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Agilent Technologies 8156A manual Using your Attenuator as a Variable Back Reflector

Models: 8156A

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Using your Attenuator as a Variable Back Reflector

This chapter describes how you can use your attenuator as a variable back reflector. An example using the back reflector kit (option 203 with option 201) is given at the end of the chapter.

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Agilent Technologies 8156A manual Using your Attenuator as a Variable Back Reflector

Contents

3URJUDPPLQJ*XLGH Warranty 6DIHW\6XPPDU\ 2127235$7,1$13/26,9$70263+5 2WKHU6DIHW\,QIRUPDWLRQ DUQLQJVDQG&DXWLRQV 6DIHW\6\PEROV $ERXW7KLV0DQXDO 6HUYLFHDQG6XSSRUW Page Example, Setting the Calibration Using the AttenuatorSetting Up the Hardware Setting Up the Attenuation Configuring the HardwareSetting the Gpib Address Configuring the Hardware Setting Up the SoftwareExample, Setting a Return Loss Automatic SweepSelecting the Setting used at Power-On Selecting the Through-Power ModeSetting the Display Brightness Selecting the Shutter State at Power OnUnits Command Summary Common Commands Some Notes about Programming and Syntax DiagramConventions OUTPut Commands 110 DISPlay Commands 104INPut Commands 106 STATus Commands 114Temperature 148 Humidity Instrument Positioning and Cooling User Calibration Commands 123Switching on the Attenuator 149 Operating and Storage Environment 148Monitor Output 149 Optical Output 150 Definition of Terms 165 Specifications 167Other Specifications 171 Declaration of Conformity 172 Gpib Interface 150Polarization Dependent Loss PDL Optional Preserving Connectors 256Polarization Dependant Loss Test Mueller method 192 How to clean connector interfaces 260 How to clean connectors 258How to clean connector adapters 259 How to clean bare fiber adapters 261How to clean metal filters or attenuator gratings How to clean instruments with a recessed lens interHow to clean optical devices which are sensitive to me Additional Cleaning Information 268276 Table of Contents List of Figures Figure D-6 List of Tables List of Tables Getting Started Getting Started Using the Attenuator Using the AttenuatorUsing the Modify Keys Attenuator KeysMaking an Automatic Sweep Making an Attenuation SweepMaking an Attenuation Sweep Manual Sweep Manual SweepParameters for an Automatic Sweep Using your Attenuator as a Variable Back Reflector Using your Attenuator as a Variable BackReflector Using the Through-Power Mode Using the Through-Power ModeSelecting the Wavelength Calibration and Its Function Selecting the Wavelength Calibration and Its Function Using the Attenuator Using the Attenuator Setting Up the Hardware Setting Up the HardwareEntering the Attenuation Factor Setting Up the AttenuationSetting Up the Attenuation Attenuation Factor on the DisplayCalibration Factor on the Display Resetting the Attenuation FactorEntering a Calibration Factor Editing the Calibration FactorEntering the Wavelength Resetting the Wavelength Wavelength on the DisplayExample, Setting the Calibration Example, Setting the CalibrationHardware Configuration for Attenuation Example a Hardware Configuration for Attenuation Example B Power of the sourceWarmup. The multimeter needs around 20 minutes to warmup. Example, Setting the Calibration Making an Attenuation Sweep Making an Attenuation Sweep Configuring the Hardware Configuring the HardwareAutomatic Sweep Setting Up an Automatic SweepAutomatic Sweep Editing the Parameters Starting the Setting UpSelecting the Automatic Sweep Application Resetting the Parameters Executing the Automatic SweepRestarting the Sweep Setting Up a Manual SweepRepeating the Sweep Running the Automatic SweepStarting the Setting Up Editing the Stop ParameterExecuting the Manual Sweep