Agilent Technologies 81950A User Manual
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Agilent Technologies 81950A User Manual

Agilent Technologies 81950A User Manual

Compact tunable laser source module
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Agilent 81950A
Compact Tunable Laser Source module
User's Guide
Agilent Technologies

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Summary of Contents for Agilent Technologies 81950A

  • Page 1 Agilent 81950A Compact Tunable Laser Source module User’s Guide Agilent Technologies...
  • Page 2 Further, to prior agreement and written consent from Government will receive no greater than the maximum extent permitted by Agilent Technologies, Inc. as governed by Restricted Rights as defined in FAR applicable law, Agilent disclaims all United States and international copyright 52.227-19(c)(1-2) (June 1987).
  • Page 3 Agilent Technologies Sales and Service Offices For more information about Agilent Technologies test and measurement products, applications, services, and for a current sales office listing, visit our web site: http://www.agilent.com/comms/lightwave You can also contact one of the following centers and ask for a test and measurement sales representative.
  • Page 4 This chapter provides a general description of the specific features of the 81950A compact tunable laser module. Chapter 4, “Programming Instructions" This chapter describes the SCPI Commands for use of 81950A compact tunable laser modules and N7711A, N7714A single and 4-port Tunable Laser System Sources. Chapter 5, “Specifications"...

  • Page 5: Table Of Contents

    Front Panels Front Panel Controls and Indicators Typical Use Models Optical Output Polarization Maintaining Fiber Angled and Straight Contact Connectors Signal Input and Output Accessories Modules and Options Modules Options Connector Interfaces User’s Guides Agilent 81950A Compact TLS module,First Edition...
  • Page 6 The Module's Front Panel Programming Instructions Summary Detailed Description The OUTPut sub tree The SOURce:CHANnel:POWer sub tree The SOURce:CHANnel:WAVelength sub tree The SOURce:CHANnel:FREQuency sub tree The SOURce:CHANnel:MODUIation sub tree Error Messages Status Bits Agilent 81950A Compact TLS module, First Edition...
  • Page 7 Differences among 81950A, N7711A and N7714A 81950A Only N771A, N7714A Only Specifications Definition of Terms Absolute wavelength (frequency) accuracy External analog modulation - modulation depth Linewidth Maximum output power Operating temperature and humidity Output isolation Polarization extinction ratio Power flatness versus wavelength...
  • Page 8 Which Cleaning Procedure should I use? How to clean connectors How to clean connector interfaces How to clean bare fiber adapters How to clean instruments with a fixed connector interface Additional Cleaning Information Other Cleaning Hints Index Agilent 81950A Compact TLS module, First Edition...
  • Page 9 Agilent 81950A Compact TLS module,First Edition...
  • Page 10 Agilent 81950A Compact TLS module, First Edition...

  • Page 11: Getting Started

    Getting Started This chapter provides a general description of Agilent 81950A Compact TLS module. Safety Considerations ......12 Safety Symbols .

  • Page 12: Safety Considerations

    Agilent Technologies Inc. assumes no liability for the customer’s failure to comply with these requirements. Before operation, review the instrument and manual, including the red safety page, for safety markings and instructions.

  • Page 13: Initial Inspection

    Agilent Technologies Sales/Service Center for repair and calibration. Line Power Requirements The Agilent 81950A Compact Tunable Laser Source modules operate when installed in Agilent 8163A/B Lightwave Multimeters, Agilent 8164A/B Lightwave Measurement Systems, and Agilent 8166A/B Lightwave Multichannel Systems.

  • Page 14: Input/Output Signals

    +- 5V when applying external voltage. Storage and Shipment An Agilent 81950A Compact Tunable Laser Source module can be stored or shipped at temperatures between - 40°C and + 70°C. Protect the module from temperature extremes that may cause condensation within it.

  • Page 15: Initial Safety Information For Tunable Laser Modules

    * Max. CW output power is defined as the highest possible optical power that the laser source can produce at its output connector. ** Max. permissible CW output power is the highest optical power that is permitted within the appropriate laser class. Agilent 81950A Compact TLS module, First Edition...

  • Page 16: Laser Safety Labels

    Laser Safety Labels Laser class 1M label Figure 1 Class 1M Safety Label - 81950A A sheet of laser safety labels is included with the laser module as required. In order to meet the requirements of IEC 60825-1 we recommend that you...

