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WA-1150 and WA-1650 Wavemeter Operating Manual

3 Remote Communications

EXFO Burleigh Products Group Inc. (09042-M-00 Rev C)

3-9

{:MEASure | :READ | :FETCh}{:POWer | :ENVironment | :WAVelength | :FREQency}?

Description

Queries a reading of the given type from the measurement subsystem.

Query Response

(see below)

Examples

(see below)

Measurement Instruction Functions

:POWer?

Description

Returns a power reading in either watts or dBm as specified by the
:UNIT:POWer function.

Query Response

A numerical value in scientific notation. (ex. -1.267E+001)

Examples

:READ:POW?
:FETC:POW?

:ENVironment?

Description

Returns the instrument's internal temperature in °C and pressure in mm Hg.

Query Response

Two numerical values with units separated by a comma. (ex. 28.5 C, 740
MMHG)

Examples

:MEAS:ENV?
:FETC:ENV?

:WAVelength?

Description

Returns an input laser reading in units of nm.

Query Response

A numerical value in scientific notation (ex. 1.5003). The number
of significant digits will be determined by the current resolution setting.
Resolution is set through the front panel or by using the
:DISPlay:RESolution command.

Examples

:FETC:WAV?
:READ:WAV?

:FREQuency?

Description

Returns an input laser reading in units of GHz.

Query Response

A numerical value in scientific notation (ex. 1.9005). The number
of significant digits will be determined by the current resolution setting.
Resolution is set through the front panel or by using the
:DISPlay:RESolution command.

Examples

:FETC:FREQ?
:MEAS:FREQ?

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Summary of Contents for Wavemeter WA-1150

Page 1: ...nderutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of their respective ow...

Page 2: ...elength meter 09042 M 00 Rev C 2002 EXFO Burleigh Products Group Inc All Rights Reserved Wavemeter is a registered trademark of Burleigh Instruments Inc an EXFO company Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 3: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 4: ...eens 2 5 3 Remote Communications 3 1 Overview 3 1 SCPI Communications Scheme 3 1 SCPI Command Detail 3 5 Common Commands 3 5 Measurement Instructions 3 8 CALCulate Subsystem 3 10 DISPlay Subsystem 3 13 SENSe Subsystem 3 15 STATus Subsystem 3 17 SYSTem Subsystem 3 19 TRIGger Subsystem 3 21 UNIT Subsystem 3 21 4 Theory of Operation Calibration 4 1 Operating Principles 4 1 Wavelength Accuracy 4 1 Pow...

Page 5: ...formity Assumptions This operating manual provides information for individuals who use the EXFO WA 1150 and WA 1650 Wavemeter optical wavelength meters Unless specifically stated the information in this manual applies to both the WA 1150 and WA 1650 models This manual assumes familiarity with communication software and hardware interfaces with an IBM or compatible personal computer Artisan Technol...

Page 6: ...red wavelength and starting point or compute the average of up to 128 measurements Refer to Section 4 Theory of Operation Calibration for additional information on the theory of operation Introduce laser light into the WA 1150 or WA 1650 by attaching your fiber optic cable to the fiber optic connector on the front of the unit The standard connector is the EXFO universal FC UPC connector FC APC SC ...

Page 7: ... OPEN OR REMOVE COVERS WARNING TO PREVENT ELECTRICAL SHOCK TURN OFF THE POWER TO THE SYSTEM BEFORE CLEANING USE A DRY OR SLIGHTLY DAMPENED WITH WATER CLOTH TO CLEAN THE EXTERNAL PARTS DO NOT ATTEMPT TO CLEAN ANYTHING INSIDE THE INSTRUMENT WARNING THIS IS A SAFETY CLASS 1 PRODUCT PLUG THE MAIN POWER CORD INTO A SOCKET OUTLET PROVIDED WITH A PROTECTIVE EARTH CONTACT ALWAYS USE A THREE PRONG AC POWER...

