleaner is to push it in and out of the device opening (for example, when cleaning an interface).
Page 255 Cleaning Information What do I need for proper cleaning? • Microscope with a magnification range about 50X up to 300X • Ultrasonic bath • Warm water and liquid soap • Premoistened cleaning wipes • Polymer film • Infrared Sensor Card Microscope with a magnification range about 50X up to 300X A microscope can be found in most photography stores, or can be obtained through or specialist mail order companies.
Page 256 Cleaning Information What do I need for proper cleaning? water, as this may cause mechanical stress, which can damage your optical device. Ensure that your liquid soap has no abrasive properties or perfume in it. You should also avoid normal washing-up liquid, as it can cover your device in an iridescent film after it has been air-dried.
Page 257: Preserving Connectors
Keep the caps on the equipment always when it is not in use. All of Agilent Technologies’ lightwave instruments and accessories are shipped with either laser shutter caps or dust caps. If you need additional or replacement dust caps, contact your nearest Agilent Technologies Sales/Service Office.
Page 258: E.5 Cleaning Instrument Housings
Cleaning Information Cleaning Instrument Housings and dirty the surface of the device. In addition, the characteristics of your device can be changed and your measurement results affected. E.5 Cleaning Instrument Housings Use a dry and very soft cotton tissue to clean the instrument housing and the keypad.
Page 259: E.7 How To Clean Connectors
Cleaning Information How to clean connectors E.7 How to clean connectors Cleaning connectors is difficult as the core diameter of a single- mode fiber is only about 9 µ m. This generally means you cannot see streaks or scratches on the surface. To be certain of the condition of the surface of your connector and to check it after cleaning, you need a microscope.
Page 260: An Alternative Procedure
Cleaning Information How to clean connector adapters 1. Moisten a new cotton-swab with isopropyl alcohol. 2. Clean the connector by rubbing the cotton-swab over the surface using a small circular movement. 3. Take a new, dry soft-tissue and remove the alcohol, dissolved sediment and dust, by rubbing gently over the surface using a small circular movement.
Page 261: Procedure For Stubborn Dirt
Cleaning Information How to clean connector interfaces 1. Clean the adapter by rubbing a new, dry cotton-swab over the surface using a small circular movement. 2. Blow away any remaining lint with compressed air. Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the adapter: 1.
Page 262: Procedure For Stubborn Dirt
Cleaning Information How to clean bare fiber adapters the surface using a small circular movement. 3. Blow away any remaining lint with compressed air. Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the interface: 1.
Page 263: Procedure For Stubborn Dirt
Cleaning Information How to clean lenses 1. Blow away any dust or dirt with compressed air. Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the adapter: 1. Clean the adapter by pushing and pulling a new, dry pipe-cleaner into the opening.
Page 264: Procedure For Stubborn Dirt
Cleaning Information How to clean instruments with a fixed connector interface Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the lens: 1. Moisten a new cotton-swab with isopropyl alcohol. 2. Clean the lens by rubbing the cotton-swab over the surface using a small circular movement.
Page 265 Cleaning Information How to clean instruments with an optical glass plate Never try to open the instrument and clean the optical block by yourself, because it is easy to scratch optical components, and cause them to be misaligned. E.13 How to clean instruments with an optical glass plate Some instruments, for example, the optical heads from Agilent Technologies have an optical glass plate to protect the sensor.
Page 266: Preferred Procedure
WA RN IN G For instruments with a deeply recessed lens interface (for example the Agilent Technologies 81633A and 81634A Power Sensors) do NOT follow ths procedure. Alcohol and compressed air could damage your lens even further. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 267: Preferred Procedure
Cleaning Information How to clean instruments with a recessed lens interface Keep your dust and shutter caps on, when your instrument is not in use. This should prevent it from getting too dirty. If you must clean such instruments, please refer the instrument to the skilled personnel of Agilent’s service team.
Page 268: E.16 How To Clean Optical Devices Which Are Sensitive To Me Chanical Stress And Pressure
Cleaning Information How to clean optical devices which are sensitive to mechanical stress and pressure E.16 How to clean optical devices which are sensitive to mechanical stress and pressure Some optical devices, such as the Agilent 81000BR Reference Reflector, which has a gold plated surface, are very sensitive to mechanical stress or pressure.
Page 269: E.17 How To Clean Metal Filters Or Attenuator Gratings
Cleaning Information How to clean metal filters or attenuator gratings E.17 How to clean metal filters or attenuator gratings This kind of device is extremely fragile. A misalignment of the grating leads to inaccurate measurements. Never touch the surface of the metal filter or attenuator grating. Be very careful when using or cleaning these devices.
Page 270: How To Clean Bare Fiber Ends
Cleaning Information Additional Cleaning Information • How to clean bare fiber ends • How to clean large area lenses and mirrors How to clean bare fiber ends Bare fiber ends are often used for splices or, together with other optical components, to create a parallel beam. The end of a fiber can often be scratched.
Page 271: Procedure For Stubborn Dirt
Cleaning Information Additional Cleaning Information 1. Blow away any dust or dirt with compressed air. Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the lens: CA UT I O N Only use water if you are sure that your device does not corrode. Do not use hot water as this can lead to mechanical stress, which can damage your device.