  • Page 17: Introduction

    What is a Tunable Laser Source? A Tunable Laser Source (TLS) is a laser source for which the wavelength can be varied through a specified range. The Agilent Technologies range of TLS modules also allow you to set the output power, and to choose between continuous wave or modulated power.

  • Page 18: Front Panel Controls And Indicators

    [State] parameter in the instrument’s Graphical User Interface, or remotely using SCPI commands. When the Active LED is lit the source is emitting radiation. When the Active LED is not lit the source is not emitting radiation. Agilent 81950A Compact TLS module, First Edition...

  • Page 19: Typical Use Models

    DWDM applications Device Characterization at high power levels The high optical output power of the Agilent 81950A Compact TLS module improves the testing of all types of optical amplifiers and other active components as well as broadband passive optical components. It helps overcome losses in test setups or in the device under test itself.
  • Page 20 Getting Started Typical Use Models Specifications: For further details on specifications, see the “Specifications” on page 75. Agilent 81950A Compact TLS module, First Edition...

  • Page 21: Optical Output

    Fiber Cladding Fiber Core (8- µm Diameter) Stress Rods Slow Axis (Polarization Axis) Not to Scale Figure 3 PMF Output Connector Chapter 2, “Modules and Options" for further details on connector interfaces and accessories. Agilent 81950A Compact TLS module, First Edition...

  • Page 22: Angled And Straight Contact Connectors

    Getting Started Optical Output Angled and Straight Contact Connectors Angled contact connectors are available as an option for Agilent 81950A Compact TLS modules. Angled contact connectors help you to control return loss, since reflected light tends to reflect into the cladding, reducing the amount of light that reflects back to the source.

  • Page 23: Signal Input And Output

    C A U T I O N 81950A Compact Tunable Laser Source module. To prevent the BNC interface from damage, do not exceed the voltage limit of +- 5V when applying external voltage. Agilent 81950A Compact TLS module, First Edition...
  • Page 24 Getting Started Signal Input and Output Agilent 81950A Compact TLS module, First Edition...

  • Page 25: Accessories

    Accessories The Agilent 81950A Compact TLS module is available in various configurations for the best possible match to the most common applications. This chapter provides information on the available options and accessories. Modules and Options ......26 Modules .

  • Page 26: Modules And Options

    Accessories Modules and Options Modules and Options Figure 5 shows all the options that are available for Agilent 81950A Compact TLS module, and the instruments that support these modules. High Power Compact Tunable Laser module High Power 81950A Compact Tunable Laser Source 1527nm-1566nm...

  • Page 27: Modules

    Modules and Options Accessories Modules Agilent 81950A Compact TLS module can be hosted by: • Agilent 8163A and Agilent 8163B Lightwave Multimeters, • Agilent 8164A and Agilent 8164B Lightwave Measurement Systems, • Agilent 8166A and Agilent 8166B Lightwave Multichannel Systems.

  • Page 28: Connector Interfaces

    Table 3 Angled Contact Connector Interfaces Description Model number E-2000 APC Agilent 81000 HI SC/APC Agilent 81000 KI FC/APC Agilent 81000 NI DIN 47256 / 4108.6 Agilent 81000 SI Connect your cable. Agilent 81950A Compact TLS module, First Edition...

  • Page 29: User's Guides

    User’s Guides The following User’s Guides are applicable to these Compact TLS module: Table 4 User’s Guides Description Part Number Agilent 81950A Compact Tunable Laser Source module User’s 81950-91020 Guide. Agilent 8163A/B Lightwave Multimeter, Agilent 8164A/B 08164-90B15 Lightwave Measurement System, & Agilent 8166A/B Lightwave Multichannel System User’s Guide.
  • Page 30 Accessories User’s Guides Agilent 81950A Compact TLS module, First Edition...

  • Page 31: Operating Instructions

    This chapter provides a general description of the specific features of instruments using the 81950A compact tunable laser module. Operation ......... 33 Parameters.
  • Page 32 Operating Instructions Symbols used in this chapter Symbols Description λ wavelength frequency reference frequency Δf frequency offset grid spacing channel number (i.e. ITU grid channel number) Agilent 81950A Compact TLS module, First Edition...