Page 8: ...tes WA 1650 only Ensure all fiber optic connectors are clean and dry see below Then connect your fiber optic cable to the fiber optic connector on the instrument front panel Make sure the fiber end does not rub against any surface and do not overtighten CAUTION The WA 1150 WA 1650 are designed to operate within the specified environmental specifications This requires proper ventilation Do not bloc...

Page 9: ... with a lint free swab or lens paper dipped in isopropyl alcohol 2 Dry it by wiping gently with a clean dry lint free lens paper 3 As soon as the connector is dry insert it in the instrument panel or cover it for later use Cleaning a Universal Connector NOTE Refer to Figure 1 1 below To clean the end of the universal connector 1 Unscrew the fiber from the instrument and put a protective cap on it ...

Page 10: ...d be cleaned periodically especially in a high dust environment or if it becomes noticeably dirty You must keep the filter clean in order to ensure proper operation of the instrument To clean the dust filter 1 Pry off the plastic grill covering the filter with a small screwdriver 2 Remove the foam filter 3 Use a small brush plus soap and water if necessary to clean the filter 4 When the filter is ...

Page 11: ...1150 and WA 1650 Wavemeter Operating Manual 1 Introduction 1 6 09042 M 00 Rev C EXFO Burleigh Products Group Inc Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 12: ...values Front Panel Controls The front panel is shown in Figure 2 1 The controls are described in Table 2 1 The display consists of an 8 digit numerical readout and buttons for selecting parameters that affect how the data is collected and how the information is displayed There are several different screens each with different information as shown and described later in this section Figure 2 1 Fron...

Page 13: ...ols to review information and make changes to the available parameters The headings below provide information on how to perform various procedures using these front panel controls Change Screens To change which display screen is shown press Display The instrument cycles between the display screens To change which setup screen is shown press Setup The instrument cycles between the setup screens Cha...

Page 14: ...rement information as summarized below Figures 2 2 through 2 4 show each display screen and Table 2 2 describes each item on these screens You access the three display screens by pressing Display on the instrument front panel and toggling the key to move through the choices Main Initially displays a start up screen for approximately 30 seconds after you first power on the unit After a self test an...

Page 15: ...ain Screen 1552 5218 nm 21 54 dBm Wavelength Range Vacuum Avg 8 Poffs Off 00 03 12 Figure 2 3 Wavelength Screen 1552 5218 nm Start 1552 5212 0 0006 Max 1552 5200 Min 1552 5235 0 0035 Wavelength Range Vacuum Avg 8 Reset 00 03 12 Figure 2 4 Power Screen 11 54 dBm Start 11 52 0 02 Max 11 60 Min 11 50 0 10 Wavelength Range Poffs Off Avg 8 Reset 00 03 12 Wavelength Power Artisan Technology Group Qualit...

Page 16: ...c value 1 2 20 in dB units You cannot change the type of units Change the numeric value on the Measurement setup screen Power Units The current laser power displayed in the selected units You can change the type of units on the Main or Power display screen The options are dBm and mW or µW If mW or µW are selected the Power Autorange feature automatically sets units to mW or µW depending on input p...

Page 17: ...ifies the number of previous wavelength and power values to use to calculate the running average The display is updated with each new measurement Off indicates values are not averaged 2 4 8 128 powers of 2 Selections for average values Power Offset Displays the power offset Poffs value applied to subsequent power measurements These values enable you to obtain accurate power readings when you place...

Page 18: ...unications The selections are 1200 2400 4800 9600 and 19200 baud Handshaking Identifies the type of handshaking used for the RS 232 communications The selections are Hardware Xon Xoff software or None GPIB Enables on and disables off communications via the GPIB port Address Identifies the address used for GPIB output The selections are 0 1 2 31 Table 2 5 Information Parameter Description Options S...

