Agilent Technologies 8169A Manual de usuario

Agilent Technologies

Agilent 8169A

Polarization Controller

User's Guide

Advanced Test Equipment Rentals

www.atecorp.com 800-404-ATEC (2832)

Notices

This document contains proprietary

information that is protected by

No part of this document may repro-

duced in (including electronic storage

and retrieval or translation into a for-

eign language) without prior agree-

ment and written consent from Agilent

Technologies GmbH as governed by

United tates and international copy-

wright laws.

Agilent Technologies Deutschland

GmbH

Herrenberger tr. 130

71034 Böblingen

Germany

Manual Part Number

08169-90A01

Edition

Second edition, November 2004

First edition, September 1994

Warranty

This Agilent Technologies instrument

product is warranted against defects in

material and workmanship for a period

of one year from date of shipment.

During the warranty period, Agilent

will, at its option, either repair or

replace products that prove to be

defective.

For warranty service or repair, this

product must be returned to a service

facility designated by Agilent. Buyer

shall prepay shipping charges to

Agilent and Agilent shall pay shipping

charges to return the product to Buyer.

However, Buyer shall pay all shipping

charges, duties, and taxes for products

returned to Agilent from another

country.

Agilent warrants that its software and

firmware designated by Agilent for use

with an instrument will execute its

programming instructions when

properly installed on that instrument.

Agilent does not warrant that the

operation of the instrument, software,

or firmware will be uninterrupted or

error free.

Limitation of Warranty

The foregoing warranty shall not apply

to defects resulting from improper or

inadequate maintenance by Buyer,

Buyer-supplied software or interfacing,

unauthorized modification or misuse,

operation outside of the environmental

specifications for the product, or

improper site preparation or

maintenance.

No other warranty is expressed or

implied. Agilent Technologies

specifically disclaims the implied

warranties of Merchantability and

Fitness for a Particular Purpose.

Exclusive Remedies

The remedies provided herein are

Buyer's sole and exclusive remedies.

Agilent Technologies shall not be

liable for any direct, indirect, special,

incidental, or consequential damages

whether based on contract, tort, or any

other legal theory.

Assistance

Product maintenance agreements and

other customer assistance agreements

are available for Agilent Technologies

products. For any assistance contact

your nearest Agilent Technologies

Sales and Service Office.

Certification

Agilent Technologies Inc. certifies that

this product met its published

specifications at the time of shipment

from the factory.

Agilent Technologies further certifies

that its calibration measurements are

traceable to the United States National

Institute of Standards and Technology,

NIST (formerly the United States

National Bureau of Standards, NBS) to

the extent allowed by the Institutes’s

calibration facility, and to the

calibration facilities of other

International Standards Organization

members.

ISO 9001 Certification

Produced to ISO 9001 international

quality system standard as part of our

objective of continually increasing

customer satisfaction through

improved process control.

Safety Notices

CAUTION

A CAUTION notice denotes a

hazard. It calls attention to an

operating procedure, practice, or

the like that, if not correctly per

formed or adhered to, could result

in damage to the product or loss of

important data. Do not proceed

beyond a CAUTION notice until the

indicated conditions are fully

understood and met.

WARNING

A WARNING notice denotes a

hazard. It calls attention to an

operating procedure, practice, or

the like that, if not correctly per

formed or adhered to, could result

in personal injury or death. Do not

proceed beyond a WARNING

notice until the indicated

conditions are fully understood

and met.

Warnings and Notices

WARNING

To avoid the possibility of injury or death, you must observe the follow

ing precautions before switching on the instrument.

Insert the power cable plug only into a socket outlet provided with a

protective earth contact. Do not negate this protective action by the

using an extension cord without a protective conductor.

WARNING

Never look directly into the end of a fiber or a connector, unless you are

absolutely certain that there is no signal in the fiber.

Agilent Technologies Sales and Service Offices

For more information about Agilent Technologies test and measurement

products, applications, services, and for a current sales office listing, viesit

our web site:

http://www.agilent.com/comms/lightwave

You can also contact one of the following centers and ask for a test and

measurement sales representative.

United States: 1 800 452 4844

1 888 900 8921 (FAX)

Canada: 1 877 894 4414

(905) 282 6495 (FAX)

Europe: (31 20) 547 2111

(43 20) 547 2190 (FAX)

Japan: 0120 421 345

0120 421 678 (FAX)

Mexico (52 55) 5081 9469

(52 55) 5081 9467 (FAX)

Australia: 1 800 629 485

1 800 142 134 (FAX)

Asia-Pacific: (852) 3197 7889

(852) 2506 9233 (FAX)

Brazil (55 11) 4197 3600

(55 11) 4197 3800 (FAX)

