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PDL5 User Manual

PDL5-UM-00001 Rev 001

42

Contact Information

JGR Optics Inc.
160 Michael Cowpland Drive
Ottawa, Ontario, Canada
K2M 1P6

Phone: 613-599-1000
Fax: 613-599-1099
[email protected]
www.jgroptics.com

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Содержание PDL 5

Страница 1: ...PDL5 PDL IL BR Multimeter User Manual All information contained herein is believed to be accurate and is subject to change without notice No responsibility is assumed for its use JGR Optics Inc 2014 ...

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Страница 3: ...ETY MARKINGS ON THE UNIT 8 CLASSIFICATION 9 LASER SPECIFICATIONS 9 IMPORTANT SAFETY INFORMATION 9 Laser Hazards 9 Electrical Shock Hazards 10 GETTING STARTED 12 INITIAL INSPECTION 12 OPERATIONAL REQUIREMENTS 13 PRODUCT OVERVIEW 14 Front Panel and Key Description 14 Rear Panel 14 OPERATION 17 POWERING UP THE METER 17 BACKREFLECTION MEASUREMENTS 17 Set up for BR Measurements 18 Measuring BR0 18 Meas...

Страница 4: ...Over RS 232 33 Programming Over USB 33 MAINTENANCE AND TROUBLESHOOTING 35 MAINTENANCE 35 Cleaning the Unit 35 Cleaning the Connector Ends 35 Cleaning Jumper Connectors 36 TROUBLESHOOTING 37 Connector Issues 37 PDL5 Calibration Issues 37 Loss and Reflection issues 38 Long Cables for single mode model only 39 Laser Stability 39 Polarization Controller Issues 39 STORAGE AND SHIPPING 41 RETURNING INST...

Страница 5: ...ION OF ERROR NUMBERS 51 IEEE 488 2 COMMON COMMANDS AND THE SCPI COMMAND TREE 53 IEEE 488 2 Common Commands 53 SCPI Command Tree 54 DESCRIPTION OF INDIVIDUAL COMMANDS 56 IEEE 488 2 Common Commands 56 SCPI Commands 60 JGR Legacy Device Specific Commands 69 JGR Device Specific Command Description 70 ...

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Страница 7: ...rvoltage Category II under IEC 664 IEC 664 relates to impulse voltage levels and insulation coordination The particular category is defined as local level appliances portable equipment etc with smaller transient overvoltages than Installation Category Overvoltage Category III The unit falls in the Pollution Degree 2 category under IEC 1010 1 and CAN CSA C22 2 No 1010 1 The IEC standard on Safety R...

Страница 8: ...ent is subject to the EMC Directive in the European Union The EN61326 standard prescribes both emission and immunity requirements for laboratory measurement and control equipment This unit has undergone extensive testing according to the European Union Directive and Standards ...

Страница 9: ...he measurement of power i e IL from different connector types Figure 1 PDL5 PDL IL BR Multimeter An important feature of the PDL5 multimeter is the FC APC ultra low backreflection connector at its output port To test different connector types the user needs only to change the hybrid launch jumpers of which one side has a FC APC connector and the other connector type to be tested The connector s en...

Страница 10: ...m ILmin and maximum ILmax insertion losses as the PDL The PDL5 multimeter calculates the PDL and average loss ILavg analytically using the values in the first row of the Mueller matrix Although the PDL and average loss are displayed in decibels dB the average loss is the average transmission converted to decibels Thus the average loss of an ideal polarizer is 3 dB 10 log 0 5 Generally the minimum ...

Страница 11: ...lection measurements per second Loss and Power Measurement The PDL5 multimeter is equipped with a front panel InGaAs or Ge detector for relative power loss and absolute power measurements The meter is capable of storing the dark signal from the detector so that high accuracy measurements as low as 80dBm for an InGaAs detector and 60 dBm for Ge detector are possible When making power measurements t...

Страница 12: ...red by the PDL5 multimeter This variation typically shows up as noise or drift in the signal The internal light source is designed to have low coherence length typically less than 10 cm Thus interference effects are typically seen only between very closely spaced components such as non contacting connectors Key Features Ultra stable and accurate PDL IL ave Loss Backreflection measurements Up to 4 ...