Running the Manual SweepChanging the Attenuation in a Manual Sweep Resetting, or store their setting for later recallExample, an Automatic Attenuation Sweep Example, an Automatic Attenuation SweepExample, an Automatic Attenuation Sweep Example, an Automatic Attenuation Sweep Using your Attenuator as a Variable Back Reflector Using your Attenuator as a Variable Back Reflector Using your Attenuator as a Variable Back Reflector Editing the Setup Setting Up the SoftwareSetting Up the Software Executing the Back Reflector Application Editing the Value for the Reference Return LossExample, Setting a Return Loss Example, Setting a Return LossHardware Configuration for Variable Return Loss Resetting, or store their setting for later recallExample, Setting a Return Loss Setting Up the System Setting Up the System Resetting the Gpib Address Setting the Gpib AddressSetting the Gpib Address Resetting the Function of the Wavelength Calibration Data Setting the Function of the Wavelength CalibrationLambdcal Indicator on the Display Temperature changes, you should not use the user wavelength Resetting the Wavelength Calibration Data SetIf you are using the instrument in an environment where Usercal Indicator on the DisplaySelecting the Through-Power Mode Selecting the Through-Power ModeDisplay in Through-Power Mode Resetting the Through-Power Mode Setting the Display BrightnessDeselecting the Through-Power Mode Resetting the Display BrightnessSelecting the Setting used at Power-On Selecting the Setting used at Power-OnResetting the Power-On Setting Locking Out ENB/DISResetting the Shutter State at Power On Selecting the Shutter State at Power OnResetting the ENB/DIS Lock Out Selecting the Shutter State at Power OnResetting the Display Resolution Setting the Display ResolutionSetting the Display Resolution Storing and Recalling Settings Storing and Recalling Settings Resetting the Instrument Storing the SettingRecalling a Setting Recalling a User SettingRecalling a Setting Programming the Attenuator Programming Attenuator Gpib Interface Gpib InterfaceGpib Capabilities Mnemonic Function AH1How the Attenuator Receives and Transmits Messages Returning the Instrument to Local ControlHow the Input Queue Works Output Queue Error QueueClearing the Input Queue How the Attenuator Receives and Transmits MessagesSome Notes about Programming and Syntax Diagram Conventions Some Notes about Programming and Syntax Diagram ConventionsShort Form and Long Form Value Command and Query SyntaxString WspRemote Commands Remote Commands Common Command Summary Command SummaryUnits and Allowed Mnemonics Default UnitsCommand Summary Command ListValueMINDE DB Value 32768 32767 Common Commands Common CommandsCommon Status Information SRQ, The Service Request Common Status RegistersSyntax DefinitionEvent Status Enable Register ExampleStandard Event Status Register Bits Mnemonics BIT ValueOPC RCL Reset State Default Setting Parameter Reset Value SAVService Request Enable Register SRENo T EBit 6 cannot be masked Status Byte RegisterTST? Self Test ResultsDISPlayBRIGhtness DISPlay CommandsDISPlay Commands DISPlayBRIGhtness?DISPlayENABle? DISPlayENABleDescription INPutATTenuation INPut CommandsINPut Commands INPutATTenuation?INPutLCMode? INPutLCModeINPutOFFSet INPutOFFSet? INPutOFFSetDISPlayINPutWAVelength INPutWAVelength? OUTPut CommandsOUTPut Commands OUTPutAPModeAbsolute power mode off automatically Using any of the INPutATTenuation commands or queries, orAny of the INPutOFFSet commands or queries, switches OUTPutAPMode?OUTPutPOWer OUTPutSTATe OUTPutPOWer?OUTPutSTATe? OUTPutSTATeAPOWeron? STATus CommandsOUTPutSTATeAPOWeron STATus CommandsSTATus Commands STATusOPERationCONDition? Status RegistersSTATusOPERationENABle? STATusOPERationENABleSTATusOPERationEVENt? STATusOPERationNTRansition? STATusOPERationNTRansitionSTATusOPERationPTRansition STATusOPERationPTRansition? STATusQUEStionableENABleSTATusQUEStionableCONDition? STATusQUEStionableEVENt? STATusQUEStionableENABle?STATusQUEStionableNTRansition STATusQUEStionablePTRansition STATusQUEStionableNTRansition?STATusQUEStionablePTRansition? SYSTemERRor? SYSTem CommandsSTATusPRESet SYSTem CommandsUser Calibration Commands User Calibration CommandsEntering the User Calibration Data Power = -Power UCALibrationSTARtUCALibrationSTARt? UCALibrationSTATeUCALibrationSTOP UCALibrationSTATe?UCALibrationVALue UCALibrationVALue? 