Agilent Technologies HP E5574A User Manual Download Page 179

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177

Appendix B. Accessories

Instrument and Options

AT T E N T I O N The optical input always requires angled
connectors.

Using any other connector:

• will increase insertion loss and

• may damage the optical input.

If using a different optical head, use one of the following:

Model No.

Description

HP E5574A

Optical Loss Analyzer including one HP 81521B
#001 optical head

Option 013

Fabry Perot Laser Source 1310 nm

Option 015

Fabry Perot Laser Source 1550 nm

Option 135

Dual Wavelength Fabry Perot Laser Source
1310/1550 nm

Option 020

Pigtail optical output connector
A 9/125

m fiber pigtail with an FC/PC connector

attached

Option 021

Straight contact optical output connector

Option 022

Angled contact optical output connector

Option 521

Second HP 81521B #001 optical head

Model No.

Description

HP 81521B

Ge, 5mm, 900-1700 nm, +3 to -80 dBm

HP 81524A

InGaAs, 5mm, 800-1650 nm, +3 to -90 dBm

HP 81525A

InGaAs, 5mm, 800-1650 nm, +27 to -70 dBm

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Summary of Contents for HP E5574A

Page 1: ...underutilized 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...

Page 2: ...support your product This manual provides the best information we could find It may be incomplete or contain dated information and the scan quality may not be ideal If we find a better copy in the fut...

Page 3: ...HP E5574A Optical Loss Analyzer User s Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 4: ...ry HP warrants that its software and firmware designated by HP for use with an instrument will exe cute its programming instruc tions when properly installed on that instrument HP does not warrant tha...

Page 5: ...HP E5574A Optical Loss Analyzer User s Guide Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 6: ...e protective earth grounding will cause a potential shock hazard that could result in serious personal injury Whenever it is likely that the protection has been impaired the instrument must be made in...

Page 7: ...ic shock Frame or chassis terminal Protective conductor terminal Hazardous laser radiation Electromagnetic interference EMI WARNING The WARNING sign denotes a hazard It calls attention to a procedure...

Page 8: ...on the front panel of the instrument E5574A Laser Type FP Laser InGaAsP Laser Class According to IEC 825 Europe 3A According to 21 CFR 1040 10 Canada Japan USA 1 Output Power CW less than 500 W Beam W...

Page 9: ...r modules to a HP Service Center for repair and calibration or have the repair and calibration performed on site by HP personnel The laser module has built in safety circuitry that disables the optica...

Page 10: ...he optical output when the device is operational The laser radiation is not visible to the human eye but it can seriously damage your eyesight There is a safety circuit which monitors the average lase...

Page 11: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 12: ...how to operate the instrument remotely via the HP IB in chapter 8 Additional information not required for routinely day to day use in the appendix Conventions used in this Manual Quoted terms like Pol...

Page 13: ...OLA 29 1 5 Help is Available 30 1 6 Getting Started 31 Power On 31 General Instrument Settings 32 Zeroing the Heads 33 Storing the Reference Power 34 Checking the Stability 36 1 7 How to Obtain Exact...

Page 14: ...the Measurement 49 Repeating the Measurement 49 Explanation of the Results 50 3 Taking Standard Loss Measurements 3 1 Measuring the Insertion Loss 55 Insertion Loss Measurement Setup 56 Starting the...

Page 15: ...suring Absolute and Relative Power 75 Powermeter Measurement Setup 75 Starting the Measurement 76 Checking the Measurement Conditions 76 Storing a Reference Value 77 Setting the Measurement Mode 78 Me...

Page 16: ...95 Setting the HP IB Address 96 Modes of Operation 96 OLA Specific Features 97 How the OLA Processes HP IB commands 98 Some Notes about Programming and Syntax Conventions 99 8 2 Command Summary 101 I...

Page 17: ...eplacing the Fuse 168 Replacing the Battery 169 Environmental Specifications 170 Instrument Positioning and Cooling 171 Optical Output 171 HP IB Interface 172 Connector 172 HP IB Logic Levels 173 Clai...

Page 18: ...ower 199 Test III CW Stability Short Term 200 Test IV Linearity and Accuracy 202 Test V PDL PDG uncertainty 020 only 206 Test VI Repeatability PDL PDG 208 Test VII Noise 210 Absolute PDCR Uncertainty...

Page 19: ...Physical Contact Interfaces 236 Cleaning Recessed Lens Interfaces 237 Cleaning Fragile Optical Devices 238 Cleaning Metal Filters or Attenuator Gratings 239 F Error Messages Display Messages 243 Light...

Page 20: ...Return Loss Calibration 59 3 4 Return Loss Settings Display 60 3 5 Return Loss Calibration Display 61 3 6 Setup for Return Loss Measurements 62 3 7 Return Loss Display 63 4 1 Setup for Coupler Test 6...

Page 21: ...st Setup 198 D 2 Output Power Test Setup 199 D 3 CW Stability Short Term Test Setup 200 D 4 Accuracy Test Setup 202 D 5 Linearity Test Setup 204 D 6 PDL PDG Uncertainty Test Setup 206 D 7 Example Draw...

Page 22: ...8 6 IL Specific Commands 104 8 7 PDL IL Specific Commands 104 8 8 Coupler Test Specific Commands 104 8 9 Return Loss Specific Commands 105 8 10 Powermeter Specific Commands 106 8 11 Min Max Applicati...

Page 23: ...1 1 Introducing the HP E5574A Optical Loss Analyzer Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 24: ...find basic information about the HP E5574A Optical Loss Analyzer OLA After reading this chapter you will know how the instrument works which applications it supports how it is operated Artisan Technol...

Page 25: ...of polarization Figure 1 1 The OLA Components Head Input A Head Input B Optical Input Optical Output Head Input A Head Input B Optical Input Optical Output 3 dB Coupler Pol Ctrl Internal Source s Sign...

Page 26: ...an Do With the OLA As one can see from Figure 1 1 the OLA has one output and three input ports It therefore supports a variety of applications Operational Modes You can set up the OLA to perform as fo...

Page 27: ...OLA applications include the following measurements Insertion Loss IL You measure the power loss of passive optical components Polarization Dependent Loss PDL You measure the maximal power fluctuatio...