Страница 13: ...ybrid test jumper 1 FC APC FC UPC hybrid calibrated jumper FC type detector adapter Detector cap MW3 Mandrel Wrap User Manual NIST traceable Calibation Certificate Optional Accessories Variety of detector adapters Remote head Measurement jumpers with various user selected connectors ...

Страница 14: ...1 below Observe all safety instructions that are associated with a symbol Table 1 Safety Symbols Laser radiation may be present Refer to the User Manual for instructions on handling and operating the unit safely Avoid looking into any ports near which this symbol appears Frame or chassis terminal for electrical grounding within the unit Protective conductor terminal for electrical grounding to the...

Страница 15: ...nistration FDA Center for Devices and Radiological Health CDRH Laser specifications are provided in Table 2 below Table 2 Specifications Parameter Single mode SM Wavelength 1310 1490 1550 or 1625 10 nm Class 1 Fiber Type SMF 28e 9 125 Maximum Accessible Emission Level 15 dBm Maximum Output Power 1 mW Class 1 Effective Numerical Aperture 0 20 Important Safety Information Laser Hazards Warning Never...

Страница 16: ...ord or any receptacle that is not equipped with this feature If using a voltage reducing autotransformer to power the unit ensure that the common terminal connects to the earthed pole of the power source Do not interrupt the protective earth grounding Such action can lead to a potential shock hazard that can result in serious personal injury Do not operate the unit if an interruption to the protec...

Страница 17: ...DL5 UM 00001 Rev 001 11 Some of the unit s capacitors can be charged even when the unit is not connected to the power source Do not perform any operating or maintenance procedure that is not described in the User Manual ...

Страница 18: ...spection report and a description of any customer requested information may be found in the calibration document envelope included with the instrument Initial Inspection Inspect the package and contents for signs of damage Ensure all contents are included PDL5 PDL IL BR Multimeter 1 AC power cord 1 FC APC FC UPC hybrid test jumper 1 FC APC FC UPC hybrid calibrated jumper 1 FC type detector adapter...

Страница 19: ...Keep the packaging Immediately notify JGR Optics and if necessary the carrier if the content of the shipment is incomplete if the unit or any of its components are damaged or defective or if the unit does not pass the initial inspection Operational Requirements In order for the unit to meet the warranted specifications the operating environment must meet the following conditions for altitude tempe...

Страница 20: ...standard measurement mode when the sources have stabilized Product Overview Front Panel and Key Description A front view of the PDL5 multimeter is shown on Figure 2 and a detailed description of keys and LEDs is provided in Table 5 on next page Note that the meter front panel will vary with model ordered Figure 2 Front of the Meter Rear Panel The back of the meter is shown in Figure 3 and the rear...

Страница 21: ...al PDL5 UM 00001 Rev 001 15 Table 4 Rear Panel Components Component Function RS 232C RS 232C serial interface port IEEE 488 GPIB GPIB IEEE 488 1 interface port LINE Power Input also contains the user replaceable fuse ...

Страница 22: ... light up to indicate that the function is on To restore the factory set BR0 value press the BR0 key again The key LED will turn off PWR PDL Used to switch to IL and PDL or Optical Power Measurement modes Press once to select IL and PDL measurement mode press a second time to select absolute power measurement REF Sets the reference power for relative power measurements and adjusts the BR offset si...

Страница 23: ...R measurements with the PDL5 require terminating the fiber at two different points The difference in the backreflection between the two termination points is then calculated and displayed By choosing the termination points before and after a DUT the backreflection of the DUT can be measured To perform BR measurements two terminations must be made Before the DUT for example on the BR5 meter side fo...

Страница 24: ...ect the required wavelength 8 Clean and connect the output connector of the measurement jumper to the detector adapter on the front of the meter 9 Press the REF key the offset value equal to twice the measured loss is briefly displayed A small dot on the bottom right of the LCD display is displayed to indicate that the meter is using the measured offset value to calculate the backreflection 10 To ...

Страница 25: ...Only Single Mode fiber termination is shown Please refer to the TERMINATION TECHNIQUES section for multimode fiber termination 1 Clean the output connector of the measurement jumper and the input connector of the DUT and mate the two Refer to the CLEANING CONNECTORS section for more information on page 36 2 Press the key to select the wavelength at which the measurement is to be made 3 Terminate t...

