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Agilent Technologies Agilent 86120C The following line is an example of a returned string when

Models: Agilent 86120C

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Programming Commands

Measurement Instructions

	DEFault	The current marker position
<resolution>	MAXimum	0.01 resolution (fast update)
Constants	MINimum	0.001 resolution (normal)
	MINimum	0.001 resolution (normal)
	DEFault	Current resolution
Examples	:CONF:ARR:POW:FREQ DEF, MIN
	:FETC:ARR:POW:FREQ? DEF, MAX
	:READ:ARR:POW:FREQ?
	:MEAS:ARR:POW:FREQ?
	:CONF:SCAL:POW:FREQ 230.8THZ, MAX
	:FETC:SCAL:POW:FREQ? 230.8THZ, MIN
	:READ:SCAL:POW:FREQ? 230.8THZ
	:MEAS:SCAL:POW:FREQ? 230.8THZ
Query Response	The following line is an example of a returned string when
	:MEAS:SCAL:POW:FREQ? MAX is sent:
	+1.94055176E+014

If six laser lines are located and :MEAS:ARR:POW:FREQ? is sent, the following string is an example of the returned data. Notice that the first returned number indicates the number of laser- line values returned in the query.

6,+1.94055100E+014,+1.93854100E+014,+1.93653000E+014,+1.93452000E+014,+1.93250900E+0

14,+1.93050000E+014

4-20

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Agilent Technologies Agilent 86120C manual The following line is an example of a returned string when

