Lightwave Communications LDX-3232 specification

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Lightwave Communications LDX-3232 manual

Contents

User’s Guide Page Table of Contents Remote Operation Command Reference Iv LDX-3232 List of Figures Vi LDX-3232 List of Tables Viii LDX-3232 Safety Information and the Manual General Safety Considerations Safety Symbols Safety Marking Symbols Warranty Claims for Shipping Damage Model Number Serial Number End-User Name Company Phone Fax Comments, Suggestions, and ProblemsDescription of the problem Xiv LDX-3232 Introduction and Specifications Product Overview Initial Inspection Installing Your LDX-3232 High Compliance Current SourceAC Line Power Requirements Grounding Requirements Gpib Address Gpib ConnectorTilt-Foot Adjustment Operating the LDX-3232 Precision Current Source LDX-3232 Front View Maintenance Specifications 13 µs 12 ms Type Pulse Width DelayTTL Available Options and Accessories Description Model Number Applying Power to Your LDX-3232 Power On Sequence Connecting to the Laser Power On State Common Laser Cathode Photodiode Anode Back Panel LD Connector Interlock Connections Grounding Considerations Setting the PD BiasPhotodiode Connections Display Operating a Laser in Constant Current I ModeFront Panel Operation Setting Up the Precision Current Source E R a T I O N Operating a Laser in Constant Power P Mode Entering Photodiode Responsivity Values Method to calculate the responsivity is suggested below Error Indicators LDX-3232 Error Indicators Error Indicators LDX-3232 Reading the Gpib Address Changing the Gpib Address Changing Operation from Local to Remote LDX-3232 Current Source Command SetCommand Syntax OFF OLD NEW True False SET Reset LASLDI? Command Paths LDX-3232 Command Path Structure IEEE488.2 Command Commands LIM LDX-3232 Frequently Used CommandsNone Operation Complete Definition Status ReportingEvent and Condition Registers LDX-3232 Status Reporting Schematic Diagram Disabled 10 N/A Enabled 11 N/A 12 N/A 13 N/A 14 N/A 15 N/A Output Off Register LASerENABleOUTOFF nrf LASerENABleOUTOFF? Command Timing and Completion Error Messages Error Code Classifications Response Message Mode Used to enter the laser current calibration mode Used to create a delay in the execution of furtherCommands Used to enter the laser voltage calibration mode Sets the enable register for Laser conditions Returns status of photodiode monitor power displayEnables Laser display to show parameter values Returns the value of the LAS conditions enable register Used to enable/disable the front panel modulation input Used to return the optical power from monitorUsed to set the constant optical power setpoint, if Or P optical power Returns the elapsed time since the timer was last reset Returns the status of the Term commandPowered up Used to return the Laser setpoint tolerance value LDX-3232 Device-Dependent Commands Command Description Format LDX-3232 Device-Dependent Command Reference Delay Calmd LAS Calpd ERRors?LASerCALMD Responsivity CAL PD parameter setting Syntax Diagram LASerCALMD? Calibration for that bandwidth Selected. This procedure is outlined in ChapterLASerCALLDI LDI LAS CAL LASerCALLDI?LASerCALLDV LAS CAL LDV LASerCALMDI True measured value. This procedure is outlined in ChapterLASerCALLDV? MDI LASerCALMDI?LASerCOND? LAS CAL IPD LASerDEC LAS DIS LASerDISplayLASerDISplay? LASDIS? Lasdisldi LASerDISplayLDILASerDISplayLDI? LDI LASerDISplayLDV? Voltage measurement Syntax DiagramLASerDISplayLDV LASDISLDV? LAS DIS MDI LASerDISplayMDILASerDISplayMDI? LAS DIS IPD PPD LASerDISplayMDPLASerDISplayMDP? LAS DIS MDP LAS DIS Param LASerDISplayPARAMLASerDISplaySET LAS DIS SET LASDISPLAYSET? LASerENABleCONDLASerDISplaySET? LAS Enab Cond LASerENABleCOND?Bit Action enables the Laser status event register so that LASerENABleEVEntAn nrf value whose sum represents the bits that are enabled Lasenabevent LASerENABleEVEnt? LAS Enab EVE LASerENABleOUTOFF LASerENABleOUTOFF? LAS Enab Outoff LASerEVEnt? LASerENABleEVEnt commandCommand while the condition status is constantly changing LAS EVE LASerINC Function for the Laser output LASerLDI? This measurement is updated approximately once every 600 msLASerLDI LAS LDI For LDV calibration LASerLDVLASerLDV? LAS LDV Limit in use depends on the Laser output range selection LASerLIMitI2LASerLIMitI2? LAS LIM LASerLIMitI4? Displayed, and then releasing the SET switchLASerLIMitI4 LASLIMI4? MDP LAS LIM LASerLIMitMDPLASerLIMitMDP? LASerLIMitV LASerLIMitV? MDI LAS IPD LASerMDILASerMDI? MDP P PD setpoint would be used LAS Mdln LASerMDLNLASerMDLN? MDP LAS LASerMDPLASerMDP? LASerMODE? LAS ModeLAS Mode Ihbw LASerMODEIHBW LASerMODEMDP LAS Mode MDPLASerMODEILBW Lasmodeilbw LAS OUT LASerOUTputLASerOUTput? LAS RAN LASerRANgeLASerRANge? LASRAN? LASerSETLDI? Where the response is the constant I setpoint value, in mA30 µA, for use in constant P mode with Calpd = LASerSETMDI? LASerSTEP Where the response is the constand PPD setpoint, in mWLASerSETMDP? 100 µA LASerTOLerance LASerTOLerance commandLASerSTEP? LAS TOL Second is the time window, in seconds LASerTOLerance?MESsage MES MESsage? RADix RAD Term 0 command is sent or the LDX-3232 is powered offRADix? Means hexadecimal, and OCT means octal Time LDX-3232 was last powered upTime clock is independent of the Timer clock Last TIMER? query is returned Since the last TIMER? query was issuedTimer Seconds since the last TIMER? query was issued Functions and Features Saving and Recalling from the Front Panel Using the Laser Compliance Voltage Adjustment Saving and Recalling Under Remote Operation Using the LDX-3232 Current Source’s Trigger Function LDX-3232 Rear Panel Modulating the Laser Current Source BNC Interlock Usage Example Modulating the Laser Current Source Functions and Features Calibration and Troubleshooting Calibration Overview DMM Description Manufacturer/Model SpecificationRecommended Equipment Range Local Calibration of the LDX-3232 Current SourceCurrent Source Calibration Current Limit IPD Current Calibration Set equal to zero Constant powerCAL PD IPD Setpoint 2000 mA Laser ModeLaser Forward Voltage Measurement Calibration Set to FS full scale of range Limit Gpib CommandRemote Calibration of the LDX-3232 Current Source Lasldi nrf value command IPD Setpoint Function State Gpib Command EEPROM, Lllll will be displayed on the display the laser Troubleshooting GuideGeneral Current source must be recalibrated Feature can be defeated via the Lasenableoutoff Command 101 Response Message