Страница 26: ...PDL5 User Manual PDL5 UM 00001 Rev 001 20 Figure 5 Measuring backreflection of a connector Figure 6 Measuring backreflection of a connectorized DUT Figure 7 Backreflection measurement area ...

Страница 27: ...d the DUT Note that if a BR0 value has already been stored it is required to press the BR0 button first to erase it and then press it again to store the new value Create a termination point on the pigtail after the DUT The meter now displays the backreflection of the DUT only Figure 8 Measuring BR Excluding Connector Backreflection Accuracy and Range The absolute accuracy of backreflection measure...

Страница 28: ...cy specifications are dependent upon the accuracy of the PDL5 meter calibration so a calibration verification needs to be performed periodically Refer to the CALIBRATION section on page 32 for more information Polarization Dependent Loss PDL Loss and Power Measurements Set Up for PDL Loss and Power Measurements To prepare the meter for PDL Loss and Power measurements 1 Follow the POWERING UP THE M...

Страница 29: ...e DUT loss or power measurement to be made see Figure 9 10 Pressing and holding the REF key will take a reference at each wavelength 11 Press the PWR PDL key again to set the meter to Absolute Power mode When in Absolute Power mode the meter displays Absolute Power at the bottom of the screen in contrast Relative Power is displayed during relative power mode 12 Press REF key to switch to relative ...

Страница 30: ...ent the last value stored is used Measuring Absolute Power In Absolute Power mode measurements are displayed in dBm To perform power measurement of a DUT make sure to perform the set up steps in the SET UP FOR PDL LOSS AND POWER MEASUREMENTS section on page 22 and then follow these steps 1 Press the PWR PDL key twice to set the meter to Power mode 2 Press the or key to select the required output p...

Страница 31: ...TS section on page 22 and then follow these steps 1 Leave the meter in Relative Power mode In this mode the meter displays RELATIVE POWER on the lower part of the LCD and the reading i e 0 15 dB is displayed on the top of the display 2 Press the or key to select the required output port 3 Press the key to select the wavelength at which the measurement is to be made 4 Clean the output connector of ...

Страница 32: ... once this mode is selected In this mode the meter displays ILa and PDL and the reading for each measurement i e 0 15 dB is displayed after the label 2 Press the or key to select the required output port 3 Press the key to select the wavelength at which the measurement is to be made 4 Clean the output connector of the measurement jumper and the input connector of the DUT and connect the two togeth...

Страница 33: ...ction on page 24 for the procedure NOTE The value of ID can change with temperature variations Termination Techniques Termination is a term to describe the action of blocking all backreflection beyond a point in a network of components The termination technique varies depending on the fiber type There are two main termination techniques Mandrel wrap consists of wrapping the fiber around a relative...

Страница 34: ...gh attenuation bends in the fiber bends with a relatively small radius remove all backreflection and can be made anywhere along the length of the cable Typical mandrel diameters will be as follow 13 mm for 1490 1550 1625 and 1650 nm 9 mm for 1310 nm with SMF 28 fiber 7 mm for 1310 nm with low bend sensitive SMF When measuring backreflection levels below 60 dB low attenuation bends bends with a rel...

Страница 35: ... 6 Navigating the User Menu Access each option by pressing the corresponding softkey to the right of the display Return to the main user menu at any time by pressing the MENU button For the Transmission RATE and GPIB ADDR options begin by selecting the option with the softkey and use the up down arrows to scroll through the numbers Press the softkey again to exit from this mode To exit and save ch...

Страница 36: ...Default ON Monitors and compensates for internal source drift SETUPviaLOSS ON OFF Default ON Adjusts the BR measurement by compensating for loss at the connector The measurement is taken during IL reference and offsets BR by twice this value PDL 6 State ON OFF Default ON Enables the 6 state Mueller matrix method In OFF mode 4 state matrix is used High Res ON OFF Default ON 3 decimal places in High...