  • Page 33: Operation

    SBS suppression FM frequency • Signaling or trace tone AM level The AM modulation is only available with the Agilent 81950A module using the BNC connector at the module's front panel. The N7711A / N7714A instruments platform features no such connector.

  • Page 34: Changing The Grid (F0, S)

    , , , and are restored. f Δ • Grid Mode to Auto Mode: The manually set values , , , and saved. The last frequency set in Auto Mode before is restored. Agilent 81950A Compact TLS module, First Edition...

  • Page 35: Preset Values

    Differences to Other Tunable Laser Source Modules The 81950A compact tunable laser source modules are intended for use as a highly stable high power laser source. They use a different technology which makes them slower when switching on the laser or changing the power or wavelength.

  • Page 36: The Graphical User Interface

    A/B) or "SLock" (8164 A/B). The instrument can also be locked and unlocked using a remote command: N O T E "LOCK 0|1, <password>". Example: unlock the instrument using password "1234": lock 0,1234 Agilent 81950A Compact TLS module, First Edition...

  • Page 37: How To Set A Parameter

    N O T E states. • If a parameter is not displayed on the screen, it can alternatively be accessed using the [Menu] soft key, which opens a menu with all currently available parameters: Agilent 81950A Compact TLS module, First Edition...
  • Page 38 Operating Instructions The Graphical User Interface     Agilent 81950A Compact TLS module, First Edition...

  • Page 39: How To Set The Power

    [Pwr unit] soft key. • Use the [Pmax] soft key to set the maximum power, or • Change the value as described in chapter “How to Set a Parameter” on page 37. Agilent 81950A Compact TLS module, First Edition...

  • Page 40: How To Switch Operation Mode

    " Auto Mode". • Press the [OK] soft key. • Use the Up or Down key to select an operation mode. • Press the [OK] soft key to apply the changed value. Agilent 81950A Compact TLS module, First Edition...
  • Page 41 The Graphical User Interface Operating Instructions Details Screen in Auto Mode     Agilent 81950A Compact TLS module, First Edition...
  • Page 42 Operating Instructions The Graphical User Interface Details Screen in Grid Mode (i.e. Auto Mode off)     Agilent 81950A Compact TLS module, First Edition...

  • Page 43: How To Set The Wavelength Or Frequency

    • If you want to switch from wavelength to frequency or back press the [Freq/Wvl] soft key. • Change the value as described in chapter “How to Set a Parameter 37” on page 31. Agilent 81950A Compact TLS module, First Edition...

  • Page 44: How To Switch On The Laser

    • When finished press [Enter], the Modify Knob, or the [OK] soft key. You can also cancel the operation using the [Cancel] soft key. You can also use the module's front panel key to switch the laser state. N O T E Agilent 81950A Compact TLS module, First Edition...

  • Page 45: How To Set Frequency Parameters In Grid Mode

    • Change the value as described in chapter “How to Set a Parameter” on page 37. Reference frequency and grid spacing can only be changed if the laser is N O T E off. Agilent 81950A Compact TLS module, First Edition...

  • Page 46: How To Check The Output Frequency Or Wavelength

    "Output" group box on the "Details Screen" or can be checked in the menu. (Press the [Menu] soft key to open the menu.) These values are read only. N O T E Agilent 81950A Compact TLS module, First Edition...

  • Page 47: How To Modulate A Signal

    AM level is non-null. Status Line f Δ Δf 0 ≠ The Status line displays " " (8164x) or " " (8163x, 8166x) if the frequency offset doesn't equal 0:     Agilent 81950A Compact TLS module, First Edition...
  • Page 48 RPG, the [OK] soft key, or the [Enter] hard key. This behavior differs from other modules where changed values are sent immediately. Agilent 81950A Compact TLS module, First Edition...

  • Page 49: The User Interface

    (at boot time) initializing hardware blinking fast boot error laser is off blinking slowly laser is on and working, i.e. changing frequency, power or laser state laser is on, frequency and power are stable Agilent 81950A Compact TLS module, First Edition...
  • Page 50 Operating Instructions The User Interface Agilent 81950A Compact TLS module, First Edition...

  • Page 51: Programming Instructions

    81950A Only........