Page 19: ...A 1650 Wavemeter Operating Manual 2 Front Panel Controls and Screens 2 8 09042 M 00 Rev C EXFO Burleigh Products Group Inc Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 20: ...that follows the Standard Commands for Programmable Instruments SCPI Syntax and Style Guidelines Table 3 3 provides a summary of commands by subsystem and the information after the table describes each command in detail Note indicates an optional argument indicates a choice from a set of arguments Table 3 3 SCPI Command Summary Group Command Description Common Commands Defined by IEEE 488 2 these ...

Page 21: ...o mean initiate a new reading and return the value when the reading is complete CALCulate Subsystem These commands obtain calculated values from the instrument In general calculated values are values derived from actual measurements CALCulate DATA POWer FREQuency WAVelength Used to set the type of data retrieved from the calculate subsystem CALCulate DELTa STATe Queries if DELTa is to be calculate...

Page 22: ...g on the actual input power level DISPlay UNITs WAVelength Queries the wavelength units used for display DISPlay UNITs WAVelength NM GHZ Selects the wavelength units used for display SENSe Subsystem These commands are used to control factors that affect the way in which the measurements are taken SENSe AVERage Queries the amount of averaging that is used in the instrument SENSe AVERage OFF 2 4 8 1...

Page 23: ...ny entries the Error Queue bit is set in the Status Byte SYSTem HELP HEADers This query returns a list of all commands queries supported by the instrument SYSTem REMote This query checks if the front panel is enabled or not If ON the front panel is locked out SYSTem REMote ON OFF This command controls whether the front panel is enabled or not If in Remote mode the front panel is locked out SYSTem ...

Page 24: ... Description The ESE event status enable command sets the bits in the event status enable register and enables the corresponding events in the event status register For each bit that is set equal to 1 it is enabled in the event status register ESR integer is an integer which is the sum of all of the bit values for those bits that are set Event Status Enable Register Bit Bit Value Enables 7 128 Pow...

Page 25: ...g value which contains the instrument type serial number and firmware version The third value is the instrument serial number The last value is the software version and will reflect the actual version number Query Response BURLEIGH WAVEMETERS WA 1150 1001 1 0 RCL Description The RCL recall command restores instrument settings It is the same as using the Restore All function through the display RST...

Page 26: ...he Save All function through the display STB Description The STB status byte query returns the current value of the instrument s status byte Query Response Returns an integer which is the sum of all the bit values for those bits that are set see the Instrument Status Byte table Instrument Status Byte Bit Bit Value Condition 5 32 a bit is set in the questionable register see STATus subsystem 3 8 er...

Page 27: ...ASure and READ get a new reading after the next complete scan MEASure and READ guarantee that each reading returned is a new one If you want to get multiple measurement types from a single scan i e WAVelength POWer etc use READ followed by one or more FETCh queries MEASure and READ actually are macros that execute multiple SCPI commands READ is equivalent to ABORt INITiate FETCh function and MEASu...

Page 28: ...cal values with units separated by a comma ex 28 5 C 740 MMHG Examples MEAS ENV FETC ENV WAVelength Description Returns an input laser reading in units of nm Query Response A numerical value in scientific notation ex 1 5461108E 003 The number of significant digits will be determined by the current resolution setting Resolution is set through the front panel or by using the DISPlay RESolution comma...

Page 29: ... and off with their respective commands When one of them is turned on the others are automatically turned off CALCulate Subsystem Functions DATA POWer FREQuency WAVelength Description Gets a calculated value of a pre selected data type In order for this function to return a result you must first set up the CALCulate subsystem using the DELTa MAXimum MINimum or STARt functions Query Response A nume...

Page 30: ...et start current values or MAXMin to get maximum minimum values RST value STARt Examples CALC DELT METH STAR CALC DELT METH MAXM MAXimum STATe Description Queries the state of the MAXimum function Query Response 0 1 Where 0 indicates OFF and 1 indicates ON Examples CALC MAX CALC MAX STAT MAXimum STATe ON OFF Description Sets the state of the MAXimum function to either ON or OFF RST value OFF Examp...