Страница 37: ... mode ILa XX XX dB PDL XX XX dB ILa and PDL measurement mode P or BR is lower than the minimum measurable value P is greater than the maximum measurable value BR0 STORED XX X Displayed momentarily when the BR value XX XdB is being stored as BR0 Warning BR0 higher than normal Once changes are made the meter returns to the measurement mode All SetupViaLoss Displayed momentarily after a reference has...

Страница 38: ...ly when the laser power is too high SOURCE UNSTABLE Displayed momentarily when the laser power is unstable Calibration Caution Devices with malfunctioning lasers must be returned to the manufacturer for repair Calibration should be performed by a qualified Calibration Laboratory Power and Backreflection values of the PDL5 Multimeter are factory set and must be periodically adjusted to maintain per...

Страница 39: ...red properly The different options for the communication are contained in the User Menu Programming over GPIB The PDL5 multimeter supports the IEEE 488 1 1987 interface standard It also supports the mandated common commands of IEEE 488 2 1987 standard Before attempting to communicate with the meter over the GPIB interface the device address must be set The address is set by accessing the USER MENU...

Страница 40: ...DL5 UM 00001 Rev 001 34 Table 8 Serial Communication Settings Transmission Rate Selectable in the User Menu Available options are 1200 2400 4800 9600 19200 and 38400 bps Data bit 8 Parity N Stop bits 1 Flow Control None ...

Страница 41: ... a lint free tissue and alcohol before every mating See the CLEANING CONNECTORS section on page 36 2 Loosen the retaining screws of the connector panel and remove the panel carefully to access the internal connectors Figure 15 3 Remove the connector from the mating sleeve in the panel 4 Clean the connector end faces and mating sleeve in accordance with the CLEANING CONNECTORS Section on page 36 5 ...

Страница 42: ...t free swab and lint free towels Optical grade isopropyl alcohol or optical grade 200 ethanol do not use rubbing alcohol which contains 30 water To clean the connectors 1 Blow the sleeve with filtered compressed air 2 Apply optical grade isopropyl alcohol or optical grade ethanol to a small area of a lint free towel and rub the end of the ferrule over the wet area 3 Wipe the ferrule on a dry area ...

Страница 43: ...be polished Connector Loss and Backreflection Ensure that the insertion loss and backreflection of all the connectors are low and stable complying with the connector specifications PDL5 Calibration Issues To verify PDL5 calibration follow the procedure below If results are different than those indicated please contact JGR Optics to have your unit calibrated 1 Make sure to clean front panel connect...

Страница 44: ...affects the backreflection reading As light travels from the PDL5 Multimeter and returns it goes through the connectors twice so the effect of the losses is doubled If the insertion loss is close to 0 15 dB its effect is compensated automatically by the meter If the insertion loss differs substantially from 0 15 dB follow the measurement procedures described at the end of the LOSS AND POWER MEASUR...

Страница 45: ...ront connector panel clean the front panel connectors connect the internal FC APC connector to the detector adapter and press the Power key to set the meter to Power mode The reading must be steady and higher than 10 dBm If not perform the procedure recommended in Table 9 when this message is displayed Polarization Controller Issues If the waveplates can t be moved to 0 position on start up or the...

Страница 46: ... THE METER FOR BACKREFLECTION MEASUREMENTS section BR range is very limited Follow the setup and measurement techniques described in the SETTING UP THE METER FOR BACKREFLECTION MEASUREMENTS section TOO MUCH LIGHT Dark current ID value is too high Attach the detector cap to the detector and press the ID key LASER POWER LOW Laser power is too low Check the measurement setup for possible source of li...

Страница 47: ...l in the original shipping box and packing material If these are not available follow the guidelines below 1 Contact JGR Optics to obtain a RMA number 2 Cover the front panel with foam to prevent damage 3 Wrap the unit in anti static packaging Use anti static connector covers 4 Pack the unit in a strong enough shipping box considering the unit s weight 5 Use enough shock absorbing material 10 to 1...

Страница 48: ...5 User Manual PDL5 UM 00001 Rev 001 42 Contact Information JGR Optics Inc 160 Michael Cowpland Drive Ottawa Ontario Canada K2M 1P6 Phone 613 599 1000 Fax 613 599 1099 sales jgroptics com www jgroptics com ...