Page 28: ...terface Bus See Chapter 8 HP IB Programming for details The front panel shows from left to right the power on off key four keys below the display the MORE key a numerical keypad with additional functi...

Page 29: ...can thus provide more than four softkeys After selecting an application always press MORE to view any additional options provided by the application Press MORE once again to return to the first screen...

Page 30: ...pply to all the measurements you take PRESET Use this key to check and to change the general instrument settings for the measurement sensitivity and for the display of measured values ATTENTION Pressi...

Page 31: ...means of the softkeys Each application comes with its own set of softkeys For example The display shows not only the measured parameters and value s but also the current measurement conditions which...

Page 32: ...t show the general instrument settings These can only be accessed by pressing the PRESET key ATTENTION The display may burn in if it remains unchanged for longer than 24 hours To avoid damaging the di...

Page 33: ...ing the heads 4 Storing the reference power 5 Checking the stability Power On The OLA has been designed to measure even very small changes of optical power How to Obtain the Highest Accuracy 1 After s...

Page 34: ...e OLA is used for screening examinations of optical components To change the setting press N DIGITS Mode The measurement and display mode affects all polarization dependent measurements The standard s...

Page 35: ...applicable if you use the optical heads HP 81521B opt 001 You can change the standard setting to High sensitivity You get the maximal power range 80 dBm but less polarization sensitivity 0 012 dBpp PD...

Page 36: ...can either disconnect the second head or repeat step one 5 Wait some seconds until a power value is shown again 6 Press APPL to terminate the Powermeter application After zeroing the instrument is rea...

Page 37: ...ght source to the optical input press SOURCE ON OFF to turn the internal source off WARNING After connecting an external source to the optical input light eventually laser light will emerge from the o...

Page 38: ...tors or the source you must measure and store the reference power anew Checking the Stability Mechanical and electrical stability are vital issues in the measurement of optical characteristics After w...

Page 39: ...e measured results depend largely on your setup It must be mechanically stable and you must attach adequate heads and connectors Mechanical Stability The signal variations caused by polarization are u...

Page 40: ...nector option please remember Due to their construction angled contact connectors usually exhibit a higher polarization dependent loss than straight contact connectors Every connector or patchcord may...

Page 41: ...2 2 Taking Polarization Dependent Measurements Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 42: ...cally the difference between the highest and lowest intensity caused by the continuously changing polarization and received by the optical head s The OLA uses a recursive algorithm which checks the PD...

Page 43: ...asurement Setup The same setup can be used to measure the Insertion Loss 1 Connect the optical output to the input of the device under test DUT 2 Connect the optical head to the output of the DUT Figu...

Page 44: ...tarting the Measurement 1 Press APPL to activate the Select Applications menu 2 Choose Pol Depend Loss 3 Wait until the result is displayed The OLA immediately starts to measure Depending on the PDL v...

Page 45: ...ich you connected the DUT press HEAD A or HEAD B respectively Before you record the first PDL value on your test protocol it is important to check the stability of your setup Checking the Stability of...

Page 46: ...tivate the Select Applications menu 2 Choose PDL Ins Loss The instrument immediately starts to measure Wait until the values are displayed Explanation of the Results The values are calculated accordin...

Page 47: ...ications Insertion Loss or PDL Ins Loss respectively The reason is that the average insertion loss measured with PDL Ins Loss represents a PDL independent insertion loss value The value for Averaged I...

Page 48: ...her parameters change with polarization PD Coupler Test Measurement Setup Two optical heads are required to measure the properties of optical couplers Figure 2 4 Setup for PD Coupler Test Coupler unde...

Page 49: ...SOURCE ON OFF to turn the internal source off The source indicator lamp must be off Starting the Measurement 1 Press APPL to activate the Select Applications menu 2 Choose PD Coupler Test The first pa...

Page 50: ...on page 31 Press PREVIOUS to return to the PD Coupler Test 2 Check the Head parameter on the display If you want to measure the other output of the coupler press HEAD A or HEAD B respectively Before y...

Page 51: ...lication Page two shows the measured values for Polarization Dependent Loss PDL and Polarization Dependent Excess Loss PDEL 4 Press to return to the first page Repeating the Measurement If the display...

Page 52: ...max CRA B min CRA B max Out1 2 max Out1 max Out2 max CRA B min Out1 2 min Out1 min Out2 min PDCRA B CRA B max CRA B min Since you are measuring variations only PDCRA is equal to PDCRB PDCRA B dB 10 l...

Page 53: ...n PDSRA B dB 10 log SRA B max SRA B min Note that PDSRA is not equal to PDSRB while PDSRA dB is equal to PDSRB dB Polarization Dependent Loss PDLA B dB 10 log Out1 2 max Out1 2 min Polarization Depend...

Page 54: ...2 Taking Polarization Dependent Measurements Measuring the Polarization Dependent Characteristics of Couplers Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg co...

Page 55: ...3 3 Taking Standard Loss Measurements Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 56: ...how to measure the Insertion Loss and the Return Loss of passive optical components This chapter is divided into two sections Measuring the Insertion Loss Measuring the Return Loss Artisan Technology...

Page 57: ...arized light However you can measure the same averaged Insertion Loss as with an unpolarized source even with the internal source This is accomplished by using the application PDL Ins Loss see section...

Page 58: ...internal light source press SOURCE ON OFF to turn the source on The source indicator lamp must be lit If you have connected an external light source to the optical input press SOURCE ON OFF to turn t...

Page 59: ...splay If it does not show the head to which you have connected the DUT press HEAD A or HEAD B respectively Note that the same setting of T avg is used by the Powermeter application 3 Press SETTINGS to...

Page 60: ...easuring the Return Loss This section explains how to measure the Return Loss i e the ratio of the optical power launched into a device to the power reflected back to the source The Return Loss can on...

Page 61: ...2 The measurement of a reference reflection is required for calibration If your optical output is the fiber pigtail with FC PC connector leave it untouched and open ended If your instrument is equipp...