  • Page 52: Summary

    Programming Instructions Summary Summary • This chapter refers to both the 81950A module and the N7711A/N7714A instruments. The N771xA command set is derived from the 8163A/B, 8164A/B, and 8166A/B command set. • Please refer to the Agilent 8163A/B, 8164A/B, 8166A/B Programming Guide for an introduction to programming instruments and for information about programming and syntax conventions.
  • Page 53 Internal modulation rate. page 68 :INTernal:WAVeform? Internal modulation waveform. page 69 :EXTernal[:STATe]/? Sets or returns the state of the amplitude modulation. page 69 :EXTernal:AM[:LEVel]/? Sets or returns signaling or trace tone AM level. page 70 Agilent 81950A Compact TLS module, First Edition...

  • Page 54: Detailed Description

    Description Switches the laser on or off. Parameters OFF or 0: Disable the output ON or 1: Enable the output Response none Example outp1 on Affects Notes This is the same as [:SOURce[n]][:CHANnel[m]:POWer:STATe Agilent 81950A Compact TLS module, First Edition...
  • Page 55 Detailed Description Programming Instructions Command :OUTPut[n][:CHANnel[m][:STATe]? Syntax :OUTPut[n][:CHANnel[m][:STATe]? Description Queries the laser state. Parameters none Response 0: Disabled 1: Enabled Example outp1? Affects Notes This is the same as [:SOURce[n]][:CHANnel[m]:POWer:STATe? Agilent 81950A Compact TLS module, First Edition...

  • Page 56: The Source:channel:power Sub Tree

    Optional: MIN - minimum programmable value MAX - maximum programmable value DEF - default value Response The current power value or the minimum, maximum, or default power value. Example sour1:pow? +2.00000000E-002 Affects Notes Agilent 81950A Compact TLS module, First Edition...
  • Page 57 Sets whether the power unit used is dBm or W. Parameters DBM or 0: Sets the power unit to dBm Watt or 1: Sets the power unit to W Response none Example sour1:pow:unit w Affects Notes This is the same as :OUTPut[n][:CHANnel[m]:POWer:UNIT Agilent 81950A Compact TLS module, First Edition...
  • Page 58 Queries whether the power unit used is dBm or W. Parameters none Response 0: the power unit is dBm +1: the power unit is W Example outp1:pow:un? +1<END> Affects Notes This is the same as :OUTPut[n][:CHANnel[m]:POWer:UNIT? Agilent 81950A Compact TLS module, First Edition...

  • Page 59: The Source:channel:wavelength Sub Tree

    The current wavelength value or the minimum, maximum, or default wave- length value. Example sour1:wav? +1.60000000E-006 Affects Notes "CW" and "FIXED" have no specific meaning, these mnemonics were just add- ed for backward compatibility Agilent 81950A Compact TLS module, First Edition...
  • Page 60 Command [:SOURce[n]][:CHANnel[m]]:WAVelength:AUTO? Syntax [:SOURce[n]][:CHANnel[m]]:WAVelength:AUTO? Description Returns the current operation mode. Parameters none Response 0: "Grid Mode" (= Auto Mode off) 1: "Auto Mode" Example sour1:wav:auto? Affects Notes This query is equivalent to [:SOURce[n][:CHANnel[m]]:FREQuency:AUTO? Agilent 81950A Compact TLS module, First Edition...