Contents

Agilent 86120C Multi-Wavelength Meter User’s Guide Notices angled physical contact interface The Agilent 86120C-At a GlanceCharacterize laser lines easily “Programming” and Chapter 4, “Programming Commands” provide all must not be exceededPrint measurement results Program the instrument for automatic measurementsMeasurement accuracy-it’s up to you The Agilent 86120C-At a GlanceGeneral Safety Considerations There is no output laser apertureWA R N I N G WA R N I N G WA R N I N G WA R N I N G WA R N I N G C A U T I O N C A U T I O N C A U T I O N C A U T I O N C A U T I O N Contents The Agilent 86120C-At a Glance General Safety ConsiderationsStep 2. Connect the Line-Power Cable 5 Step 3. Connect a Printer Returning the Instrument for ServiceLaser Safety Information Instrument Preset ConditionsFETCh Measurement Instruction 79 HCOPy Subsystem Test 1. Absolute Wavelength Accuracy 3 Test 2. SensitivityMenu Maps Error Messages Front-Panel Fiber-Optic Adapters Power Cords Agilent Technologies Service OfficesContents Contents-3Page Getting Started Step 1. Inspect the ShipmentGetting Started C A U T I O N C A U T I O N C A U T I O N C A U T I O NMeasurement accuracy-it’s up to you Getting StartedStep 1. Inspect the Shipment Step 1. Inspect the ShipmentWA R N I N G Step 2. Connect the Line- Power CableC A U T I O N C A U T I O N C A U T I O N Step 3. Connect a Printer page 7Step 4. Turn on the Agilent 86120C Instrument firmware versionStep 5. Enter Your Elevation Converting feet to metersStep 6. Select Medium for Wavelength Values Definition of standard airStep 7. Turn Off Wavelength Limiting Returning the Instrument for Service Preparing the instrument for shipping C A U T I O N C A U T I O NThe carton must be large enough to allow approximately 7 cm Getting Started Returning the Instrument for Service1-14 Getting Started Returning the Instrument for Service1-15 Page Measuring Wavelength and Power Measuring Signal- to- Noise RatiosMeasuring Signal- to- Noise Ratios with Averaging Measuring Total Power Greater than 10 dBmMaking Measurements Agilent 86120C, refer to “Calibrating Measurements” on page 2Measuring Wavelength and Power Peak WL mode 2 List by WL or Power modes 2Total power and average wavelength 2 Graphical display of optical power spectrum 2 Instrument states 2To display peak wavelength and power Peak WL mode3 To move the cursor to view other signals, press PEAK to signal with greatest powerPREV PK to select next lower power signal NEXT PK to select next higher power signalList by WL or Power modes To display multiple laser linesTotal power and average wavelength To display average wavelength and total power Limiting the wavelength measurement rangeTo limit the wavelength range n is the number of laser lines included in the measurementMeasuring broadband devices and chirped lasers To measure broadband devicesGraphical display of optical power spectrum To see the graphical displayPower bar To control the power barInstrument states To save an instrument stateChanging the Units and Measurement Rate Displayed unitsTo change the units of measure Displayed units 2 Measurement rateMeasurement rate To change the measurement speed Continuous or single measurementsTo select single measurement acquisition Defining Laser- Line Peaks To define laser- line peaks If too many lines are identified Channel separation 2 Measuring flatness 2 Measuring Laser SeparationThis section includes Channel separation To measure channel separation Measuring flatness To measure flatnessMeasuring Laser Drift Measuring Laser DriftTo measure drift If measurement updating stops or the values become blankedDuring the measurement, you can change the display mode to Peak WL Measuring Signal- to- Noise Ratios Signal-to-noise displayAutomatic When the signal- to- noise “auto” function is selected, the Automatic interpolation Repetitive data formatsTo measure signal- to- noise Measuring Signal- to- Noise Ratios with Averaging To measure signal- to- noise with averaging Measuring Fabry- Perot FP Lasers To characterize a Fabry- Perot laserΣ Pi The summation of the power in each of the selected peaks, or Measuring Modulated Lasers Measuring Modulated LasersPRBS modulation graph showing raised noise floor Measuring Total Power Greater than 10 dBm To measure total power exceeding 10 dBmCalibrating Measurements Definition of standard airTo select the medium for light To enter the elevationConverting feet to meters Printing Measurement Results To create a hardcopyCleaning Connections for Accurate Measurements Choosing the Right ConnectorFigure 2-3. Basic components of a connector Figure 2-5. Cross-section of the Diamond HMS-10 connector Figure 2-4. Universal adapters to Diamond HMS-10Inspecting Connectors Avoid matching gel and oils Avoid