Page 272: Alternative Procedure B
This section contain some additional hints which we hope will help you further. For further information, please contact your local Agilent Technologies representative. Making the connection Before you make any connection you must ensure that all lightwave cables and connectors are clean.
Page 273: Immersion Oil And Other Index Matching Compounds
Cleaning Information Other Cleaning Hints and so on. To be absolutely certain that a cleaning paper is applicable, please ask the salesperson or the manufacturer. Immersion oil and other index matching compounds Do not use immersion oil or other index matching compounds with optical sensors equipped with recessed lenses.
Page 274: F Error Messages
Error messages Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 275 Error Messages Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 276: F.1 Display Messages
Error Messages Display Messages F.1 Display Messages FAILnnnn indicates that the self test has failed. The number nnnn is a four digit hexadecimal number that indicates which part of the self test has failed. Hexadecimal Bits Mnemonics Value Counter 0100 Analog to Digital Convertor 0080 General DSP Hardware...
Page 277: F.2 Gpib Messages
Error Messages GPIB Messages F.2 GPIB Messages Command Errors These are error messages in the range -100 to -199. They indicate that a syntax error has been detected by the parser in a command, such as incorrect data, incorrect commands, or misspelled or mistyped commands.
Page 278 Error Messages GPIB Messages -108 Parameter not allowed More parameters were received for a command than were expected. -109 Missing parameter Fewer parameters were received than the command requires. -110 Command header error A command header is the mnemonic part of the command (the part not containing parameter information.
Page 279 Error Messages GPIB Messages -121 Invalid character in number An invalid character was found in numeric data (note, this may include and alphabetic character in a decimal data, or a "9" in octal data). -123 Exponent too large The exponent must be less than 32000. -124 Too many digits The mantissa of a decimal number can have a maximum of 255 digits (leading zeros are not counted).
Page 280 Error Messages GPIB Messages -141 Invalid character data The character data is incorrect or inappropriate. -144 Character data too long Character data can have a maximum of 12 characters. -148 Character data not allowed Character data was found where none is allowed. -150 String data error This error indicates that the parser has found an error in string data but cannot be more specific.
Page 281: Execution Errors
Error Messages GPIB Messages Execution Errors These are error messages in the range -200 to -299. They indicate that an execution error has been detected by the execution control block. An execution error is signaled by the execution error bit (bit 4) in the event status register.
Page 282: Device-Specific Errors
Error Messages GPIB Messages -223 Too much data The block, expression, or string data was too long for the instrument to handle. -224 Illegal parameter value One value from a list of possible values was expected. The parameter received was not found in the list. -240 Hardware error Indicates that a command could not be executed due to a hardware error but the control block cannot be more specific.
Page 283: Query Errors
Error Messages GPIB Messages -314 Save/recall memory lost The nonvolatile data saved by the *SAV command has been lost. -315 Configuration memory lost The nonvolatile configuration data saved by the instrument has been lost. -330 Self-test failed Further information about the self-test failure is available by using *TST?.
Page 284: Instrument Specific Errors
Error Messages GPIB Messages -430 Query DEADLOCKED A condition causing a deadlocked query has occurred (for example, both the input and the output buffer are full and the device cannot continue). -440 Query UNTERMINATED after indefinite response Two queries were received in the same message. The error occurs on the second query if the first requests an indefinite response, and was already executed.
Page 285 Error Messages GPIB Messages Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 286 Index .....40, ..29, Symbols Attenuation factor Default 38, ....39, ..108 Maximum .....95, *CLS ..108 Minimum .....39, Default 96, ....101 ...40 Resetting .....95 *ESE ..29, 40 Transferring to ..106 Maximum ....96 *ESE? Capital letters (when pro- ..106 Minimum ....96 *ESR? ..85 ...39 gramming) Resetting...
Page 287 Index ...50 ..33, Resetting Repositioning 34, ..68, 116, ...118 ....81 IEC 625-1 .....116, Settling IEEE .....81 .....144 Address Earth ..97 Firmware revision ..81 IEEE 488.1-1987 Editing ..143 Function Test ..81, 93 ..30 IEEE 488.2-1987 Non-numeric Fuse ....30 ..81 IEEE 488-1978 Numeric ..146 Replacing...
Page 288 Index .....83 ..118, Local NTRansition? .....72 LOCKOUT ....85 Long form ....72 P ON SET .....72 Default ...72 Resetting ....98 Parser ....107, OFFSet .....84 Starting ...143 Maintenance Polarization dependent loss ....52 ....108 MANUAL OFFSet? ..97 .....116, Manufacturer OPERation Polarization mode dispersion .....84, 117, ....118, 95, ....101,...
Page 289 Index ..85 51, ..52 ..101, Questionable status Short form ...50, 53 ....103 102, ....114, Selftest Resetting ....124 ..97 STARt 115, ....122 Serial number ....125 ....94 .119 STARt? Serial poll Condition register ....113, ..119, ..94 OUTPut Enable register Service Request Service Request Enable ..120 ....125 Event register...
Page 290 Index Temperature considerations ....34, User Temperature 67, ..69 .....148 Cooling ..148 Operating ....148 Storing 116, Temperature variation ....126 VALue Wavelength calibration data ....127 VALue? ...69 .......60 ......60 ..112, Through power ...109 WAVelength ....33, Wavelength .....113 Default 40, ....67, ..113 Maximum 109, ....110 ..113 Minimum...
Page 291 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...