  • Page 61: The Source:channel:frequency Sub Tree

    MIN - minimum programmable value MAX - maximum programmable value DEF - default value Response The current frequency value or the minimum, maximum, or default frequency value. Example sour1:freq? +1.88000000E+014 Affects Notes Command [:SOURce[n]][:CHANnel[m]]:FREQuency:REFerence Syntax [:SOURce[n]][:CHANnel[m]]:FREQuency:REFerence<wsp> <value>[HZ|KHZ|MHZ|GHZ|THZ]|MIN|MAX|DEF Agilent 81950A Compact TLS module, First Edition...
  • Page 62 Set the grid spacing for the frequency grid used by the instrument. Parameters Any value in the specified range (see appropriate User's Guide) Also allowed: MIN - minimum programmable value MAX - maximum programmable value DEF - default value Agilent 81950A Compact TLS module, First Edition...
  • Page 63 DEF - default value Response None Example sour1:freq:chan -20 Affects Notes Only available in "Grid Mode". The minimum, maximum, and default value depend on the current reference fre- quency and grid spacing values. Agilent 81950A Compact TLS module, First Edition...
  • Page 64 Any value in the specified range (see appropriate User's Guide) Also allowed: MIN - minimum programmable value MAX - maximum programmable value DEF - default value Response None Example sour1:freq:offs 0.1e9 Affects Notes Only available in "Grid Mode" Agilent 81950A Compact TLS module, First Edition...
  • Page 65 Switch between "Auto Mode" and "Grid Mode", Refer to the chapter “Opera- tion Modes” on page 34. Parameters OFF or 0: "Grid Mode" (= Auto Mode off) ON or 1: "Auto Mode" Response None Example sour1:freq:auto on Agilent 81950A Compact TLS module, First Edition...
  • Page 66 [:SOURce[n]][:CHANnel[m]]:FREQuency:AUTO? Command Syntax [:SOURce[n]][:CHANnel[m]]:FREQuency:AUTO? Description Returns the current operation mode. Parameters none Response 0: "Grid Mode" (= Auto Mode off) 1: "Auto Mode" Example sour1:freq:auto? Affects Notes This query is equivalent to [:SOURce[n][:CHANnel[m]]:WAVelength:AUTO? Agilent 81950A Compact TLS module, First Edition...

  • Page 67: The Source:channel:moduiation Sub Tree

    Syntax [:SOURce[n]][:CHANnel[m]]:MODUlation:INTernal[:STATe]? Description Returns the internal modulation state. Parameters None Response 0: off 1: on Example sour1:modu:int? Affects Notes Command [:SOURce[n]][:CHANnel[m]]:MODUlation:INTernal:SBSControl[:LE Vel] Syntax [:SOURce[n]][:CHANnel[m]]:MODUlation:INTernal:SBSControl[:LEVel] <wsp> <value>[HZ|KHZ|MHZ|GHZ|THZ]|MIN|MAX|DEF Description Sets the internal frequency modulation frequency. Agilent 81950A Compact TLS module, First Edition...
  • Page 68 Returns the internal modulation rate in Hz. Parameters None Response The internal modulation rate in Hz. Example sour:modu:int:rate? +2.00000000E+004 Affects N7711A, N7714A only Notes There is no corresponding command, because the hardware does not allow set- ting this value. Agilent 81950A Compact TLS module, First Edition...
  • Page 69 Example sour1:modu:ext on Affects 81950A only Notes Command [:SOURce[n]][:CHANnel[m]]:MODUlation:EXTernal[:STATe]? Syntax [:SOURce[n]][:CHANnel[m]]:MODUlation:EXTernal[:STATe]? Description Returns the state of the external amplitude modulation. Parameters None Response 0: off 1: on Example sour1:modu:ext? Affects 81950A only Notes Agilent 81950A Compact TLS module, First Edition...
  • Page 70 MIN - minimum programmable value MAX - maximum programmable value DEF - default value Response The current amplitude modulation level or the minimum, maximum, or default amplitude modulation level. Example sour1:modu:ext:am? +2.00000000E+000 Affects 81950A only Notes Agilent 81950A Compact TLS module, First Edition...

  • Page 71: Error Messages

    • -221, "Not allowed while frequency auto mode is off" - you tried to issue a command which is only supported in auto mode. • -221, "Settings conflict" - returned if the laser module reports an invalid configuration Agilent 81950A Compact TLS module, First Edition...

  • Page 72: Status Bits

    The questionable condition and event registers can be queried using • :STATus[m]:QUEStionable:CONDition? • :STATus[m]:QUEStionable:EVENt? Please refer to the Agilent 8163A/B, 8164A/B, 8166A/B Programming Guide for detailed information about the status model. Agilent 81950A Compact TLS module, First Edition...