over tightening connections Measuring insertion loss and return loss Cleaning Connectors Visual inspection of fiber endsTo clean a non- lensed connector manufacturer for information on application and cleaning proceduresthink the use of such compounds is necessary, refer to the compound leave filmy deposits on fiber ends that can degrade performanceTo clean an adapter compressed air canister2 Clean the adapter with the foam swab Lists of Commands 3 ProgrammingAddressing and Initializing the Instrument 3 Making MeasurementsTypes of commands Where to begin…Programming Remote mode and front- panel lockout Addressing and Initializing the InstrumentInitialize the instrument at start of every program To change the GPIB address Set single acquisition modeMaking Measurements After collecting the uncorrected data, the Agilent 86120C searches the data for the first 200 peak responses. For WLIMitOFF, searching starts at 1650 nm and progresses towards 1270 nm. For WLIMitON, searching starts at WLIMitSTART and progresses toward WLIMitSTOP. These peak values are then placed into the corrected data buffer. Each peak value consists of an amplitude and wavelength measurement. Amplitude and wavelength correction factors are applied to this data Commands are grouped in subsystems Table 2-4. Commands for Capturing Data Making MeasurementsRefer to “FPERotSTATE” on pageMEASure command Measurement instructions give quick resultsREAD command FETCh commandCONFigure command Return single or multiple measurement valuesARRay and the SCPI standard Or, the *WAI command could be used Measure delta, drift, and signal- to- noise The format of returned data Measurements are returned as stringsDetermine the number of data points Data can be corrected for elevation and vacuumMonitoring the Instrument Monitoring the InstrumentStatus registers Status Byte registerMonitoring the Instrument Programming3-18 OPERation Status and QUEStionable Status registers Table 3-6. Bits in Operation Status RegisterStandard Event Status register Enabling register bits with masks Queues Error queueOutput queue SCPI command are grouped in subsystems Sending a commandReviewing SCPI Syntax Rules Use either short or long formsCombine commands in the same subsystem You can use upper or lowercase lettersCombine commands from different subsystems Sending common commandsAdding parameters to a command White space0.28E2 280E-1 28000m 0.028K 28E-3K Table 3-9. Suffix MultipliersMultiplier MnemonicProgram message terminator Querying dataErrormsg subroutine Example ProgramsMany subroutines are repeated in the examples Setese subroutineFNIdentity function Errmngmt subroutineCmdopc subroutine Tempo subroutineExample 1. Measure a DFB laser COM /Instrument/ @Mwm DIM Errmsg$255 INTEGER Cme CLEAR REPEATOUTPUT @Mwm*ESR? ENTER @MwmCme OUTPUT @MwmSYSTERR? ENTER @MwmErrmsg$ PRINT Errmsg$Example Programs COM /Instrument/ @MwmV DIM Identity$50 Identity$= OUTPUT @Mwm*RSTOUTPUT @Mwm*OPC? ENTER @MwmOpcdone OUTPUT @Mwm*IDN? ENTER @MwmIdentity$ RETURN Identity$Example 2. Measure WDM channels Example ProgramsExample Programs PRINT Errmsg$UNTIL NOT BITCme,2 AND NOT BITCme,4 AND NOT BITCme,5 AND Err$,+0 COM /Instrument/ @Mwm OUTPUT @Mwm *ESEIVAL00110100,2Example 3. Measure WDM channel drift Turn on the drift calculationTurn off all drift states Turn on drift reference stateQuery reference wavelengths and powers Example ProgramsTurn off drift reference state Turn on drift max min calculationProgramming Example ProgramsSubendSUBEND SeteseSUB Setese SUBEND IdentityDEF FNIdentity$Example 4. Measure WDM channel separation PRINT USING 6A,2D,17A,M4D.3D,31A,S2D.2D,4ALine I wavelength isExample Programs Example 5. Measure signal- to- noise ratio of each WDM channel Example ProgramsNEXT STOP Errormsg ProgrammingExample Programs FOR I=1 TO NbptExample 6. Increase a source’s wavelength accuracy Example Programs OUTPUT @MwmMEASSCALPOWWAV? ENTER @MwmCurrentwlTable 3-10. Programming Commands 1 of Lists of CommandsLists of Commands Table 3-10. Programming Commands 2 of Lists of CommandsTable 3-10. Programming Commands 3 of Lists of CommandsTable 3-10. Programming Commands 4 of Lists of CommandsLists of Commands Table 3-10. Programming Commands 5 ofLists of Commands Table 3-11. Keys Versus Commands 1 of∆ WL Table 3-11. Keys Versus Commands 2 of Lists of CommandsProgramming Lists of Commands3-50 Programming Commands Common Commands 4 Measurement Instructions 4 CALCulate1 Subsystem 4CONFigure Measurement Instruction 4 DISPlay Subsystem 4 CALCulate2 Subsystem 4 CALCulate3 Subsystem 4Table 4-12. Notation Conventions and Definitions Programming CommandsProgramming Commands Common Commands Query Response ExampleESR? Syntax*ESR?Query Response ExampleIDN? Page Syntax*RST Table 4-15. Conditions Set by *RST Reset 2 of