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- Page 1 BUY – SELL – REPAIR – CALIBRATE sales@simbol.ca 1-866-396-6248 Simbol Test Systems is the one-stop shop for all your fiber optic test equipment and measurement needs. As we are exclusively focused on e-commerce and international distribution of photonic products since 2000, our customers rely on the AssetRelay catalog to find our stock listings of thousands of used and refurbished popular test equipment.
- Page 2 User’s Guide Laser Diode Controller Mainframe LDC-3916 ILX Lightwave Corporation · 31950 Frontage Road · Bozeman, MT, U.S.A. 59715 · U.S. & Canada: 1-800-459-9459 · International Inquiries: 406-556-2481 · Fax 406-586-9405 · ilx.custhelp.com www.ilxlightwave.com 70026506 January 2010...
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Page 4: Table Of Contents
TA B L E O F C O N T E N T S ABLE OF ONTENTS Safety Information and the Manual ....... . .vii General Safety Considerations . - Page 5 TA B L E O F C O N T E N T S LDC-3916 Front Panel Controls ........11 Display Controls .
- Page 6 TA B L E O F C O N T E N T S Chapter 4 Command Reference LDC-3916 Device-Dependent Commands ......44 Device-Dependent Command Reference .
- Page 7 TA B L E O F C O N T E N T S LDC-3916...
- Page 8 L I S T O F F I G U R E S IST OF IGURES Figure 1.1 Controller Front View ......5 Figure 1.2 Controller Rear View .
- Page 9 L I S T O F F I G U R E S Figure 3.1 GPIB Cable Connections ......28 Figure 3.2 GPIB Connector Diagram .
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Page 10: Safety And Warranty Information
AFETY AND ARRANTY NFORMATION The Safety and Warranty Information section provides details about cautionary symbols used in the manual, safety markings used on the instrument, and information about the Warranty including Customer Service contact information. Safety Information and the Manual Throughout this manual, you will see the words Caution and Warning indicating potentially dangerous or hazardous situations which, if not avoided, could result in death, serious or minor injury, or damage to the product. -
Page 11: Safety Marking Symbols
S A F E T Y S Y M B O L S AFETY YMBOLS This section describes the safety symbols and classifications. Technical specifications including electrical ratings and weight are included within the manual. See the Table of Contents to locate the specifications and other product information. The following classifications are standard across all ILX Lightwave products: •... - Page 12 WA R R A N T Y ARRANTY ILX LIGHTWAVE CORPORATION warrants this instrument to be free from defects in material and workmanship for a period of one year from date of shipment. During the warranty period, ILX will repair or replace the unit, at our option, without charge. Limitations This warranty does not apply to fuses, lamps, defects caused by abuse, modifications, or to use of the product for which it was not intended.
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Page 13: Comments, Suggestions, And Problems
WA R R A N T Y Comments, Suggestions, and Problems To ensure that you get the most out of your ILX Lightwave product, we ask that you direct any product operation or service related questions or comments to ILX Lightwave Customer Support. - Page 14 WA R R A N T Y When you contact us, please have the following information: Model Number: Serial Number: End-user Name: Company: Phone: Fax: Description of what is connected to the ILX Lightwave instrument: Description of the problem: If ILX Lightwave determines that a return to the factory is necessary, you are issued a Return Authorization (RA) number.
- Page 15 WA R R A N T Y LDC-3916...
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Page 16: Chapter 1 Introduction
C H A P T E R NTRODUCTION This chapter is an introduction to the LDC-3916 Laser Diode Controller. It contains unpacking information, instructions on how to install and apply power, and safety considerations. It also contains some maintenance information, specifications, and a list of options and accessories. -
Page 17: Initial Inspection
I N T R O D U C T I O N C H A P T E R Product Overview Initial Inspection When you receive your LDC-3916 Controller, verify that the following items were shipped with the instrument: • LDC-3916 Laser Diode Controller •... -
Page 18: Installing The Ldc-3916 Laser Diode Controller
I N T R O D U C T I O N C H A P T E R Installing the LDC-3916 Laser Diode Controller Installing the LDC-3916 Laser Diode Controller This section provides information about the necessary requirements to install the LDC-3916 and how to begin operating the instrument. -
Page 19: The Gpib Address
I N T R O D U C T I O N C H A P T E R Installing the LDC-3916 Laser Diode Controller A total of 15 devices can be connected together on the same GPIB interface bus. The cables have single male/female connectors on each end so that several cables can be stacked. -
Page 20: Ldc-3916 Orientation
I N T R O D U C T I O N C H A P T E R Installing the LDC-3916 Laser Diode Controller LDC-3916 Orientation Now that the LDC-3916 Laser Diode Controller is installed and ready for use, you are ready to learn about its operation. -
Page 21: Figure 1.2 Controller Rear View
I N T R O D U C T I O N C H A P T E R Installing the LDC-3916 Laser Diode Controller Modulation Input 15−pin TEC GPIB Connector Channel 1 BNC Connector Connector Channel 16 Power Cord Connector 9−pin LD RS−232 B Inactive... -
Page 22: Specifications