Page 31: ...nstrument s front panel display It is the same as using the Reset function through the display Examples CALC RES STARt STATe Description Queries the state of the STARt function Query Response 0 1 Where 0 indicates OFF and 1 indicates ON Examples CALC STAR CALC STAR STAT STARt STATe ON OFF Description Sets the state of the STARt function to either ON or OFF RST value OFF Examples CALC STAR ON CALC ...

Page 32: ...s on a setup dialog Query Response MAIN WAVELENGTH POWER Examples DISP DIAL DIALog MAIN WAVelength POWer Description Sets the dialog that is on the instrument s front panel display RST value MAIN Examples DISP DIAL MAIN DISP DIAL POW RESolution Description Queries the current resolution of the instrument Query Response 0 0001 0 001 0 01 0 1 1 0 10 0 100 0 Examples DISP RES RESolution 0 0001 0 001 ...

Page 33: ...isplay If the units are set to MICRowatts or MILLiwatts the display may switch to MILLiwatts or MICRowatts due to the display s Power Autorange feature RST value DBM Examples DISP UNIT POW MICR DISP UNIT POW DBM UNITs WAVelength Description Queries the units being used for wavelength values on the front panel display Query Response NM GHZ Examples DISP UNIT WAV UNITs WAVelength NM GHZ Description ...

Page 34: ... power values It is the same as using the Average function through the display RST value OFF Examples SENS AVER OFF SENS AVER 8 MEDium Description Queries the medium used for wavelength calculations Query Response AIR VACUUM Examples SENS MED MEDium AIR VACuum Description Sets the medium used for wavelength calculations It is the same as using the Medium function through the display RST value VAC ...

Page 35: ... warm up are returned separated by commas ex 267 0 UW 76 7 For the WA 1150 just the power in µW is returned ex 267 0 µW Examples SENS REF SENS REF PAR SENSe RANGe 0 3 Description Sets the spectral range as shown by Freq Range on the Configuration screen to be measured by the instrument Query Response 0 700 to 1266 1 1266 to 1650 2 1266 to 1475 3 1450 to 1650 Examples For example to change to 700 t...

Page 36: ...dicate that one or more measurement types are of questionable accuracy The bits in the register are described in the table below Query Response An integer which is the sum of the bit values for all bits in the register that are set Examples STAT QUES COND Questionable Register Bit Bit Value Description 0 1 Wavelength has been read already for the current scan 1 2 not used 2 4 not used 3 8 Power va...

Page 37: ...AT QUES ENAB 1024 QUEStionable HARDware CONDition Description Queries the SCPI Questionable Hardware Condition register which contains bits that indicate that one or more hardware problems exist These problems may contribute to invalid or erred measurements The bits in the register are described in the table below Query Response An integer which is the sum of the bit values for all bits in the reg...

Page 38: ...ies the Error Queue bit is set in the Status Byte The instrument has a 30 entry first in first out queue Repeatedly sending the query SYST ERR returns the error numbers and descriptions in the order in which they occurred until the queue is empty Any further queries return 0 No error until another error occurs A table of possible errors is shown below Query Response integer string ex 104 Data type...

Page 39: ...s SYST HELP HEAD REMote Description Queries the state of the remote lockout feature Query Response ON OFF Examples SYST REM REMote ON OFF Description Sets the state of the remote lockout feature When the state is ON front panel input is locked out and the instrument can only be operated remotely using SCPI commands RST value OFF Examples SYST REM ON SYST REM OFF VERSion Description Returns the ver...

Page 40: ... idle state Examples ABOR INITiate IMMediate Description Starts the acquisition of a new reading Examples INIT INIT IMM UNIT Subsystem For the instrument there is a single query and command in the UNIT subsystem They query and change the units that the SCPI interface uses for reporting power UNIT Subsystem Functions UNIT POWer Description Queries the state of the power units that will be used when...