Page 62: ...ameter on the display If it does not indicate the input to which you have connected the head press HEAD A or HEAD B respectively 5 Press SETTINGS If the refractive index of the fiber you are using dif...

Page 63: ...the open end in seven tight loops around a pen This almost eliminates the reflection from the open fiber end The remaining optical power is caused by so called parasitic reflections within the test s...

Page 64: ...its open end in seven tight loops around a pen This will virtually eliminate the backreflection from the open end Figure 3 6 Setup for Return Loss Measurements Head Input A Head Input B Optical Input...

Page 65: ...ility value 4 Press PREVIOUS to return to the previous page and read the PDL Checking the Influence of Polarization 1 Press SETTINGS to view the current measurement conditions 2 Press POLC ON if you w...

Page 66: ...eturn Loss Explanation of the Result The Return Loss is calculated according to the following formula Return Loss RLA B dB 10 log PA B P par P ref P par RL ref Artisan Technology Group Quality Instrum...

Page 67: ...4 4 Testing Optical Couplers Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 68: ...other Insertion Loss which means the ratio of the power at one output to the input power Excess Loss which means the ratio of the total power of both outputs to the input power Directivity which mean...

Page 69: ...tical heads are required to measure the properties of optical couplers Figure 4 1 Setup for Coupler Test Coupler under Test Head Input A Head Input B Optical Input Optical Output Head Input A Head A H...

Page 70: ...source indicator lamp must be lit If you have connected an external light source to the optical input press SOURCE ON OFF to turn the internal source off The source indicator lamp must be off Startin...

Page 71: ...utput of the coupler press HEAD B or HEAD A respectively 3 Before recording the values of the Coupling Ratio and the Splitting Ratio on your test protocol it is advisable to check the stability of you...

Page 72: ...ent 2 Press DB to change the measuring unit to dB 3 Press to view the second page of the application Page two shows the measured values for Insertion Loss IL and Excess Loss EL 4 Press to return to th...

Page 73: ...ry input of the coupler 2 Check the Head parameter on the display If it does not show the head to which you have connected the secondary input press HEAD B or HEAD A respectively 3 Check the stability...

Page 74: ...dB 10 Log Out1 2 Out1 Out2 Splitting Ratio SRA B Out1 2 Out2 1 SRA B dB 10 Log Out1 2 Out2 1 Insertion Loss ILA B dB 10 log Out1 2 P ref Excess Loss EL dB 10 log Out1 Out2 P ref Directivity DIRA B dB...

Page 75: ...5 5 Measuring Power Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 76: ...in dBm or W The ratio of the power presently received to a power measured previously The variation fluctuation of the power measured within a specified number of samples Using two optical heads you c...

Page 77: ...ff 2 Attach the device s under test DUT to the optical head s Figure 5 1 Powermeter Setup Head Input A Head Input B Optical Input Optical Output Head Input A Head Input B Optical Input Optical Output...

Page 78: ...1 6 Getting Started on page 31 Press PREVIOUS to return to the Powermeter screen 2 Press SETTINGS to check or change the measurement conditions The same setting of T avg is used by the Insertion Loss...

Page 79: ...to set the new value press ENTER or ENTER to store Relative measurements are always displayed in dB Unit The Unit parameter shows the measuring unit for the optical power By pressing UNIT you can tog...

Page 80: ...ured at head A divided by the stored reference value The B value can be the power measured at head B the power measured at head B divided by the power measured at head A or the power measured at head...

Page 81: ...in a specified number of samples The Win Size parameter is not available in continuous mode Win Size The parameter Win Size shows the number of samples used to determine the highest and lowest power v...

Page 82: ...t of samples Cont The window buffer is reduced to just two values From sample to sample the difference between the present and the previous power value is calculated and updated continuously 4 Press M...

Page 83: ...6 6 Using the OLA as a Laser Source and Polarization Controller Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 84: ...laser light source or as a controller to sweep or set the polarization of an external laser source The chapter is divided into two sections 1 How to use the OLA as a light source and 2 How to use the...

Page 85: ...equipped with both lasers you can switch between these two options How to Activate the Internal Laser Pressing SOURCE ON OFF will turn the internal laser on or off respectively As long as the interna...

Page 86: ...lit WARNING Although the source indicator lamp is off light eventually laser light will emerge from the optical output This happens even if the OLA is not connected to the mains or is switched off 6...

Page 87: ...If you are using the Return Loss application press SETTINGS and POLC ON The automatic sweep will start as soon as you return to the measurement screen If you are using the Powermeter application press...

Page 88: ...to set the new value and confirm with ENTER or ENTER How to Terminate the Automatic Sweep To stop the sweep do one of the following Suspend the current application e g by pressing APPL If you are usin...

Page 89: ...ed The angular range of each paddle has been divided into 1000 equal steps 0 to 999 This yields an adjustment resolution of 0 18 You can thus compare measurements taken under equal conditions How to s...

Page 90: ...88 Using the OLA as a Laser Source and Polarization Controller Using the OLA as a Polarization Controller Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 91: ...7 7 Instrument Settings and Software Status Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 92: ...n how to check or change the current system parameters and how to get information about the state of the software installed It mainly covers the functions of the SYST key and the AUX key Artisan Techn...

Page 93: ...number of digits to be displayed the measurement and display mode and the sensitivity For a detailed description see section 1 6 Getting Started on page 31 7 2 Checking the System Configuration The OL...

Page 94: ...ng 7 3 Checking the Software Status The OLA is software driven It can be upgraded by updating the software 1 Press AUX to display the version number of the software installed If you encounter any prob...

Page 95: ...8 8 HP IB Programming Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 96: ...the HP Interface Bus It is assumed that you are already familiar with programming the HP IB This chapter is divided into four main sections Introduction IEEE common commands OLA specific commands and...

Page 97: ...ronic Engineers IEEE Standard 488 1 1987 IEEE Standard Digital Interface for Programmable Instrumentation The Institute of Electrical and Electronic Engineers IEEE Standard 488 2 1987 IEEE Standard Co...

Page 98: ...m Configuration on page 91 The default HP IB address is 24 Modes of Operation The OLA has three modes of operation Table 8 1 HP IB Capabilities Mnemonic Function SH1 Complete source handshake capabili...