Page In this example, the command enables ESB event summary bit 5 in the status byte register to generate a service requestCommon Commands Query ResponseSTB? TST? Syntax*WAI Measurement Instructions Measurement InstructionsPOWer? FREQuency? WAVelength? WNUMber? The commands in this subsystem have the following command hierar- chyMEASure READ? FETCh? CONFigure? ARRay SCALar Measurement InstructionsMEASureARRay SCALar POWer? CONFigure commandExamples CONFARRPOW FETCARRPOW? READARRPOW? MEASARRPOW? MEASureARRay SCALar POWerFREQuen- cy? CONFigure commandThe following line is an example of a returned string when MEASureARRay SCALar POWerWAVe- length? CONFigure commandresolution ConstantsExamples Query ResponseMEASureARRay SCALar POWerWNUMber? CONFigure commandSyntax expectedvalue MAXimumIf the MEASSCALPOWWNUM? 6451 command is sent, and a CALCulate1 Subsystem FREQuency POINtsDATA? tions” on page 4or, 1557.137 nm in vacuum CALCulate1 Subsystem TRANsformFREQuencyPOINts Non-sequential commandthat is located in “Making Measurements” on page 3- 5 . Changing the For normal update For fast update+15,047 +7,525CALCulate2 Subsystem STATeSTATe STARt FREQuency WAVelength WNUMber STOP FREQuency WAVelength WNUMbercompleted. If CALC2PWAVSTAT is on, the total input power is DATA?Queries the array of laser-line frequencies after the peak search is Queries the array of laser-line wavelengths after the peak searchPEXCursion SyntaxAttribute SummaryPOINts? PTHResholdNon-sequential command Syntax“Defining Laser- Line Peaks” on page 2 PWAVerageSTATeNon-sequential command CALCulate2 Subsystem WLIMitSTATe Non-sequential commandSyntax AttributeWLIMitSTARtFREQuency Non-sequential commandWLIMitSTARtWAVelength Non-sequential commandSyntax AttributeWLIMitSTARtWNUMber Non-sequential commandSyntax AttributeWLIMitSTOPFREQuency Non-sequential commandSyntax AttributeWLIMitSTOPWAVelength Non-sequential commandSyntax AttributeWLIMitSTOPWNUMber Non-sequential commandSyntax AttributeCALCulate3 Subsystem WAVelength? FREQuency? WNUMber? POWer? POWer WAVelength? FREQuency? STATE FWHM WAVelength? FREQuency? WNUMber? MEAN WAVelength?FREQuency? WNUMber? MODE WAVelength? FREQuency? WNUMber? PEAK WNUMber? SIGMa WAVelength? FREQuency? WNUMber?ASNRCLEar SyntaxAttribute SummaryASNRCOUNt SyntaxAttribute SummaryASNRSTATe tion on selecting measurementsDATA? Queries the array of laser-line frequencies after the calculation isQueries the array of laser-line wavelengths after the calculation is Queries the array of laser-line wave numbers after the calculationDELTaPOWerSTATe DELTaPRESetSyntax AttributeDELTaREFerencePOWer? DELTaREFerenceFREQuencyDescription 181.6924 THzDELTaREFerenceWAVelength SyntaxAttribute SummaryDELTaREFerenceWNUMber SyntaxAttribute SummaryDELTaWAVelengthSTATe SyntaxAttribute SummaryDELTaWPOWerSTATe DRIFtDIFFerenceSTATe SyntaxAttribute SummaryDRIFtMAXimumSTATe SyntaxAttribute SummaryDRIFtMINimumSTATe SyntaxAttribute SummaryDRIFtPRESet DRIFtREFerenceRESetSyntax AttributeDRIFtREFerenceSTATe SyntaxAttribute SummaryDRIFtSTATe SyntaxAttribute SummaryFPERotSTATE FPERotFWHM?+5.47128800E-009 +6.93436400E+011FPERotMEAN? +1.53878000E-006+1.94824800E+014 +6.49865400E+003FPERotMODESPACing? ArgumentDescription WAVelengthFPERotPEAK? +1.54073400E-006+1.94577600E+014 +6.49041000E+003FPERotPOWer? WATTsdBm DBM watts WATTsFPERotSIGMa? ArgumentDescription WAVelengthPRESet POINts?Syntax AttributeSNRAUTO SyntaxAttribute SummarySNRREFerenceFREQuency SyntaxAttribute SummarySNRREFerenceWAVelength SyntaxAttribute SummarySNRREFerenceWNUMber SyntaxAttribute SummaryTurns the signal- to- noise calculation on and off Preset State offSNRSTATe RST State offCONFigure Measurement Instruction CONFigure Measurement InstructionDISPlay Subsystem MAXimum LEFT NEXT PREVious RIGHtGRAPhics STATe DISPlay SubsystemMARKerMAXimum MARKerMAXimumLEFTSyntax AttributeMARKerMAXimumNEXT MARKerMAXimumPREViousSyntax AttributeMARKerMAXimumRIGHt WINDowGRAPhicsSTATeSyntax AttributeFETCh Measurement Instruction FETCh Measurement InstructionHCOPy Subsystem IMMediateMEASure Measurement Instruction MEASure Measurement InstructionREAD Measurement Instruction READ Measurement InstructionSENSe Subsystem DEVice ELEVations MEDium OFFSet MAGNitudeSENSe CORRection DATA?CORRectionDEVice page 4CORRectionELEVation 0DescriptionNon-sequential command SyntaxCORRectionMEDium SyntaxAttribute SummaryCORRectionOFFSetMAGNitude SyntaxAttribute Summaryment of an instrument function. Refer to “Measurement Instructions” on pageDATA? for 30 or 40 secondsQuery Response The following string shows an example of the first few measurements returned by this query STATus Subsystem STATus Subsystempage 3 OPERation QUEStionableCONDition?STATus Subsystem OPERation QUEStionableENABle SyntaxAttribute SummaryOPERation QUEStionableEVENt SyntaxQuery