Страница 49: ...r Manual PDL5 UM 00001 Rev 001 43 A SPECIFICATIONS Specifications are provided here as a reference only and may be changed without notice Please refer to JGR Optics s website for the most recent specifications ...

Страница 50: ...PDL5 User Manual PDL5 UM 00001 Rev 001 44 ...

Страница 51: ...by a semicolon for example CLS ESE 10 Terminating a Program Message The command terminator should be a linefeed LF plus EOI for GPIB and a carriage return CR plus a linefeed LF for RS 232 No command processing occurs until a command terminator is received Command Header Variations Each command header in the command tree has a long form and a short form Both forms are acceptable and each form gives...

Страница 52: ... The following program messages are valid SOUR WAV 1310 WAV SOUR WAV 1310 SOUR WAV STAT OPER ENAB 5 ENAB The following program messages are NOT valid SOUR WAV 1310 SOUR WAV no colon before second command CHAN NEXT CHAN CHAN command at different level than NEXT Default Commands Default commands are commands that do not need to be explicitly included in the command path If a default command for a pa...

Страница 53: ...red by appropriate commands The status byte register and the condition register are both dynamic and get updated when the state of the instrument or the underlying status structures change Refer to IEEE488 2 and SCPI1999 documents for further details Status Byte Register The status byte register contains the summary bits for each of the structures implemented in the meter the master summary bit MS...

Страница 54: ...t Bit 7 operation summary bit is the summary bit for the operation status register It is set if any bit in the operation event register is set while the corresponding bit in the operation event enable register is set Service Request Enable Register The service request enable register determines which summary bits in the status byte register can generate service requests If a summary bit in the sta...

Страница 55: ...rror is detected by the meter for example if a command parameter is out of the range of the meter or a valid program message cannot be executed due to some condition in the meter Bit 5 command error is set when a command error is detected by the meter for example if a syntax error is detected in a program message an incorrect command header is received or if an IEEE GET message is received in the ...

Страница 56: ...o the GPIB controller until a character is transferred from the input buffer to the parser This ensures that no bytes in the program message are lost However the RS232C interface has no DAQ signal and cannot be signaled when the input queue becomes full Therefore characters sent to the PDL5 Meter are lost If a new program message is received before the response to a query in a previous message is ...

Страница 57: ...O queue the error returned when the error queue is read is always the first error that occurred If more than 10 errors are put in the error queue an overflow error occurs and the last error in the queue is overwritten with error number 350 Queue Overflow Each error in the queue consists of an error number and a brief error message Description of Error Numbers 0 No error No error has occurred 100 C...

Страница 58: ...etected but the control block cannot be more specific 330 Self Test error The device failed a self test 350 Queue overflow The error queue has overflowed and an error has occurred that cannot be recorded 400 Query error A query error was detected but the parser cannot be more specific ...

Страница 59: ...ds Command Parameter Response Minimum Maximum CLS N A N A N A N A ESE Integer N A 0 255 ESE N A Integer 0 255 ESR N A Integer 0 255 IDN N A String N A N A OPC N A N A N A N A OPC N A Integer 1 1 RST N A N A N A N A SRE Integer N A 0 255 SRE N A Integer 0 255 STB N A Integer 0 255 TST N A Integer 0 1 WAI N A N A N A N A ...

Страница 60: ...SOURce WAVlength Num Val MIN MAX DEF WAVlength None MIN MAX DEF Num Val NEXT CHANnel Num Val MIN MAX CHANnel None MIN MAX Num Val NEXT POWer MODe ABS REL BRM PDL MODe ABS REL BRM PDL READ Num Val FULL Num Val String DETector Num Val MIN MAX DETector None MIN MAX Num Val NEXT DARK BR0 READ Num Val STORe CLEar ALL SVL READ Num Val CLEar ALL REFerence AWL INIT CONT Num Val String ...

Страница 61: ...DL5 User Manual PDL5 UM 00001 Rev 001 55 CONT Num Val String SYSTem ERRor NEXT Num Val String VERSion String CAPability String COMMunicate GPIB SELF ADDRess Num Val COMMunicate GPIB SELF ADDRess Num Val ...

Страница 62: ...t immediately after a message terminating sequence both the output queue and the MAV bit in the status byte register are cleared Example CLS Standard Event Status Enable Register Command Syntax ESE space numeric value where 0 numeric value 255 Function Sets the bits in the standard event status enable register The numeric value is converted to a binary number The bits of the register are set to ma...