Page 99: ...ng the OLA remotely please note The display reacts on changes of the instrument mode triggered via the HP IB Starting an application via the HP IB stops any other application it acts like pressing the...

Page 100: ...commands which are described in this chapter can be executed Switching the power off causes all commands that are in the input queue to be lost The Output Queue The output queue is a buffer which con...

Page 101: ...he error queue by issuing the SYST ERR query repeatedly Some Notes about Programming and Syntax Conventions The following are a few points about the commands and queries sent to the OLA Sending Messag...

Page 102: ...at wsp white space The characters HT CR and space are treated as white space characters Others are described with the respective commands The characters between brackets show optional information that...

Page 103: ...Event Status Register Query IDN string Identification Query OPC Operation Complete Command OPC value Operation Complete Query OPT string Options Query RCL location 0 9 Recall Instrument Setting RST R...

Page 104: ...gister STAT OPER NTR Returns the NTRansition register contents STAT OPER PTR Sets the PTRansition register STAT OPER PTR Returns the PTRansition register contents STAT PRES Presets all enable register...

Page 105: ...ement mode SENS POW OPT Optimizes the heads SENS POW OPT Returns the optimization status SOUR POW STAT Switches the source on off SOUR POW STAT Returns the source status SOUR POW WAV Switches the wave...

Page 106: ...SENS DATA IL Returns the IL value SENS POW REF DISP Stores the reference power SENS POW REF DISP Returns the stored reference power Table 8 8 Coupler Test Specific Commands SENS DATA CR Returns the C...

Page 107: ...Returns the Return Loss value SENS POW REF Sets RL ref SENS POW REF Returns the RL ref setting SENS POW REF DISP PREF Stores P ref SENS POW REF DISP PREF Returns P ref SENS POW REF DISP PPAR Stores th...

Page 108: ...the Min Max application SENS POW ATIM Sets the average time SENS POW ATIM Returns the average time SENS POW WAV Sets the wavelength SENS POW WAV Returns the wavelength SENS POW UNIT Sets the unit to d...

Page 109: ...Commands SENS DATA MINM Returns the Min Max value SENS POW WIND MOD Sets the measurement window mode SENS POW WIND MOD Returns the measurement window mode SENS POW WIND SIZ Sets the measurement window...

Page 110: ...1 Common Status Registers 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 Operation Complete Operation Complete Request Control Request Control Query Error Query Error Device Dependan...

Page 111: ...ted by the condition that caused the SRQ The serial poll command transfers the value of the Status Byte register to a variable Command Descriptions command CLS syntax CLS description The CLear Status...

Page 112: ...s ESE example OUTPUT 724 ESE 21 command ESE syntax ESE description The Event Status Enable query ESE returns the contents of the Event Status Enable register response The bit value for the register 0...

Page 113: ...DN is used to obtain the instrument s identification response The identification string Hewlett Packard E5574A xxxxxxxxxx y yy xxxxxxxxxx Serial number 10 digits y yy Firmware revision for instance 1...

Page 114: ...wer on 2 Setting the interface to Device Clear Active state 3 CLS 4 RST related commands OPC example OUTPUT 724 OPC command OPC syntax OPC description The OPeration Complete query OPC causes all progr...

Page 115: ...d Contact related commands IDN example DIM A 60 OUTPUT 724 OPT ENTER 724 A command RCL syntax RCL wsp location description The ReCaLl instrument setting command RCL changes the instrument setting to t...

Page 116: ...RL ref to 14 7 dB sets the unit for power to Watt sets the unit for SR in CT and PDCT measurement to stops the automatic sweep of the polarization controller sets the scan rate of the polarization co...

Page 117: ...nable command SRE sets bits in the Service Request Enable register Any logical 1 in the enable register enables the corresponding bit in the Status register The register is cleared at power on The RST...

Page 118: ...RE ENTER 724 A command STB syntax STB description The STatus Byte query STB returns the contents of the Status Byte register The register is programmed via the Service Request Enable mask For setting...

Page 119: ...self test the instrument returns to the setting that was active at the time the self test query was processed response A boolean value 0 if the polarization controller test was successful 1 if the pol...

Page 120: ...ains the filtered status of the CONDition register This register is cleared when it is read The PTRansition register is one of the two filters controlling the EVENt register It puts when enabled a 1 i...

Page 121: ...sition and ENAble registers Set the NTRansition PTRansition and ENAble registers The Bits Used by the OLA The following bits are used in the OPERation node registers The following bit is used in the Q...

Page 122: ...r are used whether these bits contain information depends on the transition register configuration example OUTPUT 724 STAT OPER ENTER 724 A command STATus OPERation ENABle syntax STATus OPERation ENAB...

Page 123: ...Dition register to set the bit in the EVENt register example OUTPUT 724 STAT OPER NTR 768 command STATus OPERation NTRansition syntax STATus OPERation NTRansition description This query returns the cu...

Page 124: ...tion and QUEStionable nodes All the bits in the ENABle registers are set to 0 All the bits in the PTRansition registers are set to 1 All the bits in the NTRansition registers are set to 0 example OUTP...

Page 125: ...ue description This command sets the bits in the ENABle register that enable the contents of the EVENt register to affect the Status Byte STB Setting a bit in this register to 1 enables the correspond...

Page 126: ...r example OUTPUT 724 STAT QUES NTR ENTER 724 N command STATus QUEStionable PTRansition syntax STATus QUEStionable PTRansition wsp value description This command sets the bits in the PTRansition regist...

Page 127: ...owermeter Min Max and Return Loss errors The message Wrong application for this command is returned if the present application is not Powermeter Powermeter Min Max or Return Loss example OUTPUT 724 AB...

Page 128: ...ications Powermeter Powermeter Min Max and Return Loss Note This command is only executed when the automatic sweep is off see ABORt parameters 1 2 3 4 The number of the paddle which is to be set Defau...

Page 129: ...which is to be returned Default is 1 response An integer number 0 value 999 For an explanation of the value returned see PADDle POSition errors The message Wrong application for this command is return...

