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Page
 Setting Up the Hardware Setting Up the Attenuation
Using the Attenuator
Example, Setting the Calibration
Configuring the Hardware
 Example, Setting a Return Loss
Configuring the Hardware Setting Up the Software
Setting the Gpib Address
Automatic Sweep
 Setting the Display Brightness
Selecting the Through-Power Mode
Selecting the Setting used at Power-On
Selecting the Shutter State at Power On
 Units Command Summary Common Commands
Some Notes about Programming and Syntax Diagram
Conventions
 INPut Commands 106
DISPlay Commands 104
OUTPut Commands 110
STATus Commands 114
 Switching on the Attenuator 149
User Calibration Commands 123
Temperature 148 Humidity Instrument Positioning and Cooling
Operating and Storage Environment 148
 Other Specifications 171 Declaration of Conformity 172
Definition of Terms 165 Specifications 167
Monitor Output 149 Optical Output 150
Gpib Interface 150
 Polarization Dependent Loss PDL Optional
Preserving Connectors 256
Polarization Dependant Loss Test Mueller method 192
 How to clean connector adapters 259
How to clean connectors 258
How to clean connector interfaces 260
How to clean bare fiber adapters 261
 How to clean optical devices which are sensitive to me
How to clean instruments with a recessed lens inter
How to clean metal filters or attenuator gratings
Additional Cleaning Information 268
 276
 Table of Contents
 List of Figures
 Figure D-6
 List of Tables
 List of Tables
 Getting Started
 Getting Started
 Using the Modify Keys
Using the Attenuator
Using the Attenuator
Attenuator Keys
 Making an Automatic Sweep
Making an Attenuation Sweep
Making an Attenuation Sweep
 Manual Sweep
Manual Sweep
Parameters for an Automatic Sweep
 Using your Attenuator as a Variable Back Reflector
Using your Attenuator as a Variable Back
Reflector
 Using the Through-Power Mode
Using the Through-Power Mode
Selecting 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 Hardware
 Setting Up the Attenuation
Setting Up the Attenuation
Entering the Attenuation Factor
Attenuation Factor on the Display
 Entering a Calibration Factor
Resetting the Attenuation Factor
Calibration Factor on the Display
Editing the Calibration Factor
 Entering the Wavelength
 Wavelength on the Display
Resetting the Wavelength
 Example, Setting the Calibration
Example, Setting the Calibration
Hardware Configuration for Attenuation Example a
 Hardware Configuration for Attenuation Example B
Power of the source
Warmup. 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 Hardware
 Automatic Sweep
Setting Up an Automatic Sweep
Automatic Sweep
 Editing the Parameters
Starting the Setting Up
Selecting the Automatic Sweep Application
 Executing the Automatic Sweep
Resetting the Parameters
 Repeating the Sweep
Setting Up a Manual Sweep
Restarting the Sweep
Running the Automatic Sweep
 Editing the Stop Parameter
 Running the Manual Sweep
Executing the Manual Sweep
 Example, an Automatic Attenuation Sweep
Resetting, or store their setting for later recall
Changing the Attenuation in a Manual Sweep
Example, an Automatic Attenuation Sweep
 Example, 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 Software
Setting Up the Software
 Editing the Value for the Reference Return Loss
Executing the Back Reflector Application
 Example, Setting a Return Loss
Example, Setting a Return Loss
 Hardware Configuration for Variable Return Loss
 Example, Setting a Return Loss
 Setting Up the System
 Setting Up the System
 Resetting the Gpib Address
Setting the Gpib Address
Setting the Gpib Address
 Resetting the Function of the Wavelength Calibration Data
Setting the Function of the Wavelength Calibration
Lambdcal Indicator on the Display
 If you are using the instrument in an environment where
Resetting the Wavelength Calibration Data Set
Temperature changes, you should not use the user wavelength
Usercal Indicator on the Display
 Selecting the Through-Power Mode
Selecting the Through-Power Mode
Display in Through-Power Mode
 Deselecting the Through-Power Mode
Setting the Display Brightness
Resetting the Through-Power Mode
Resetting the Display Brightness
 Resetting the Power-On Setting
Selecting the Setting used at Power-On
Selecting the Setting used at Power-On
Locking Out ENB/DIS
 Resetting the ENB/DIS Lock Out
Selecting the Shutter State at Power On
Resetting the Shutter State at Power On
Selecting the Shutter State at Power On
 Resetting the Display Resolution
Setting the Display Resolution
Setting the Display Resolution
 Storing and Recalling Settings
 Storing and Recalling Settings
 Recalling a Setting
Storing the Setting
Resetting the Instrument
Recalling a User Setting
 Recalling a Setting
 Programming the Attenuator
 Programming Attenuator
 Gpib Interface
Gpib Interface
 AH1
Gpib Capabilities Mnemonic Function
 How the Attenuator Receives and Transmits Messages
Returning the Instrument to Local Control
How the Input Queue Works
 Clearing the Input Queue
Error Queue
Output Queue
How the Attenuator Receives and Transmits Messages
 Some Notes about Programming and Syntax Diagram Conventions
Some Notes about Programming and Syntax Diagram Conventions
Short Form and Long Form
 String
Command and Query Syntax
Value
Wsp
 Remote Commands
 Remote Commands
 Units and Allowed Mnemonics Default
Command Summary
Common Command Summary
Units
 Command List
Command Summary
 ValueMINDE DB
 Value 32768 32767
 Common Commands
Common Commands
Common Status Information
 Common Status Registers
SRQ, The Service Request
 Definition
Syntax
 Example
Event Status Enable Register
 Bits Mnemonics BIT Value
Standard Event Status Register
 OPC
 RCL
 SAV
Reset State Default Setting Parameter Reset Value
 SRE
Service Request Enable Register
 Status Byte Register
No T EBit 6 cannot be masked
 Self Test Results
TST?