Страница 63: ...ery Syntax ESR Function Returns the contents of the standard event status register as an integer that when converted to a binary number represents the bit values of the register The standard event status register is cleared after ESR command Example ESR returns 195 if the standard event status register is set to 11000011 Identification Query Syntax IDN Function The IDN query returns a string value...

Страница 64: ...mmediately the status byte register should be polled and the MAV bit checked to determine if there is a message available in the output queue Example OPC Reset Command Syntax RST Function Meter is reset to the power on condition Example RST Service Request Enable Command Syntax SRE space numeric value where 0 numeric value 63 and 128 numberic value 191 Function Sets the bits in the service request...

Страница 65: ...r is set to 10011010 Read Status Byte Query Syntax STB Function Returns the contents of the status byte register as an integer that when converted to a binary number represents the bit values of the register The bit value for bit 6 of the register is the MSS bit value not the RQS bit value Example STB returns 170 if the status byte register is set to 10101010 Self Test Query Syntax TST Function In...

Страница 66: ...mands are completed by the time this command is parsed Example WAI SCPI Commands SOURce WAVlength Syntax SOURce WAVlength space wavelength MIN MAX DEF OR SOURce WAVlength NEXT Function Switches to a specified or next available wavelength no parameter or NEXT switches to the next available wavelength wavelength switches to the specified wavelength in nm Other units can be specified MIN MAX or DEF s...

Страница 67: ...OR SOURce CHANnel NEXT Function Switches the source output to a specified channel number no parameter or NEXT switches to the next channel number channel_number switches to the specified by the parameter channel number MIN or MAX switches to the first or last configured channel number respectively Example CHAN 3 switches the meter to channel 3 SOURce CHANnel Syntax SOURce CHANnel space MIN MAX Fun...

Страница 68: ...ILavg and PDL mode POWER MODe Syntax POWER MODe note v1 00 doesn t return PDL due to a bug Function Returns the current operation mode Example MOD returns ABS POWER READ Syntax POWER READ Function Triggers and Returns the reading of the meter Example READ returns 55 2 the unit is in BR mode POWER READ FULL Syntax POWER READ FULL Function Returns the current reading power or BR of the meter the cur...

Страница 69: ... last configured detector number respectively Example DET 2 switches to the detector number 2 POWER DETector Syntax POWER DETector space MIN MAX Function Returns the current or specified detector number No parameter returns the current detector number MIN or MAX returns the first or last configured detector number Example DET returns 2 POWER DETector DARK Syntax POWER DETector DARK Function Measur...

Страница 70: ...for the current source wavelength and output channel Example BR0 STOR measures and stores the custom BR0 value POWER BR0 CLEAR Syntax POWER BR0 CLEAR Function Clears the custom BR0 value for the current source wavelength and output channel Example BR0 CLEAR clears the custom BR0 value POWER BR0 CLEAR ALL Syntax POWER BR0 CLEAR ALL Function Clears the custom BR0 value for all source wavelengths and...

Страница 71: ...ent source wavelength and output channel Example SVL CLEAR clears the setup via loss value POWER SVL CLEAR ALL Syntax POWER SVL CLEAR ALL Function Clears the setup via loss values for all source wavelengths and all output channels Example SVL CLEAR ALL clears all setup via loss values POWER REFerence Syntax POWER REFerence Function Takes a relative power reference at current detector current wavel...

Страница 72: ...e at current detector for all wavelengths and all channels Example REF ALL takes the reference for all wavelengths and all channels INIT CONT Syntax INIT CONT space 0 1 OR OFF ON Function Sets the measurement mode to triggered or continuous Primarily to be used with PDL mode Example INIT CONT 0 turns OFF the continuous mode triggered mode ON INIT CONT Syntax INIT CONT Function Returns a value whic...

Страница 73: ... formatted numeric value the of the SCPI version number Example SYST VERS returns 1999 0 SYSTem CAPability Syntax SYSTem CAPability Function Returns the string specifying the capability of the device Example SYSTem CAPability returns OPTICAL INSTRUMENT SYSTem COMMunicate GPIB SELF ADDRess Syntax SYSTem COMMunicate GPIB SELF ADDRess space numeric_val ue Function Sets the GPIB address The factory se...