Page 130: ...xample OUTPUT 724 INIT SCAN RAT MAX command SCAN RATe syntax SCAN RATe wsp MIN MAX description The scan rate query returns either the present setting of the polarization controller s sweep speed or th...

Page 131: ...returned if no application is active The message No head connected is returned if there is no optical head attached to the instrument related commands SENSe CORRection COLLect ZERo example OUTPUT 724...

Page 132: ...rrors The message Wrong application for this command is returned if the present application is not Coupler Test or Polarization Dependent Coupler Test The message No head connected is returned if ther...

Page 133: ...currently active It is only applicable to the applications Coupler Test and Polarization Dependent Coupler Test parameter 1 2 1 Reads head A 2 Reads head B Default is 1 response The measured value in...

Page 134: ...on is not one of those listed above The message No head connected is returned if there is no optical head attached to the specified channel The message No valid result possible is returned if the valu...

Page 135: ...ot MINMax The message No head connected is returned if there is no optical head attached to the specified channel The message No valid result possible is returned if the value cannot be measured examp...

Page 136: ...only applicable to the Powermeter application parameter 1 2 1 Reads head A 2 Reads head B Default is 1 response You receive one of the following values If you choose head A A A B or A Ref If you choo...

Page 137: ...the present application is not Return Loss The message No head connected is returned if there is no optical head attached to the specified channel The message No valid result possible is returned if t...

Page 138: ...d not be measured example OUTPUT 724 SENS1 DATA SR ENTER 724 A command SENSe DATA STAB syntax SENSe 1 2 DATA wsp STAB description This query returns the stability value It is only applicable to the St...

Page 139: ...d resets the database and restarts the measurement parameters 1 2 The channel parameter 1 or 2 may be present but is ignored ON The ON extension may be present but is ignored Application value You can...

Page 140: ...The message Wrong application for this command is returned if you specify STAB and the present application is Powermeter Powermeter Min Max or none The same message is returned if you specify MINM and...

Page 141: ...value description This query returns the present status of the specified application It can be used any time parameters 1 2 The channel parameter 1 or 2 may be present but is ignored Application value...

Page 142: ...s parameters 1 2 The channel parameter 1 or 2 may be present but is ignored The setting affects both channels Unit s seconds ms milliseconds Default is s Value If unit is s or default Choice of 0 02 0...

Page 143: ...W ATIM ENTER 724 A command SENSe POWer CALCulate MODe syntax SENSe 1 2 POWer CALCulate MODe wsp mode description This command sets the measurement and display mode for all polarization dependent measu...

Page 144: ...OD ENTER 724 A command SENSe POWer HEAD syntax SENSe 1 2 POWer HEAD description This query returns information about the optical head connected to the specified channel It can be used any time paramet...

Page 145: ...onding number If you choose head A ABS 0 Absolute power measurement REL1 1 Relative measurement A Ref REL2 2 Relative measurement A B If you choose head B ABS 0 Absolute power measurement REL1 1 Relat...

Page 146: ...nd SENSe POWer OPTimize syntax SENSe 1 2 POWer OPTimize wsp mode description This command optimizes the optical heads attached to the OLA for PDL measurement or for high sensitivity Note This command...

Page 147: ...A command SENSe POWer REFerence syntax SENSe 1 2 POWer REFerence wsp value description This command sets the reference reflection RL ref to the specified value It is only applicable to the Return Los...

Page 148: ...After starting the application wait ca 2 s before issuing this command parameter 1 2 1 Reads head A 2 Reads head B Default is 1 errors The message Wrong application for this command is returned if th...

Page 149: ...nsertion Loss PDL Insertion Loss Coupler Test Directivity and Powermeter parameter 1 2 1 Checks head A 2 Checks head B Default is 1 response A boolean value 0 The reference has been taken with the oth...

Page 150: ...ence DISPlay PPAR SENSe POWer REFerence SENSe POWer REFerence DISPlay PREF example OUTPUT 724 SENS1 POW REF DISP PPAR command SENSe POWer REFerence DISPlay PPAR syntax SENSe 1 2 POWer REFerence DISPla...

Page 151: ...DISPlay PREF SENSe POWer REFerence SENSe POWer REFerence DISPlay PPAR example OUTPUT 724 SENS1 POW REF DISP PREF command SENSe POWer REFerence DISPlay PREF syntax SENSe 1 2 POWer REFerence DISPlay PR...

Page 152: ...ication is not one of those listed above The message No head connected is returned if the reference was not taken from the specified head related commands SENSe POWer REFerence DISPlay example OUTPUT...

Page 153: ...y be present but is ignored The unit is valid for both channels Unit When the Powermeter application is active DBM W 0 1 You can enter either the mnemonic or the corresponding number DBM 0 Measurement...

Page 154: ...2 POWer UNIT description This query returns the current setting of the measurement unit It is only applicable to the applications Coupler Test Polarization Dependent Coupler Test and Powermeter param...

Page 155: ...e to the Powermeter application parameter 1 2 The channel parameter 1 or 2 may be present but is ignored The setting affects both channels Unit m meter mm millimeter um micrometer nm nanometer pm pico...

Page 156: ...he measurement window used for calculating the Min Max value It is only applicable to the Powermeter Min Max application parameters 1 2 The channel parameter 1 or 2 may be present but is ignored The s...

Page 157: ...t MINMax related commands SENSe POWer WINDow MODe example OUTPUT 724 SENS POW WIND MOD ENTER 724 A command SENSe POWer WINDow SIZe syntax SENSe 1 2 POWer WINDow SIZe wsp value description This command...

Page 158: ...cts both channels response The number of samples which constitutes the window 50 100 500 or 1000 related commands SENSe POWer WINDow SIZe example OUTPUT 724 SENS POW WIND SIZ ENTER 724 A command SOURc...

Page 159: ...t equipped with the dual source option It can be used any time It is ignored if the OLA has only a single source parameter Source You enter one of the following keywords LOWer Switches to 1310 nm UPPe...

Page 160: ...ive error numbers are device dependent Negative error numbers are defined by the SCPI standard An error code of 0 indicates that there are no errors in the queue For a list of the error messages and e...