Agilent Technologies 8156A Operating And Programming Manual

1 Getting Started

2 Using the Attenuator

3 Making an Attenuation Sweep

4 Using Your Attenuator as a Variable Back Reflector

5 Setting up the System

6 Storing and Recalling Settings

7 Programming the Attenuator

8 Remote Commands

9 Programming Examples

A Installation

Safety Considerations

Initial Inspection

AC Line Power Supply Requirements

Operating and Storage Environment

Monitor Output

Switching on the Attenuator

Optical Output

GPIB Interface

Claims and Repackaging

B Accessories

Instrument and Options

GPIB Cables and Adapters

Connector Interfaces and Other Accessories

C Specifications

Definition of Terms

Specifications

Other Specifications

Declaration of Conformity

Equipment Required

Test Record

Test Failure

Instrument Specification

Performance Test

Polarization Dependent Loss (PDL): Optional

E Cleaning Information

Safety Precautions

Why Is It Important to Clean Optical Devices

What Do I Need for Proper Cleaning

Preserving Connectors

E.5 Cleaning Instrument Housings

E.7 How to Clean Connectors

E.17 How to Clean Metal Filters or Attenuator Gratings

F Error Messages

F.1 Display Messages

F.2 GPIB Messages

Quick Links

Related Manuals for Agilent Technologies 8156A

Summary of Contents for Agilent Technologies 8156A