  • Page 73: Differences Among 81950A, N7711A And N7714A

    Differences among 81950A, N7711A and N7714A Programming Instructions Differences among 81950A, N7711A and N7714A Some commands are not available on both platforms 81950A Only • [:SOURce[n]][:CHANnel[m]]:MODUlation:EXTernal[:STATe]/? • [:SOURce[n]][:CHANnel[m]]:MODUlation:EXTernal:AM[:LEVel]/? N771A, N7714A Only • [:SOURce[n]][:CHANnel[m]]:MODUlation:INTernal:RATE? • [:SOURce[n]][:CHANnel[m]]:MODUlation:INTernal:WAVeform? Agilent 81950A Compact TLS module, First Edition...
  • Page 74 Programming Instructions Differences among 81950A, N7711A and N7714A Agilent 81950A Compact TLS module, First Edition...
  • Page 75 Compact Tunable Laser Module Specifications ..87 Agilent 81950A Compact Tunable Laser Source ... . 88 Specifications ......... 89...

  • Page 76: Specifications

    Specifications apply, unless otherwise noted, for the stated environmental conditions, after warm-up, in CW mode (unmodulated output, SBS suppression off) and at uninterrupted line voltage. “Constant temperature” is a stable operating temperature within ±1 K. Agilent 81950A Compact TLS module, First Edition...

  • Page 77: Definition Of Terms

    Wavelength resolution........86 Wavelength (frequency) stability ......86 Agilent 81950A Compact TLS module, First Edition...

  • Page 78: Absolute Wavelength (Frequency) Accuracy

    Alternatively, Using a heterodyning technique: The output of the laser under test is mixed with another laser of the same type on a wide bandwidth photodetector. The electrical noise spectrum of the photodetector current is measured with Agilent Lightwave signal analyzer, Agilent 81950A Compact TLS module, First Edition...

  • Page 79: Maximum Output Power

    Output isolation The insertion loss of the built-in isolator in the backward direction. Measurement: This characteristic cannot be measured from outside the module. It is based on known isolator characteristics. Agilent 81950A Compact TLS module, First Edition...

  • Page 80: Polarization Extinction Ratio

    Poincaré sphere. Calculate the polarization extinction ratio from the diameters of these circles. Figure 6 Circular traces on the Poincaré sphere used to calculate polarization extinction ra- tio. Agilent 81950A Compact TLS module, First Edition...

  • Page 81: Power Flatness Versus Wavelength

    Conditions: Uninterrupted tunable laser source output power, constant wavelength setting, constant temperature. The long-term power repeatability can be obtained by taking the power N O T E repeatability and power stability into account. Agilent 81950A Compact TLS module, First Edition...

  • Page 82: Power Stability

    Δ fluctuation amplitude within a specified frequency range f and for bandwidth B, and the square of the average optical power P RIN, if expressed as “dB/Hz”, is calculated by: Conditions: As specified. Agilent 81950A Compact TLS module, First Edition...

  • Page 83: Relative Wavelength (Frequency) Accuracy

    Specifies the ratio of the optical power incident to the tunable laser source output port at the wavelength set on the tunable laser source, to the power reflected from the tunable laser source output port. Conditions: Tunable laser source output off. Agilent 81950A Compact TLS module, First Edition...

  • Page 84: Sbs Suppression - Effective Linewidth

    (SSE) power. The SSE power is determined in a specified bandwidth within a ±3 nm window around the signal wavelength, where ±1 nm around the signal wavelength are excluded, expressed in dB per Agilent 81950A Compact TLS module, First Edition...

  • Page 85: Tuning Time

    TLS until the tuning operation has finished. Measurement principles are indicated. Alternative measurement principles of equal value are also acceptable. Wavelength range The range of wavelengths for which the specifications apply (if not otherwise specified). Agilent 81950A Compact TLS module, First Edition...

  • Page 86: Wavelength (Frequency) Repeatability

    (frequencies). Conditions: Time span as specified, uninterrupted tunable laser source output power, constant wavelength and power level settings, constant temperature. Measurement principles are indicated. Alternative measurement principles of equal value are also acceptable. Agilent 81950A Compact TLS module, First Edition...

  • Page 87: Compact Tunable Laser Module Specifications

    Specifications Agilent 81950A Compact Tunable Laser Source ..... 88 Specifications ..........89...

  • Page 88: Agilent 81950A Compact Tunable Laser Source

    Dimensions (H x W x D) 75 x 32 x 335 mm Weight 0.45 kg At maximum output power, as specified, per wavelength range At constant temperature ± 0.5 K Including power stabilization Agilent 81950A Compact TLS module, First Edition...