Page 161: ...to the method of programming the instrument Example 1 Checking the Communication Function This program sends two queries and displays the responses Listing 10 20 30 HP E5574A OLA Programming Example 1...

Page 162: ...OPT 310 ENTER OLA String 320 PRINT TABXY 10 13 Options String 330 340 END Example 2 Reading Power and Storing the Reference For this program to work you need an optical head attached to input A The op...

Page 163: ...TPUT OLA SOURCE POW STAT ON 260 270 Activate Powermeter set measurement unit to dBm 280 290 OUTPUT OLA SENS FUNC MAIN 300 OUTPUT OLA SENS FUNC POW 310 OUTPUT OLA SENS POW UNIT DBM 320 330 Take measure...

Page 164: ...162 HP IB Programming Programming Examples 470 OUTPUT OLA SENS1 POW REF DISP 480 490 END Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 165: ...A A Installation and Maintenance Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 166: ...installation instructions for the E5574A It also includes information about initial inspection and damage claims preparation for use packaging storage and shipment Artisan Technology Group Quality Ins...

Page 167: ...the container or cushioning keep them until you have checked the contents of the shipment for completeness and verified the instrument both mechanically and electrically CAUTION Take care of the yello...

Page 168: ...wire power cable When connected to an appropriate AC power receptacle this cable earths the instrument cabinet The type of power cable shipped with each instrument depends on the country of destinati...

Page 169: ...not interrupt the protective earth connection intentionally The following work should be carried out by a qualified electrician All local electrical codes must be strictly observed If the plug on the...

Page 170: ...o 2110 0304 The fuse holder is at the rear of the instrument beside the line power connector How to Replace the Fuse 1 Release the fuse holder use the blade of a flat headed screwdriver to depress the...

Page 171: ...it until the catch clicks back into place Replacing the Battery This instrument contains a lithium battery Replacing the battery should be carried out only by a qualified electrician or by HP service...

Page 172: ...ts NOTE Protect the instrument from temperature extremes and changes in temperature that may cause condensation within it AC line Voltage Requirements 100 240 V 50 60 Hz Maximum Power Requirements 100...

Page 173: ...o provide adequate air clearance may result in excessive internal temperature reducing instrument reliability Optical Output CAUTION Make sure that you only use the correct cables with your chosen out...

Page 174: ...ed on this network are as follows The total cable length cannot exceed 20 meters The maximum cable length per device is 2 meters No more than 15 devices may be interconnected on one bus Connector The...

Page 175: ...tor lock screws Do not use a screwdriver HP IB Logic Levels The E5574A HP IB lines use standard TTL logic as follows True Low digital ground or 0 Vdc to 0 4 Vdc False High open or 2 5 Vdc to 5 Vdc All...

Page 176: ...g material may be reusable but the Hewlett Packard Sales Service Office will provide information and recommendation on materials to be used if the original packing is no longer available or reusable G...

Page 177: ...B B Accessories Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 178: ...gle mode optical components It is available in various configurations for the best possible match to the most common applications This appendix provides information on the available options and access...

Page 179: ...1310 nm Option 015 Fabry Perot Laser Source 1550 nm Option 135 Dual Wavelength Fabry Perot Laser Source 1310 1550 nm Option 020 Pigtail optical output connector A 9 125 m fiber pigtail with an FC PC c...

Page 180: ...ors on the following cables and adapters Model No Description HP 10833A HP IB Cable 1 m 3 3 ft HP 10833B HP IB Cable 2 m 6 6 ft HP 10833C HP IB Cable 4 m 13 2 ft HP 10833D HP IB Cable 0 5 m 1 6 ft HP...

Page 181: ...se insertion loss and may damage the optical input Pigtail Optical Output Connector The fiber pigtail optical output consists of a 9 125 m fiber pigtail with an FC PC connector attached Straight Conta...

Page 182: ...Optical Heads You will need at least one connector adapter for each optical head HP 81000GI D4 HP 81000KI SC HP 81000SI DIN 47256 HP 81000VI ST HP 81000WI Biconic Model No Description Model No Descrip...

Page 183: ...P 81000GA NEC D4 HP 81000KA SC HP 81000SA DIN 47256 4108 HP 81000VA ST HP 81000WA Biconic Model No Description Model No Description P N 5062 3988 Front Handle Kit P N 5062 3974 Rack Mount Flange Kit A...

Page 184: ...182 Appendix B Accessories Connector Interfaces and Other Accessories Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 185: ...C C Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 186: ...184 Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 187: ...pecified operating temperature and within a given time line voltage uninterrupted Center Wavelength The wavelength defined as wavelength in air and by the center of gravity of the spectral emission Th...

Page 188: ...been covered The PDL PDG uncertainty includes all random and systematic uncertainties from the source the polarization controller and the optical power meter PDL is measured by applying random polariz...

Page 189: ...aximum and minimum value of all differences Absolute PDCR uncertainty The PDCR uncertainty includes all random and systematic uncertainties from the source the polarization controller and the optical...

Page 190: ...ns 1 At the following reference conditions Power level 10 W 20 dBm continuous wave CW Parallel beam 3mm spot diameter on detector Ambient temperature 23 C 5K At day of calibration add 0 3 for aging ov...

Page 191: ...2 2 1000 1650 nm 2 2 1000 1600 nm 3 0 900 1600 nm Total uncertainty 2 4 50 pW 5 4 600 pW 6 1000 1650 nm 4 50 pW 1000 1650 nm 4 5 pW 1000 1600 nm 5 500 pW 900 1600 nm Linearity power 0 to 60 dBm 5 0 to...

Page 192: ...Display resolution 0 001 dB Output power 1 10 dBm 8 dBm typ 10 dBm 8 dBm typ 10 dBm 8 dBm typ CW Stability 15 min T const 0 004 dB typ 0 004 dB typ 0 004 dB typ Backreflection sensitivity typ 0 001 d...

Page 193: ...ainty 3 with higher insertion loss or source power 10 dBm PDL PDG PDCR values may be measured with increased uncertainty Central wavelength with internal source 1310 20 nm and or 1550 2 0nm Wavelength...