Страница 74: ...PDL5 User Manual PDL5 UM 00001 Rev 001 68 SYSTem COMMunicate GPIB SELF ADDRess Syntax SYSTem COMMunicate GPIB SELF ADDRess Function Returns the GPIB address Example SYST COMM GPIB ADDR returns 7 ...

Страница 75: ...e the display resolution of PDL and PW modes T Switch between triggered and continuous mode TRIG Trigger a measurement OTHER COMMANDS ABS Switch to Absolute power mode REL Switch to Relative power mode BRM Switch to BR mode MODE Query the current operation MODE SWL Switch Wavelength SSC Switch Wavelength by Sequence SCH Switch Channel DET Switch Detector BRZS Store BR0 BR Zero Store BRZC Clear BR0...

Страница 76: ... xx xx or xx xxx depending on resolution LAV The LAV command will cause the meter to transmit the last Average Loss value In triggered PDL mode this command will not initiate a new measurement cycle Use together with TRIG in triggered mode to obtain a new reading Interface GPIB and RS 232 USB Syntax LAV CR Returned Format xx xx or xx xxx depending on resolution FP The FP command will move the Flip...

Страница 77: ...d 6 Interface GPIB and RS 232 USB Syntax STATENUM x CR where x is the number of states Returned Format None STATENUM The STATENUM command queries the number of states used in Mueller matrix PDL measurements Interface GPIB and RS 232 USB Syntax STATENUM CR Returned Format x NL where x is the number of states used for PDL measurements Valid return values are 4 and 6 RES The RES command sets the reso...

Страница 78: ...e GPIB and RS 232 USB Syntax T x CR where x is a numeric value 0 1 OR a string OFF ON Returned Format None T The T command queries whether the meter is in triggered mode Interface GPIB and RS 232 USB Syntax T CR Returned Format x NL where x 0 triggered mode is OFF x 1 triggered mode is ON TRIG The TRIG command initiates a new measurement cycle This command is primarily to be used in PDL triggered ...

Страница 79: ...d RS 232 USB Syntax BRM CR Returned Format None MODE The MODE command queries the current operation mode query return ABS REL BRM or PDL for the four different operating modes Interface GPIB and RS 232 USB Syntax MODE CR Returned Format Mode NL where Mode ABS REL BRM or PDL SWL The SWL command switches the meter to the next wavelength or to a specific wavelength using the wavelength um as referenc...

Страница 80: ...n number sequence as reference The position of a laser in a particular meter will depend on the number of lasers in the meter Interface GPIB and RS 232 USB Syntax SSC CR switches to next wavelength SSC x CR where x 1 2 3 or 4 Example SSC 2 switches to the second wavelength ie on a 2 wavelength PDL5 1310 1550 SSC 2 would switch to 1550nm however on a 1310 1480 1550 1625 SSC 2 would switch to 1480nm...

Страница 81: ...returns are 01 02 12 or 24 36 48 which is the total channel number Interface GPIB and RS 232 Syntax SCH CR Returned Format xx NL where xx 01 02 48 DET The DET command can switch the meter to the next detector or to a specific detector Interface GPIB and RS 232 Syntax DET CR switches to next detector DET xx CR where xx 00 02 03 4 Example DET 1 switches to detector 1 Returned Format None DET Query r...

Страница 82: ...R mode or dual display mode for the command to succeed Interface GPIB and RS 232 USB Syntax BRZC CR Returned Format None DARK The DARK command will store dark current The meter needs to be in POWER mode for the command to succeed Interface GPIB and RS 232 USB Syntax DARK CR Returned Format None TREF The TREF command will take relative power reference The meter needs to be in relative power mode fo...

Страница 83: ...will cause the meter to transmit the data only If in BR mode the data is the BR in Power mode the data is the IL or absolute power and in Dual Display mode the data is both the BR and IL Interface GPIB and RS 232 USB Syntax TDO CR Returned Format xx x for BR mode xx xx for power mode xx x xx xx for PDL mode LCL The LCL command is used to return the remote control status to local front panel contro...

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