Agilent 8169A Polarization Controller, Second Edition 5

Contents

Getting Started 11

General Safety Considerations 12

The Basic Operating Principle 14

Using the Polarization Controller for Polarization

Analysis 15

Editing 16

Editing Using the Entry Keys 17

Editing Using the Modify Keys and Knob 17

Resetting Parameters 18

Setting a state of Polarization 19

Setting up the Hardware 20

Setting the Position of the Polarizing Filter 21

Setting the State of Polarization 22

Positioning the l/4 and l/2 Retarder Plates 23

Using the Circle Mode 23

Example: Setting the Optimum Transmission SoP 24

Set the Polarizing Filter. 25

Setting the Worst Case Transmission SoP 26

Setting the Optimum Transmission SoP 28

Scanning the Poincare Sphere 29

Setting up the Hardware 30

Setting Up and Executing a Scan 31

Example: Measuring the Response to a "Depolarized"

Signal 32

Set the Polarizing Filter 33

Setting Up the Instruments 34

Running the Scan 34

6Agilent 8169A Polarization Controller, Second Edition

Example: Measuring a Polarization Dependent Loss 35

Set the Polarizing Filter 36

Setting Up the Instruments 37

Running the Scan 37

Analyzing the Results 37

Other Front Panel Functions 39

Setting the GPIB Address 40

Storing or Recalling Instrument Settings 40

Storing a Setting 40

Recalling a Setting 40

Resetting the Instrument 40

Programming the Polarization Controller 41

GPIB Interface 42

Setting the GPIB Address 43

Returning the Instrument to Local Control 43

How the Polarization Controller Receives and Transmits

Messages 44

How the Input Queue Works 44

Clearing the Input Queue 44

The Output Queue 45

The Error Queue 45

Some Notes about Programming and Syntax Diagram

Conventions 45

Short Form and Long Form 46

Command and Query Syntax 47

Remote Commands 49

Command Summary 52

The Common Commands 54

Common Status Information 55

SRQ, The Service Request 56

Switching On and Off the Instrument Display 66

Agilent 8169A Polarization Controller, Second Edition 7

Positioning the Polarizing Filter 67

Setting the State of Polarization 68

Scanning the Poincare Sphere 72

STATus Commands 74

Setting Up the STATus Registers 75

Checking the Status 80

SYSTem Commands 83

Programming Examples 85

Example 1 - Checking Communication 86

Example 2 - Status Registers and Queues 87

Example 3 - Finding the Optimum Transmission SoP 90

Example 4 - Finding the Polarization Dependence 94

Installation 97

Safety Considerations 98

Initial Inspection 98

AC Line Power Supply Requirements 99

Line Power Cable 99

Replacing the Fuse 101

Replacing the Battery 102

Operating and Storage Environment 102

Temperature 102

Humidity 103

Altitude 103

Installation Category and Pollution Degree 103

Instrument Positioning and Cooling 103

Switching on the Polarization Controller 104

Optical Output 104

Trigger Input and Output 104

GPIB Interface 105

Connector 105

GPIB Logic Levels 106

Claims and Repackaging 106

Return Shipments to Agilent 107

8Agilent 8169A Polarization Controller, Second Edition

Accessories 109

Instrument and Options 110

GPIB Cables and Adapters 110

Connector Interfaces and Other Accessories 110

Option 021, Straight Contact Connector 111

Option 022, Angled Contact Connector 112

Specifications 113

Introduction 114

Other Specifications 115

Declaration of Conformity 116

Performance Test 117

Introduction 118

Insertion Loss Variation with Rotation of l/4 and l/2 Plates

119

Insertion Loss versus Wavelength 123

Extinction Ratio of Polarizer 127

Cleaning Information 133

Safety Precautions 135

Why is it important to clean optical devices? 136

What materials do I need for proper cleaning? 137

Preserving Connectors 142

Cleaning Instrument Housings 143

General Cleaning Procedure 144

Additional Cleaning Information 156

Other Cleaning Hints 159

Error Messages 161

Display Messages 162

GPIB Messages 163

Agilent 8169A Polarization Controller, Second Edition 11

Getting Started

This chapter describes the basic operating principle, and the basic

operating of the polarization controller.

General Safety Considerations. . . . . . . . . . . . . . . . . . . . . . .12

The Basic Operating Principle . . . . . . . . . . . . . . . . . . . . . . . 14

Using the Polarization Controller for Polarization Analysis.

Editing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Editing Using the Entry Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Editing Using the Modify Keys and Knob . . . . . . . . . . . . . . . . . .17

Resetting Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Getting Started General Safety Considerations

12 Agilent 8169A Polarization Controller, Second Edition

General Safety Considerations

This product has been designed and tested in accordance with the

standards listed on the Manufacturer’s Declaration of Conformity, and has

been supplied in a safe condition. The documentation contains information

and warnings that must be followed by the user to ensure safe operation

and to maintain the product in a safe condition.

Safety Symbols

The caution sign denotes a hazard. It calls attention to a procedure

which, if not correctly performed or adhered to, could result in

damage to or destruction of the product. Do not proceed beyond a

caution sign until the indicated conditions are fully understood and

met.

CAUTION

The warning sign denotes a hazard. It calls attention to a

procedure which, if not correctly performed or adhered to, could

result in injury or loss of life. Do not proceed beyond a warning

sign until the indicated conditions are fully understood and met.

WARNING

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