Page 194: ...HP 8153A lightwave multimeter compliant command set where applicable HP IB Interface Function Code SH1 AH1 T6 L4 SR1 RL1 PP0 DC1 DT0 C0 Environmental Storage temperature 40 C to 70 C Operating temper...

Page 195: ...D D Performance Test Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 196: ...194 Performance Test Use the Performance Test to verify the instruments warranted performance Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 197: ...HP 81553SM 1550nm Laser Source Module OR HP 81554SM 1310 1550nm Laser Source Module Wavelength Uncertainty 1 5 nm Wavelength Uncertainty 1 5 nm 1 1 1 1 1 1 1 1 1 Optical Attenuator HP 8156A Option 101...

Page 198: ...and tests Test V PDL PDG uncertainty 020 only Test VI Repeatability PDL PDG using this head and OLA Head Input B If your OLA has only one HP 81521B 001 Head repeat tests Test V PDL PDG uncertainty 02...

Page 199: ...ress INSTR 2 Select Source 3 Press 1310 NM or 1550 NM to get the desired wavelength 4 Press SOURCE ON OFF to enable the source Wavelengths for the Different Laser Options 013 set wavelength to 1310 nm...

Page 200: ...r 3 To show the display on the OSA in linear mode a Press MENU b Select AMPT on the left side of the display c Press LINEAR on the right side of the display 4 To ensure interference free reading of th...

Page 201: ...ed up and that the laser has settled 2 Zero the HP 8153A a Mount the protection cap on the head in order to keep the light out b Press MENU to change to Measure Mode c Press ZERO and wait while zeroin...

Page 202: ...l the wavelength is displayed Use modify keys to edit the wavelength 4 Note the displayed power level in the test report Test III CW Stability Short Term 1 Set up and switch on the equipment a Connect...

Page 203: ...Press PARAM until the averaging time is displayed Use the modify keys to change to 100ms c Select display in dB Press DB d Set wavelength to the actual wavelength Press PARAM until the wavelength is...

Page 204: ...Note the displayed value in your test record Test IV Linearity and Accuracy The following steps describe the procedure for performing the accuracy test for the HP E5574A 81521B 001 Figure D 4 Accurac...

Page 205: ...head connector adapters covered with plastic caps P N 5040 9361 or 5040 9351 5 First set the wavelength of the Laser Source to 1310 nm After performing the Linearity Accuracy test set the wavelength...

Page 206: ...ess ZERO 3 Ensure that the Laser Source is enabled and enable the HP 8156A output 4 Set up the HP 8153A a Switch off autoranging Press AUTO b Select the 20 dBm range Use the UP and DOWN keys until 20...

Page 207: ...splayed in dB as R1 in the test record 8 In the 10 dBm range a Set the display to show results in dBm b Alter the attenuation until the DUT displays 7 4 dBm c Press DISP REF then DB d Select the 0 dBm...

Page 208: ...onnect the second HP 81521B 001 Head to Head Input B b Ensure that the instruments have warmed up and that the laser has settled 2 Set up the OLA a Optimize the OLA for PDL measurement Press PRESET an...

Page 209: ...stable value after the window full marker is shown at the display in the test record 5 Move the fiber and the optical head to another position see Figure D 7 but don t move the equipment while measuri...

Page 210: ...ser has settled 2 Set up the OLA a Optimize the OLA for PDL measurement Press PRESET and then press OPTIMIZE to change to PDL b Select Polarization Dependent Loss Application Press APPL select Pol Dep...

Page 211: ...d Unmount the protection cap and connect the equipment as shown in Figure D 8 4 PDL Measurement a Press RESET b Note the first stable value after the window full marker is shown at the display in the...

Page 212: ...is part of your OLA perform the test again with this Head b Ensure that the instruments have warmed up c Mount the protection cap on the head in order to keep the light out 2 Zero the HP 8153A a Pres...

Page 213: ...the modify cursor keys c Set AUTODUMP OFF Press NEXT and use modify cursor keys to set autodump to off 5 Execute measurement a Press EDIT to get back to STABILITY b Press EXEC to execute datalogging c...

Page 214: ...Uncertainty Repeatability for PDCR It is guaranteed by design that PDCR performance uncertainty and repeatability directly relates to the performance of the two optical sensors used in PDCR measuremen...

Page 215: ...rformance Test Form Sheets Performance Test Form Sheets Please use copies of the following 6 form sheets for your individual performance tests Artisan Technology Group Quality Instrumentation Guarante...

Page 216: ...______________ Hz Test equipment used Description 1 Optical Spectrum Analyzer 2 Attenuator 3 Std Lightwave Multimeter 4 Std Optical Head Interface 5 Std Optical Head 6 Lightwave Multimeter 7 Optical H...

Page 217: ..._________ _________ nm 1330 00 1570 00 __________ nm II Output Power fiber type 9 125 m SM performed at 1310 nm performed at 1550 nm dBm 10 00 8 00 typ 10 00 8 00 typ dBm _________ _________ dBm n a n...

Page 218: ...y Test Accuracy 9 75 W _______ W 10 25 W ________ W Linearity Range Power dBm dB 10 dBm 20 dBm 0 dBm 10 dBm 20 dBm 30 dBm 30 dBm 40 dBm 17 4 7 4 27 4 37 4 Disp Ref Disp Ref Disp Ref Disp Ref ______ R1...

Page 219: ...t 6 measurement 7 measurement 8 measurement 9 measurement 10 measurement 11 measurement 12 measurement 13 measurement 14 measurement 15 measurement 16 measurement 17 measurement 18 measurement 19 meas...

Page 220: ...8 measurement 9 measurement 10 measurement 11 measurement 12 measurement 13 measurement 14 measurement 15 measurement 16 measurement 17 measurement 18 measurement 19 measurement 20 measurement Repeat...

Page 221: ...Spec Result Maximum Spec Measurement Uncertainty VII Noise fiber type 9 125 m SM 30 seconds T constant DIFF Level variation peak to peak Optional Noise test with second HP 81521B 001 Head as part of...

Page 222: ...220 Appendix D Performance Test Performance Test Form Sheets Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 223: ...E E Cleaning Procedure Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 224: ...into the end of an optical cable attached to the optical output when the device is operational The laser radiation is not visible to the human eye but it can seriously damage your eyesight WARNING To...