Response AttributeOPERation QUEStionableNTRansition SyntaxAttribute SummaryOPERation QUEStionablePTRansition SyntaxAttribute SummaryTable 4-18. Preset Values PRESetHEADers? SYSTem SubsystemSYSTem Subsystem ERRor SyntaxAttribute SummaryHELPHEADers? SyntaxAttribute SummaryPRESet Table 4-19. Instrument Conditions 1 ofSYSTem Subsystem Table 4-19. Instrument Conditions 2 of SYSTem SubsystemTable 4-20. SCPI Version Numbers VERSionSYSTem Subsystem TRIGger Subsystem TRIGger SubsystemABORt SyntaxAttribute SummaryINITiateCONTinuous Non-sequential commandSyntax AttributeINITiateIMMediate Non-sequential commandSyntax AttributeUNIT Subsystem POWerUNIT Subsystem UNIT Subsystem Programming Commands4-108 Performance Tests Test 1. Absolute Wavelength AccuracyTest Sensitivity 5Performance Tests Calibration CycleTest 1. Absolute Wavelength Accuracy 5 Testbe damaged when total input power exceeds 18 dBm Test 1. Absolute Wavelength AccuracyTest 2. Sensitivity be damaged when total input power exceeds 18 dBmTest 3. Polarization Dependence be damaged when total input power exceeds 18 dBmProcedure Standard instruments flat contacting connectors Test 4. Optical Input Return LossProcedure Option 022 instruments angled contacting connectors and Regulatory Information”FC/APC patchcord loss Test 4. Optical Input Return LossPolarization sensitivity Test 5. Amplitude Accuracy and LinearityProcedure completely filled in Table 5-21. Linearity Data Values Desired PowerPower Meter Test 5. Amplitude Accuracy and LinearityPage Laser Safety Information 6 Specifications and Regulatory InformationProduct Overview Specifications and Regulatory Information Specifications and Regulatory InformationCalibration Cycle the wavelength difference between two signals that are simultaneously Definition of Termsduring manufacturing at 1523.488 nm, or 196.7804 THz presentthe polarization of the input signal is varied powerlaser lines present to accurately measure wavelength and power panel connector, and assumes the user’s connector is goodSpecifications-NORMAL Update Mode WavelengthSpecifications-NORMAL Update Mode 10 GHz 0.08 nm at 1550 nm, 0.06 nm at 1300 nmAmplitude SensitivitySelectivity Specifications-NORMAL Update ModeInput Return Loss Measurement Cycle TimeMeasurement Applications Specifications-NORMAL Update ModeSpecifications-FAST Update Mode FAST update mode unless noted. Refer to “Measurement rate” on page 2Specifications-FAST Update Mode WavelengthSpecifications-FAST Update Mode AmplitudeSensitivity SelectivitySpecifications-FAST Update Mode Input Return LossMeasurement Cycle Time Measurement ApplicationsOperating Specifications Operating SpecificationsOperating Specifications Laser Safety Information Please pay attention to the following laser safety warningsCompliance with Canadian EMC Requirements This ISM device complies with Canadian ICES-001Cet appareil ISM est conforme à la norme NMB-001 du Canada Notice for Germany Noise DeclarationDeclaration of Conformity Declaration of ConformityFront view of instrument Rear view of instrument Product OverviewProduct Overview Product Overview Specifications and Regulatory Information6-16 Instrument Preset Conditions Error MessagesAgilent Technologies Service Offices ReferenceInstrument Preset Conditions Table 5-22. Instrument Preset Conditions 1 ofSettings after Preset Settings after PowerTable 5-22. Instrument Preset Conditions 2 of Settings after PowerInstrument Preset Conditions Settings after PresetMenu Maps Menu MapsAppl’s Menu Menu MapsDisplay List by Power Menu Display Avg WL MenuMeasurement Cont Menu There is no menu associated with this keyDisplay List by WL Menu Delta On Menu Menu MapsDelta Off Menu Display Peak WL and System Preset Menus Measurement Single MenuThere is no menu associated with this key Menu MapsSystem Print Menu Menu MapsSystem Setup Menu Menu MapsError Messages Table 5-23. Instrument Specific Error Messages 1 ofTable 5-23. Instrument Specific Error Messages 2 of Error MessagesError Number Error MessageTable 5-23. Instrument Specific Error Messages 3 of Error MessagesError Number Error MessageTable 5-24. General SCPI Error Messages 1 of Error MessagesError Number DescriptionTable 5-24. General SCPI Error Messages 2 of Error MessagesError Number DescriptionTable 5-24. General SCPI Error Messages 3 of Error MessagesError Number DescriptionFront-Panel Fiber-Optic Adapters Front-Panel Fiber-Optic AdaptersFront Panel DescriptionPower Cords Agilent Technologies Service OfficesPower Cords Plug TypeAgilent Technologies Service Numbers Agilent Technologies Service OfficesPage Numerics IndexIndex Index Index-3Index Index-4Index Index-5Index Index-6Index Index-7Page Page  Agilent Technologies GmbH Printed in Germany August Agilent TechnologiesSecond edition, August 86120-90C03