Page 41: ...d WA 1650 Wavemeter Operating Manual 3 Remote Communications 3 22 09042 M 00 Rev C EXFO Burleigh Products Group Inc Inc Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 42: ... the Michelson interferometer fringe pattern it is necessary to sample the detected intensity at precisely calibrated intervals in the scan of the interferometer This is accomplished by introducing into the interferometer a second reference laser with an accurately known wavelength This laser measures the displacement of the moving arm of the interferometer and provides a signal for accurately sam...

Page 43: ...tion line has been characterized to 196 832 341 GHz 150 KHz by K Nakagawa et al in Accurate optical frequency atlas of the 1 5m bands of acetylene JOSA B 13 2708 1996 using an absorption line of rubidium as the reference standard Power Accuracy The WA 1150 1650 internal power meter is designed with excellent linearity over the full specified power range Correction for the responsiveness of the pow...

Page 44: ...olution 0 05dB Linearity 0 3 dB Display resolution 0 01 dB Units dBm mW µW Optical Input Signal Sensitivity 1200 to 1600 nm 40 dBm 0 1 µW Sensitivity 700 to 1650 nm 30 dBm 1 µW Maximum input level 10 dBm 10 mW Maximum safe level 18 dBm 63 mW Measurement Update Time rate 1 sec 1 measurement sec 1 sec 1 measurement sec Inputs Outputs Optical input 9 125 µm fiber FC UPC or FC APC SC UPC or SC APC ST ...

Page 45: ...31 8 mm x 419 1 mm Weight 17 lbs 7 65 kg 18 lbs 8 18 kg Power Requirements Voltage and frequency 90 to 260 VAC 50 60 Hz Measurement repeatability is reduced when input 35 dBm Measurement rate is 1 second or two seconds depending on the wavelength source selected Dimensional Drawing Figure A 1 Dimensions in inches mm Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www arti...

Page 46: ...l and to provide adequate ventilation inside the rack to prevent overheating For proper fit you may want to remove the feet under the chassis CAUTION If you remove the feet DO NOT reinsert the screws or damage to the internal components of the instrument can occur To attach the rack mounting brackets 1 Remove the set screws from the bezel 2 Attach the bracket to the bezel using the two 6 32 x SHC ...

Page 47: ...A 1650 Wavemeter Operating Manual Appendix A Specifications Labeling A 4 09042 M 00 Rev C EXFO Burleigh Products Group Inc Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 48: ...ive in advance of returning a unit for a Return Authorization Number RA This will ensure the prompt handling of the repair as well as provide important tracking information The liability of EXFO Burleigh Products Group Inc except as to title arising out of supplying of said product or its use whether under the foregoing warranty a claim of negligence or otherwise shall not in any case exceed the c...

Page 49: ...nd WA 1650 Wavemeter Operating Manual Appendix B Warranty Service B 2 09042 M 00 Rev C EXFO Burleigh Products Group Inc Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 50: ...appear if there were multiple errors Table C 1 Error Messages Display Message Cause Solution Status Screen Reference Loading Default Settings Indicates the original calibration and set up data have been corrupted and default values will be used none Reference Laser Over Temperature WA 1650 only The reference laser stabilization circuit is indicating an over temperature condition Turn the instrumen...

Page 51: ...ing within the specified wavelength range 700 1650 nm 00008000 Status Messages The following table describes the complete set of status messages that can appear in the status screen The messages are listed in numerical order Table C 2 Status Messages Status Message Description Solution Load default settings Indicates the original calibration and set up data have been corrupted and default values w...

Page 52: ...ering the instrument 00001000 Pressure reading is out of range range is 500 to 900 mm Hg If the problem persists contact EXFO Service 00002000 Temperature reading is out of range range is 1 to 50 C A temperature reading of 0 C usually indicates the temperature sensor is not connected or has a broken wire If the problem persists contact EXFO Service 00004000 Input laser power error power is out of ...