I N T R O D U C T I O N C H A P T E R Specifications Specifications Table 1.1 General Specifications Specification Description Chassis Ground 4mm banana jack GPIB Connector 24-pin IEEE-488 RS-232 Connector 9-pin D-sub Modulation Connector Power Requirements 50-60 Hz;... -
Page 23: Modules And Accessories
I N T R O D U C T I O N C H A P T E R Specifications Modules and Accessories Modules and accessories available for the LDC-3916 Laser Diode Controller include the following: Table 1.2 Options and Accessories DESCRIPTION MODEL NUMBER 16-Channel Laser Diode Controller Mainframe... -
Page 24: Chapter 2 Operations
C H A P T E R PERATIONS This chapter introduces you to the operation of the LDC-3916 sixteen-channel laser diode controller. It offers instructions for connecting your laser to the current source and temperature controller modules and describes powering up the instrument. -
Page 25: The Power On State
O P E R A T I O N S C H A P T E R Applying Power to Your Laser Diode Controller Figure 2.1 Initialization Screen The Power On State The instrument is configured to the state it was in when power was last shut off and according to the type of module in each bay (either a 500 mA or 1A combination module). -
Page 26: Ldc-3916 Front Panel Controls
O P E R A T I O N S C H A P T E R LDC-3916 Front Panel Controls LDC-3916 Front Panel Controls All key operating parameters for the LAS (laser) and TEC modules can be set, adjusted, and displayed through established menus. (See the respective module manual for further information on each module.) Display Controls All key operating parameters for the LAS (laser) and TEC modules can be set,... -
Page 27: Adjust Controls
O P E R A T I O N S C H A P T E R LDC-3916 Front Panel Controls another menu or to change/edit a parameter. For example, in the LAS section of the Chnl menu, the word "On" designates the state of the output. Depressing the associated soft key will change the state from On to Off. - Page 28 O P E R A T I O N S C H A P T E R LDC-3916 Front Panel Controls Arrow Keys The two Adjust Up/Down Arrow keys also can be used to adjust values on any of the screens where a numeric value is required. Holding down either of the keys will increase or decrease the number via a simple time-based acceleration algorithm.
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Page 29: Using The Ldc-3916 Menu Structure
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure Using the LDC-3916 Menu Structure This section describes the menus, how they are structured, and how to navigate through them. -
Page 30: System Configuration
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure Figure 2.5 Channel Menu System Configuration The System Configuration menu is accessed from the Main menu. Pressing the appropriate soft key provides access to: •... -
Page 31: Display Configuration
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure Figure 2.7 Communications Configuration Menu Display Configuration If you intend to operate your LDC-3916 LD Controller remotely via GPIB (General Purpose Information Bus) or through a serial RS-232 link, selecting Comm from the System Configuration menu accesses the Config. -
Page 32: Calibration
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure If there is a problem with the graphic display, a display self-test can be initiated from this menu. After selecting the Display Test function using the hard keys, use either the Adjust Knob or the Adjust Up/Down Arrow keys to display the word, "Yes". -
Page 33: Save And Recall
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure For specific calibration information see the Service Reference section of your LDC-3916372 or LDC-3916374 module instruction manual. Figure 2.9 Calibration Menu Save and Recall The Save and Recall feature is useful for applications in which you may need to alternate between particular instrument configurations. -
Page 34: All Channel Menu
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure To recall an instrument setup, select the desired bin number as above and press the Recall soft key. To restore the instrument default settings from the factory, simply press the Default soft key. -
Page 35: Setting All Tec
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure protection forward voltage limit to 3.1V. Again arrow down to Mode and, using the Adjust Knob or Adjust Up/Down Arrow keys, select Ilbw (for Low bandwidth mode, i.e. -
Page 36: Status Menu
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure outputs with the On soft key. Now all channels are controlling the temperature of your laser to 25 Figure 2.14 All TEC Menu page 2 Status Menu The Status menu provides summary information on individual module status. -
Page 37: Figure 2.16 Summary Screen
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure Figure 2.16 Summary Screen Pressing the Status soft key while in the Status menu displays the Status page. This page provides the user with instant access to multiple channel status information as outlined above. -
Page 38: Modulating The Controller Laser Current Sources
O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure display the photo diode monitor current on the second line as well as the laser diode current on the first line. See your module instruction manual for more information. - Page 39 O P E R A T I O N S C H A P T E R Using the LDC-3916 Menu Structure Set the LDC-3916372 module in Constant Current High Bandwidth Mode by selecting IHBW in the LAS menu on the front panel. Set the current to 50 mA and set the current limit for the LDC-3916372 as desired.