128 Programming Examples Programming Examples Listing Example 1 Checking CommunicationFunction Example 1 Checking CommunicationExample 2 Status Registers and Queues Example 2 Status Registers and Queues133 134 Requirements Setting Up the EquipmentExample 3 Measuring and Including the Insertion Loss Example 3 Measuring and Including the Insertion LossInclude the attenuator 137 138 Example 4 Running an Attenuation Sweep Example 4 Running an Attenuation Sweep140 Installation Installation Safety Considerations Safety ConsiderationsInitial Inspection Line Power Cable AC Line Power Supply RequirementsAC Line Power Supply Requirements Figure A-2 Rear Panel Markings Replacing the Battery Replacing the FuseFigure A-3 Releasing the Fuse Holder Humidity TemperatureOperating and Storage Environment Instrument Positioning and CoolingSwitching on the Attenuator Switching on the AttenuatorMonitor Output Disabling the Optical Output Optical OutputOptical Output Connector Figure A-6Return Shipments to Agilent Technologies Claims and RepackagingGpib Logic Levels Claims and RepackagingClaims and Repackaging 154 Accessories Accessories Instrument and Options Instrument and OptionsGpib Cables and Adapters Table B-1 Mainframe Description Model NoStraight Contact Connector Connector Interfaces and Other AccessoriesConnector Interfaces and Other Accessories Accessories Option 201, Angled Contact Connector Figure B-2 Angled Contact Connector ConfigurationTable B-3 Connector Interface Description AgilentModel No 162 Specifications Specifications Definition of Terms Definition of TermsRepeatability Polarization mode dispersionReturn loss Specifications SpecificationsTable C-2 Monitor Output Options Monitor Output typOperating Modes Supplementary Performance CharacteristicsTable C-3 Multimode Options Wavelength Range General EnvironmentalOther Specifications Other SpecificationsPower Acoustic Noise Emission GeräuschemissionswerteDeclaration of Conformity Declaration of ConformityPerformance Tests Performance Tests Equipment Required Equipment Required176 Test Failure Instrument SpecificationTest Record Test RecordPerformance Test Performance TestTotal Insertion Loss Test SpecificationsTyp Figure D-2 Total Insertion Loss Test Setup 1, Options 201 Figure D-3 Total Insertion Loss Test Setup 1, OptionFigure D-5 Total Insertion Loss Test Setup 2, Options 201 Specifications Agilent 8156A II. Linearity/Attenuation Accuracy TestTo 0.00 dB Measurement to prevent changes of state of polarizationIII. Attenuation Repeatability Test Figure D-7 Return Loss Test Setup 1, Options 100, 101 IV. Return Loss Test Options 100, 101,No T E Figure D-8 Return Loss Test Setup 2, Options 100 Options 201Figure D-10 Return Loss Test Setup 1, Options 201 Figure D-11 Return Loss Test Setup 2, Option Monitor output is terminatedFigure D-12 Return Loss Test Setup 2, Option Polarization Dependent Loss PDL Optional V. Polarization Dependent Loss PDL OptionalTable D-2 Equipment for the PDL test Figure D-13 PDL Test Setup 1 Reference Measurement Polarization Dependant Loss Test Mueller methodIsolator must not move during and between all measurements Until these are finishedSet plates for Linear Horizontal polarization Polarization Dependent Loss PDL Optional Linear vertical