Page 225: ...ndness or other serious damage to your health Cotton swabs Use swabs such as Q tips or other cotton swabs These are typically available from local distributors of medical or hygiene products such as s...

Page 226: ...r pipe cleaner carefully and never reuse them as dust and dirt from the air or from previous cleaning can scratch and dirty your optical device Compressed Air This is available from laboratory supplie...

Page 227: ...r optical device is scratched Ultrasonic bath These are typically available from photographic stores or laboratory suppliers An ultrasonic bath very gently removes greasy and other stubborn dirt from...

Page 228: ...ning extremely sensitive devices such as mirrors Infrared sensor card This is typically available from laboratory suppliers With this card you can qualitatively check the uniformity of your emitted la...

Page 229: ...ot press the bottom of the cap onto the fiber as any dust in the cap can scratch or dirty your fiber surface When you have finished cleaning put the dust cap back on or close the shutter cap if the eq...

Page 230: ...vice first Cleaning Cable Connectors Cleaning connectors is difficult as the core diameter of a singlemode fiber is only about 9 m This generally means you cannot see streaks or scratches on the surfa...

Page 231: ...h isopropyl alcohol 2 Clean the connector by rubbing the cotton swab over the surface using a small circular movement 3 Take a new dry soft tissue and remove the alcohol dissolved sediment and dust by...

Page 232: ...cular movement 2 Blow away any remaining lint with compressed air Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the adapter 1 Moisten a new cotton swab with...

Page 233: ...ace using a small circular movement 3 Blow away any remaining lint with compressed air Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the interface 1 Moisten...

Page 234: ...or dirt with compressed air Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the adapter CAUTION Be careful when using pipe cleaners as the core and the bristl...

Page 235: ...Take extra care when cleaning lenses with these coatings Lens assemblies consisting of several lenses are not normally sealed Therefore use as little alcohol as possible as it can get between the len...

Page 236: ...Preferred Procedure 1 Blow away any dust or dirt with compressed air Procedure for Stubborn Dirt Use this procedure particularly when there is greasy dirt on the lens CAUTION Only use water if you ar...

Page 237: ...2 Take a new dry soft tissue and remove the alcohol dissolved sediment and dust by rubbing gently over the surface using a small circular movement 3 Blow away remaining lint with compressed air Clean...

Page 238: ...it has been removed after cleaning you need a microscope WARNING Never look into an optical output because this can seriously damage your eye sight To assess the projection of the emitted light beam y...

Page 239: ...ubborn Dirt Use this procedure particularly when there is greasy dirt on the interface and using the procedure for light dirt is not sufficient Using isopropyl alcohol should be your last choice for r...

Page 240: ...film This procedure is time consuming but you avoid scratching or destroying the surface 1 Put the film on the surface and wait at least 30 minutes to make sure that the film has had enough time to d...

Page 241: ...ed by becoming mechanically distorted Preferred Procedure 1 Use compressed air at a distance and with low pressure to remove any dust or lint Procedure for Stubborn Dirt Do not use an ultrasonic bath...

Page 242: ...240 Appendix E Cleaning Procedure Cleaning Procedures Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 243: ...F F Error Messages Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 244: ...ituations when the OLA does not know what to do If this occurs the instrument will question you This appendix provides information on these questions Artisan Technology Group Quality Instrumentation G...

Page 245: ...ted and you start the applications Coupler Test or PD Coupler Test respectively P P par You may encounter this message when measuring Return Loss It appears whenever the optical power which is current...

Page 246: ...199 These are error messages in the range 100 to 199 They show that a syntax error has been detected by the parser in a command such as incorrect data incorrect commands or misspelled or mistyped com...

Page 247: ...arameters were received for a command than were expected 109 Missing parameter Fewer parameters were received than the command requires 110 Command header error A command header is the mnemonic part o...

Page 248: ...aracter in a decimal data or a 9 in octal data 123 Exponent too large The exponent must be less than 32 000 124 Too many digits The mantissa of a decimal number can have a maximum of 255 digits leadin...

Page 249: ...allowed 150 String data error This error shows that the parser has found an error in string data but cannot be more specific 151 Invalid string data The string data is incorrect for example an END me...

Page 250: ...e in local This command is invalid because in conflicts with the configuration under local control 202 Settings lost due to rtl A local setting was lost when the instrument was changing from remote to...

Page 251: ...xecuted because of missing instrument hardware Device Specific Errors 300 to 399 These are error messages in the range 300 to 399 or between 1 and 32767 They show that an error has been detected that...

Page 252: ...00 to 499 They show that an error has been detected by the output queue control A query error is signalled by the query error bit bit 2 in the event status register 400 Query error This shows that a q...

Page 253: ...output buffer are full and the device cannot continue 440 Query unterminated after indefinite response Two queries were received in the same message The error occurs on the second query if the first...

Page 254: ...252 Appendix F Error Messages HP IB Messages Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 255: ...components of the OLA 23 connector adapters for optical heads 180 interfaces 179 to HP IB 172 cooling the instrument 171 coupler test application 66 parameters 66 coupling ratio 66 72 measurement spe...

Page 256: ...nstructions 164 INSTR key 28 instrument positioning 171 instrument specific errors 244 internal laser 83 K keypad 27 keys on the front panel 26 knob 29 L laser source external 84 internal 83 safety in...

Page 257: ...8 CW stability short term 200 equipment 195 form sheets 213 linearity and accura cy 202 noise 210 output power 199 PDL PDG uncertain ty 020 on ly 206 repeatability PDL PDG 208 setup and perform ance 1...

Page 258: ...eturn loss application 58 RL 58 64 rotary knob 29 RST 114 S safety considerations 165 safety information for laser source 6 Safety Summary 4 Safety Symbols 5 SAV 115 SCAN commands 127 scan rate change...

Page 259: ...traight contact connector 179 sweeping through all states of polarization 85 SYST key 91 SYSTem commands 158 system configuration 91 T technical data 188 termination of the automat ic sweep 86 test eq...

Page 260: ...uipment 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 documentat...

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