Page 53: ...WA 1650 Wavemeter Operating Manual Appendix C Error Status Messages C 4 09042 M 00 Rev C EXFO Burleigh Products Group Inc Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 54: ...Rev C D 1 Appendix D Rear Panel Controls Rear Panel GPIB Interface The instrument has a GPIB communications port on the back panel as shown above The GPIB port uses the standard IEEE 488 connector with the pinout described below CE Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 55: ...nation and bus timing to communicate with the WA 1150 or WA 1650 Other settings may work as well but these are the settings that we ve found to work the best Set EOI at End of Write Yes This causes the system controller to assert the EOI signal during the last byte of a message written to the instrument Set EOI With EOS on Write No The system controller should not assert the EOI signal when it wri...

Page 56: ... is a 9 pin female D sub style connector with the pinout described below The connector housing provides connection to the earth ground inside the instrument The pin configuration complements that of the PC AT To connect the instrument to a PC AT use a serial extension cable with 1 1 pin correlation To facilitate the connecting of the serial port use the signal descriptions H Active RS 232 Serial P...

Page 57: ...ctive 9 N C Signal Monitor Connector The Signal Monitor connector on the back panel of the instrument provides a combination of analog and digital signals for observing the fringe signals and measurement timing signals using an oscilloscope The signals have the characteristics described in Table D 1 The Signal Monitor output is a 15 pin female D sub style connector shown in Figure D 1 and with the...

Page 58: ...is a digital pulse derived from the interferometer scanner that produces a low to high transition at the point in the scan where the difference between the two optical paths in the interferometer is zero 9 AGND Analog Ground 10 AGND Analog Ground 11 N C 12 N C 13 N C 14 DGND Digital Ground 15 WINDOW TTL Scanning Window digital output is derived from the amplitude of the input laser fringe signal W...

Page 59: ... fuses are accessible at the rear panel of the instrument The procedure for changing fuses is shown below The fuse holder can be used for either single line or dual line fusing The WA 1150 1650 comes from the factory with only one line fused Removing the adapter clip allows dual fuses The fuse holder can hold 1 5 amp slo blo x 1 or 5 x 20mm style fuses Artisan Technology Group Quality Instrumentat...

Page 60: ...nity 4kV CD 8kV AD EN 61000 4 3 RFI Immunity 10V M 80 1000 MHz Class I EN 61000 4 4 Electrical Fast Transient Immunity 2 kV EN 61000 4 5 High Voltage Surge Immunity 2 kV EN 61000 4 6 Conducted RF Immunity Supplementary Information The product complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC European Sales Office Scientifica Ltd 9 Allied Busines...

Page 61: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 62: ...Fiber optic 1 4 GPIB D 1 Monitor D 4 RS 232 D 3 Universal 1 4 D Display Instrument 2 1 Screens 2 3 Display button 2 2 E Error messages 2 5 C 1 F Fiber end cleaning 1 3 Fiber optic connector 1 4 Front panel 2 1 Fuse holder D 6 G GPIB Connector D 1 Enable disable 2 7 2 8 H Handshaking 2 7 2 8 I IEEE 488 D 1 Information setup screen 2 6 L Laser power current 2 5 Lockout See Remote Lockout M Main disp...

Page 63: ... Set up 1 3 Setup button 2 2 Setup screens 2 6 Signal GPIB D 1 Monitor D 4 RS 232 D 3 Specifications A 1 Standard air 2 5 Status screen 2 6 U Units See specific parameter s units Universal connector 1 4 V Vacuum 2 5 W Warranty B 1 Wavelength Current 2 5 Display screen 2 3 Wavelength accuracy 4 1 X Xon Xoff 2 7 EXFO Burleigh Products Group Inc 7647 Main Street Fishers Victor NY 14564 8909 Tel 585 9...

Page 64: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...

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