Linear diagonal RH circular Measure the Reference PowerPolarization Polarization Dependent Loss PDL Optional Set the 8156A Attenuator DUT to 0dB using the modify keys Head must not move until the measurements are finishedPolarization Dependent Loss PDL Optional Table D-3 Performance Test Agilent 8156A Performance Test for the Agilent 8156A Polarization Dependent Loss PDL Optional Performance Test for the Agilent 8156A Option Result204 01dB + 0.01dB 206 207 208 Polarization Dependent Loss PDL Optional 210 211 Input 40dB 213 214 215 Polarization Dependent Loss PDL Optional 217 218 219 220 10.9dB 222 Polarization Dependent Loss PDL Optional 224 225 Input 55dB 227 228 229 Polarization Dependent Loss PDL Optional 231 232 233 234 235 236 Polarization Dependent Loss PDL Optional 238 239 01dB + 0.01dB 240 Test Facility Special NotesPolarization Dependent Loss Test Mueller Coefficients PolarizationMinimum and maximum transmission Polarization Dependent LossOption Wavelength 1550nm nominal Polarization Dependent Loss PDL Optional Cleaning Information Cleaning Information Cleaning Instructions for this InstrumentWhy is it important to clean optical devices ? Safety PrecautionsSafety Precautions Standard Cleaning Equipment What do I need for proper cleaning?What do I need for proper cleaning? Isopropyl alcohol Dust and shutter capsCotton swabs Soft tissues Pipe cleanerAdditional Cleaning Equipment Compressed airUltrasonic bath Microscope with a magnification range about 50X up toWarm water and liquid soap Polymer film Premoistened cleaning wipesInfrared Sensor Card Making Connections Preserving ConnectorsPreserving Connectors Dust Caps and Shutter CapsCleaning Instrument Housings Cleaning Instrument HousingsWhich Cleaning Procedure should I use ? Light dirtProcedure for Stubborn Dirt How to clean connectorsPreferred Procedure How to clean connectorsAn Alternative Procedure How to clean connector adaptersHow to clean connector adapters How to clean connector interfaces How to clean connector interfacesHow to clean bare fiber adapters How to clean bare fiber adaptersHow to clean lenses How to clean lensesHow to clean instruments with a fixed connector interface How to clean instruments with a fixed connector interfaceSystem How to clean instruments with a physical contact interface How to clean instruments with an optical glass plateHow to clean instruments with an optical glass plate Agilent Technologies 81633A and 81634A Power Sensors do not How to clean instruments with a recessedHow to clean instruments with a recessed lens interface Lens interfacePreferred Procedure Alternative Procedure Additional Cleaning Information How to clean metal filters or attenuator gratingsHow to clean metal filters or attenuator gratings How to clean large area lenses and mirrors How to clean bare fiber endsAdditional Cleaning Information It, because they can scratch and damage your device Alternative Procedure aDamage your device RemainsLens cleaning papers Other Cleaning HintsAlternative Procedure B Other Cleaning HintsCleaning the housing and the mainframe Immersion oil and other index matching compoundsError messages Error Messages Hexadecimal Display MessagesDisplay Messages Bits Mnemonics ValueGpib Messages Numeric data error Command header errorHeader separator error Parameter not allowedInvalid character in number Suffix errorCharacter data error Exponent too largeInvalid character data String data errorBlock data error Character data too longSettings lost due to rtl Execution ErrorsExecution error Parameter errorDevice-specific error Hardware errorDevice-Specific Errors System errorQuery error Configuration memory lostQuery Errors Save/recall memory lostQuery Unterminated after indefinite response Instrument Specific ErrorsQuery Deadlocked 201284 Symbols IndexHP-IB Lockout Resolut Thrupowr