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Page 40: Operating In Remote Control
C H A P T E R PERATING EMOTE ONTROL GPIB (General Purpose Interface Bus) is the common name for ANSI/IEEE Standard 488.2-1987, an industry standard for interconnecting test instruments in a system. Everything you can do from the front panel can also be done remotely, and in some cases, with more flexibility. -
Page 41: Figure 3.1 Gpib Cable Connections
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R GPIB Configuration When the controller is a computer, it often also designates itself as a listener so it can collect data from designated talkers. -
Page 42: Figure 3.2 Gpib Connector Diagram
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R GPIB Configuration Five interface management lines control the flow of information: •... -
Page 43: Rs-232 Configuration
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R GPIB Configuration RS-232 Configuration The instrument's baud rate setting must match the baud rate used by the serial RS-232 interface, which is typically a serial COMM port on your PC. -
Page 44: Gpib Versus Rs-232 Communications
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R GPIB Configuration GPIB Versus RS-232 Communications The LDC-3916 should not be run remotely via GPIB and RS-232 at the same time. -
Page 45: Laser Diode Controller Command Set
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Laser Diode Controller Command Set Laser Diode Controller Command Set This section contains information about the LDC-3916's mainframe command set, command syntax, and error and status registers. -
Page 46: Terminators
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Laser Diode Controller Command Set A query has no space between the mnemonic and the question mark. For example: Okay Not Okay... - Page 47 O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Laser Diode Controller Command Set "floating point", and "scientific notation". For example the number "twenty" may be represented by any of the following ASCII strings: Integer Floating point...
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Page 48: Syntax Summary
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Laser Diode Controller Command Set Command Tree Structure The LDC-3916 commands require the full path notation. (root) Commands Generic Module Commands... -
Page 49: Ieee 488.2 Common Commands
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Laser Diode Controller Command Set terminator. Many computers terminate with <CR> <NL> <^END> (Carriage Return - New Line - EOI). -
Page 50: Ldc-3916 Controller-Specific Commands
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Status Reporting mainframe, *TST? will return "0", and those modules will no longer be recognized by the system. -
Page 51: Operation Complete Definition
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Status Reporting Likewise, the ALLCOND register is used to report conditions which occur during the operation of the LDC-3916, and which are enabled to be passed on to the status byte. -
Page 52: Figure 3.4 Status Reporting Schematic Diagram
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Status Reporting Standard Event Status − Channel 1 *ESR? Condition Status Summary Register −... -
Page 53: Command Timing
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Status Reporting Command Timing This section describes, for each device-dependent command, whether that command is performed in an overlapped or sequential manner. -
Page 54: Error Messages
O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Error Messages Error Messages In the event of a hardware error condition, error messages are displayed on the channel menu screens. - Page 55 O P E R A T I N G I N R E M O T E C O N T R O L C H A P T E R Error Messages Table 3.4 Mainframe Error Codes Error Code Explanation E-228 String delimiter not found.
- Page 56 C H A P T E R OMMAND EFERENCE This chapter is a guide to all of the mainframe device-dependent commands for the LDC-3916 Laser Diode Controller. The chapter is divided into two parts. The first contains an overview of the remote commands used by the LDC-3916, as shown in Table 4.1.
- Page 57 C O M M A N D R E F E R E N C E C H A P T E R LDC-3916 Device-Dependent Commands LDC-3916 Device-Dependent Commands Table 4.1 Device-Dependent Commands Name Parameters Function NONE Returns the summary of all 16 channels' condition bits which ALLCOND? are further summarized in the Status Byte.
- Page 58 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference Device-Dependent Command Reference This section presents the mainframe device-dependent commands for both local and remote operation of the LDC-3916 Laser Diode Controller, listed in alphabetical order.
- Page 59 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference "TEC:ENAB:COND". Refer to the appropriate module instruction manual for details on each specific module. Examples "ALLCOND?"...
- Page 60 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference BEEP RONT ANEL EMOTE The BEEP command controls the LDC-3916 Laser Diode Controller's beeper. The beeper can be used to signal error or warning conditions.
- Page 61 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference CHANnel RONT ANEL EMOTE The CHANnel command selects the modules that will receive subsequent channel-based commands.
- Page 62 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference feature works well with the *RCL (recall) command as a means of verifying a stored setup.
- Page 63 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference MENU RONT ANEL EMOTE The MENU command causes the front panel display to switch to the. Parameters An <nrf value>...
- Page 64 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference MODERR? RONT ANEL EMOTE The MODERR? query returns a list of "module" device and command errors. The "module"...
- Page 65 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference RADix RONT ANEL EMOTE The RADix command allows the programmer to select the radix type for status, condition, and event query response data.
- Page 66 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference changed only at the factory, and therefore the SECURE command is not needed by the user. SCRoll RONT ANEL...
- Page 67 C O M M A N D R E F E R E N C E C H A P T E R Device-Dependent Command Reference TERM? RONT ANEL EMOTE The TERM? query allows the programmer to determine whether the default (IEEE488.2 standard) terminator has been altered to include a carriage return.
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