 DISPlay Commands
DISPlay Commands
DISPlayBRIGhtness
DISPlayBRIGhtness?
 DISPlayENABle?
DISPlayENABle
Description
 INPut Commands
INPut Commands
INPutATTenuation
INPutATTenuation?
 INPutLCMode?
INPutLCMode
INPutOFFSet
 INPutOFFSetDISPlay
INPutOFFSet?
 INPutWAVelength
 OUTPut Commands
OUTPut Commands
INPutWAVelength?
OUTPutAPMode
 Any of the INPutOFFSet commands or queries, switches
Using any of the INPutATTenuation commands or queries, or
Absolute power mode off automatically
OUTPutAPMode?
 OUTPutPOWer
 OUTPutSTATe
OUTPutPOWer?
OUTPutSTATe?
 OUTPutSTATeAPOWeron
STATus Commands
OUTPutSTATeAPOWeron?
STATus Commands
 STATus Commands
 Status Registers
STATusOPERationCONDition?
 STATusOPERationENABle?
STATusOPERationENABle
STATusOPERationEVENt?
 STATusOPERationNTRansition?
STATusOPERationNTRansition
STATusOPERationPTRansition
 STATusOPERationPTRansition?
STATusQUEStionableENABle
STATusQUEStionableCONDition?
 STATusQUEStionableEVENt?
STATusQUEStionableENABle?
STATusQUEStionableNTRansition
 STATusQUEStionablePTRansition
STATusQUEStionableNTRansition?
STATusQUEStionablePTRansition?
 STATusPRESet
SYSTem Commands
SYSTemERRor?
SYSTem Commands
 User Calibration Commands
User Calibration Commands
Entering the User Calibration Data
 UCALibrationSTARt
Power = -Power
 UCALibrationSTATe
UCALibrationSTARt?
 UCALibrationSTOP
UCALibrationSTATe?
UCALibrationVALue
 UCALibrationVALue?
 128
 Programming Examples
 Programming Examples
 Function
Example 1 Checking Communication
Listing
Example 1 Checking Communication
 Example 2 Status Registers and Queues
Example 2 Status Registers and Queues
 133
 134
 Example 3 Measuring and Including the Insertion Loss
Setting Up the Equipment
Requirements
Example 3 Measuring and Including the Insertion Loss
 Include the attenuator
 137
 138
 Example 4 Running an Attenuation Sweep
Example 4 Running an Attenuation Sweep
 140
 Installation
 Installation
 Safety Considerations
Safety Considerations
Initial Inspection
 Line Power Cable
AC Line Power Supply Requirements
AC Line Power Supply Requirements
 Figure A-2 Rear Panel Markings
 Replacing the Fuse
Replacing the Battery
 Figure A-3 Releasing the Fuse Holder
 Operating and Storage Environment
Temperature
Humidity
Instrument Positioning and Cooling
 Switching on the Attenuator
Switching on the Attenuator
Monitor Output
 Disabling the Optical Output
Optical Output
Optical Output
 Figure A-6
Connector
 Gpib Logic Levels
Claims and Repackaging
Return Shipments to Agilent Technologies
Claims and Repackaging
 Claims and Repackaging
 154
 Accessories
 Accessories
 Gpib Cables and Adapters
Instrument and Options
Instrument and Options
Table B-1 Mainframe Description Model No
 Straight Contact Connector
Connector Interfaces and Other Accessories
Connector Interfaces and Other Accessories
 Accessories
 Figure B-2 Angled Contact Connector Configuration
Option 201, Angled Contact Connector
 Table B-3 Connector Interface Description AgilentModel No
 162
 Specifications
 Specifications
 Definition of Terms
Definition of Terms
 Repeatability
Polarization mode dispersion
Return loss
 Specifications
Specifications
 Monitor Output typ
Table C-2 Monitor Output Options
 Operating Modes
Supplementary Performance Characteristics
Table C-3 Multimode Options Wavelength Range
 Environmental
General
 Power
Other Specifications
Other Specifications
Acoustic Noise Emission Geräuschemissionswerte
 Declaration of Conformity
Declaration of Conformity
 Performance Tests
 Performance Tests
 Equipment Required
Equipment Required
 176
 Test Record
Instrument Specification
Test Failure
Test Record
 Performance Test
Performance Test
 Total Insertion Loss Test
Specifications
Typ
 Figure D-3 Total Insertion Loss Test Setup 1, Option
Figure D-2 Total Insertion Loss Test Setup 1, Options 201
 Figure D-5 Total Insertion Loss Test Setup 2, Options 201
 II. Linearity/Attenuation Accuracy Test
Specifications Agilent 8156A
 Measurement to prevent changes of state of polarization
To 0.00 dB
 III. Attenuation Repeatability Test
 IV. Return Loss Test Options 100, 101,
Figure D-7 Return Loss Test Setup 1, Options 100, 101
 No T E
 Options 201