  • Page 89: Specifications

    Output isolation (typical) 81950A 30 dB Wavelength stability (typical, over 1 min) ± 0.5 pm Polarization maintaining fiber Options 071 and 072 Fiber type Panda Orientation TE mode in slow axis, in line with connector key Agilent 81950A Compact TLS module, First Edition...
  • Page 90 Connector option (required) Tunable laser must be ordered with one connector option Option 071 PMF, straight contact output connector Option 072 PMF, angled contact output connector Connector interface One Agilent 81000xI-Series connector interface is required Agilent 81950A Compact TLS module, First Edition...
  • Page 91 Other Cleaning Hints ........106 Agilent 81950A Compact TLS module, First Edition...

  • Page 92: Cleaning Information

    If you are unsure of the correct cleaning procedure for your optical device, we recommend that you first try cleaning a dummy or test device. Agilent Technologies assume no liability for the customer’s failure to comply with these requirements. Safety Precautions Please follow the following safety rules: •...

  • Page 93: Why Is It Important To Clean Optical Devices

    In this section, we want to suggest ways to help you clean your various optical devices, and thus significantly improve the accuracy and repeatability of your lightwave measurements. Agilent 81950A Compact TLS module, First Edition...

  • Page 94: What Do I Need For Proper Cleaning

    • Soft tissues • Pipe cleaner • Compressed air 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 95 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). While you are cleaning, you should slowly rotate the pipe cleaner. Agilent 81950A Compact TLS module, First Edition...
  • Page 96 A microscope helps you to estimate the type and degree of dirt on your device. You can use a microscope to choose an appropriate cleaning Agilent 81950A Compact TLS module, First Edition...
  • Page 97 Take care never to look into the end of a fiber or any other optical component, when they are in use. This is because the laser can seriously damage your eyes. Agilent 81950A Compact TLS module, First Edition...

  • Page 98: 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 99: Which Cleaning Procedure Should I Use

    Please consult “Cleaning Instructions for this Module” on page 91 for the procedure relevant for this instrument. If you are unsure of how sensitive your device is to cleaning, please contact the manufacturer or your sales distributor. Agilent 81950A Compact TLS module, First Edition...

  • Page 100: How To Clean Connectors

    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. Blow away any remaining lint with compressed air. Agilent 81950A Compact TLS module, First Edition...
  • Page 101 Hold the tip of the connector in the bath for at least three minutes. 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. Blow away any remaining lint with compressed air. Agilent 81950A Compact TLS module, First Edition...

  • Page 102: How To Clean Connector Interfaces

    Clean the interface by rubbing the cotton-swab over the surface using a small circular movement. Using a new, dry pipe-cleaner, and a new, dry cotton-swab remove the alcohol, any dissolved sediment and dust. Blow away any remaining lint with compressed air. Agilent 81950A Compact TLS module, First Edition...

  • Page 103: How To Clean Bare Fiber Adapters

    Clean the adapter by rubbing a new, dry cotton-swab over the surface using a small circular movement. Blow away any remaining lint with compressed air. Agilent 81950A Compact TLS module, First Edition...

  • Page 104: How To Clean Instruments With A Fixed Connector Interface

    This will degrade the performance of your transmission system. 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. Agilent 81950A Compact TLS module, First Edition...

  • Page 105: Additional Cleaning Information

    Take a new soft-tissue and moisten it with isopropyl alcohol. Carefully clean the bare fiber with this tissue. Make your cleave and immediately insert the fiber into your bare fiber adapter in order to protect the surface from dirt. Agilent 81950A Compact TLS module, First Edition...

  • Page 106: Other Cleaning Hints

    Never open the instruments as they can be damaged. Opening the instruments puts you in danger of receiving an electrical shock from your device, and renders your warranty void. Agilent 81950A Compact TLS module, First Edition...
  • Page 107 Index Index Installation 17 Absolute wavelength (frequency) 78 Additional Cleaning Equipment 96 Laser Safety Labels 16 Agilent 81950A Compact Tunable Laser Source 88 Line Power Requirements 13 Cleaning connectors 100 Modules Compact TLS module 75 connector interfaces 28 Connectors interface options 27...
  • Page 108 © Agilent Technologies 2012 Second edition, June 2012 81950-90B01 Agilent Technologies...

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