Figure D-8 Return Loss Test Setup 2, Options 100
 Figure D-10 Return Loss Test Setup 1, Options 201
 Monitor output is terminated
Figure D-11 Return Loss Test Setup 2, Option
 Figure D-12 Return Loss Test Setup 2, Option
 Polarization Dependent Loss PDL Optional
V. Polarization Dependent Loss PDL Optional
Table D-2 Equipment for the PDL test
 Polarization Dependant Loss Test Mueller method
Figure D-13 PDL Test Setup 1 Reference Measurement
 Until these are finished
Isolator must not move during and between all measurements
 Set plates for Linear Horizontal polarization
 Polarization Dependent Loss PDL Optional
 Linear vertical Linear diagonal RH circular
Measure the Reference Power
Polarization
 Polarization Dependent Loss PDL Optional
 Head must not move until the measurements are finished
Set the 8156A Attenuator DUT to 0dB using the modify keys
 Polarization Dependent Loss PDL Optional
 Table D-3 Performance Test Agilent 8156A
 Performance Test for the Agilent 8156A
 Polarization Dependent Loss PDL Optional
 Result
Performance Test for the Agilent 8156A Option
 204
 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
 Special Notes
Test Facility
 Polarization Dependent Loss Test
 Mueller Coefficients
 Minimum and maximum transmission
 Option Wavelength 1550nm nominal
 Polarization Dependent Loss PDL Optional
 Cleaning Information
 Cleaning Instructions for this Instrument
Cleaning Information
 Why is it important to clean optical devices ?
Safety Precautions
Safety Precautions
 Standard Cleaning Equipment
What do I need for proper cleaning?
What do I need for proper cleaning?
 Isopropyl alcohol
Dust and shutter caps
Cotton swabs
 Pipe cleaner
Soft tissues
 Compressed air
Additional Cleaning Equipment
 Ultrasonic bath
Microscope with a magnification range about 50X up to
Warm water and liquid soap
 Polymer film
Premoistened cleaning wipes
Infrared Sensor Card
 Preserving Connectors
Preserving Connectors
Making Connections
Dust Caps and Shutter Caps
 Which Cleaning Procedure should I use ?
Cleaning Instrument Housings
Cleaning Instrument Housings
Light dirt
 Preferred Procedure
How to clean connectors
Procedure for Stubborn Dirt
How to clean connectors
 An Alternative Procedure
How to clean connector adapters
How to clean connector adapters
 How to clean connector interfaces
How to clean connector interfaces
 How to clean bare fiber adapters
How to clean bare fiber adapters
 How to clean lenses
How to clean lenses
 How to clean instruments with a fixed connector interface
How to clean instruments with a fixed connector interface
System
 How to clean instruments with a physical contact interface
How to clean instruments with an optical glass plate
How to clean instruments with an optical glass plate
 How to clean instruments with a recessed lens interface
How to clean instruments with a recessed
Agilent Technologies 81633A and 81634A Power Sensors do not
Lens interface
 Preferred Procedure
 Alternative Procedure
 Additional Cleaning Information
How to clean metal filters or attenuator gratings
How to clean metal filters or attenuator gratings
 How to clean large area lenses and mirrors
How to clean bare fiber ends
Additional Cleaning Information
 Damage your device
Alternative Procedure a
It, because they can scratch and damage your device
Remains
 Alternative Procedure B
Other Cleaning Hints
Lens cleaning papers
Other Cleaning Hints
 Cleaning the housing and the mainframe
 Error messages
 Error Messages
 Display Messages
Display Messages
Hexadecimal
Bits Mnemonics Value
 Gpib Messages
 Header separator error
Command header error
Numeric data error
Parameter not allowed
 Character data error
Suffix error
Invalid character in number
Exponent too large
 Block data error
String data error
Invalid character data
Character data too long
 Execution error
Execution Errors
Settings lost due to rtl
Parameter error
 Device-Specific Errors
Hardware error
Device-specific error
System error
 Query Errors
Configuration memory lost
Query error
Save/recall memory lost
 Query Deadlocked
Instrument Specific Errors
Query Unterminated after indefinite response
201
 284
 Index
Symbols
 HP-IB
 Lockout
 Resolut
 Thrupowr