Agilent Technologies 86038B Manual de usuario

Agilent 86038B

Photonic Dispersion and Loss Analyzer User’s

Guide

Notices

No part of this manual may be reproduced in

any form or by any means (including

electronic storage and retrieval or translation

into a foreign language) without prior

agreement and written consent from Agilent

Technologies, Inc. as governed by United

States and international copyright lays.

Agilent Technologies, Deutschland GmbH

Herrenberger Straße 130

71034 Böblingen, Germany.

Manual Part Number

86038-90B03

Edition

Second edition, July 2006

First edition, September 2005

Subject Matter

The material in this document is subject to

change without notice.

Agilent Technologies makes no

warranty of any kind with regard

to this printed material,

including, but not limited to, the

implied warranties of

merchantability and fitness for a

particular purpose.

Agilent Technologies shall not be liable for

errors contained herein or for incidental or

consequential damages in connection with

the furnishing, performance, or use of this

material.

Printing History

New editions are complete revisions of the

guide reflecting alterations in the functionality

of the instrument. Updates are occasionally

made to the guide between editions. The date

on the title page changes when an updated

guide is published. To find out the current

revision of the guide, or to purchase an

updated guide, contact your Agilent

Technologies representative.

Warranty

This Agilent Technolgies 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.

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: 1 800 829 4444

1 800 829 4433 (FAX)

Canada: 1 877 894 4414

1 905 282 6495 (FAX)

Europe: +31 20 547 2111

+31 20 547 2190 (FAX)

Japan: 120 421 345

120 421 678 (FAX)

Mexico (52 55) 5081 9469

(52 55) 5081 9467 (FAX)

Australia: 800 629 485

800 142 134 (FAX)

Asia-Pacific: +852 800 930 871

+852 2 506 9233(FAX)

Latin America +55 11 4197 3600

+55 11 4197 3800 (FAX)

Agilent 86038B Photonic Dispersion and Loss Analyzer, Second Edition 5

Contents

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Key benefits are: . . . . . . . . . . . . . . . . . . . . . . . . . 22

General Safety Considerations. . . . . . . . . . . . . . . . . . . . . . . 24

Safety Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Instrument Markings. . . . . . . . . . . . . . . . . . . . . . 24

Laser Safety Considerations . . . . . . . . . . . . . . . 26

Environmental Information. . . . . . . . . . . . . . . . . 27

Setting Up the Photonic Dispersion and Loss Analyzer. . 28

Agilent 86038B Front and Rear Panels. . . . . . . 32

Performance Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Things to Consider. . . . . . . . . . . . . . . . . . . . . . . . 35

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Navigating the Front Panel Functions. . . . . . . . . . . . . . . . . 44

Defining Traces . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Quick Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Prepare the Normalization . . . . . . . . . . . . . . . . . 47

Quick Setup Process . . . . . . . . . . . . . . . . . . . . . . 47

Measurement Process . . . . . . . . . . . . . . . . . . . . 48

Measurement Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Understanding the Attributes Being Measured . . . . . . . . 51

Gain/Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

6Agilent 86038B Photonic Dispersion and Loss Analyzer, Second Edition

Group Delay/Chromatic Dispersion/Optical

Phase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Polarization Mode Dispersion/Differential

Group Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Polarization Dependent Loss (PDL) . . . . . . . . . 56

Fiber length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Description of the 86038B . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Measurement Method (MPS) . . . . . . . . . . . . . . . . . . . . . . . 59

Choosing Setup Parameters. . . . . . . . . . . . . . . . . . . . . . . . . 61

Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Relationship of setup parameters to

measurement noise. . . . . . . . . . . . . . . . . . . . . . . 62

Relationship of setup parameters to phase

wrapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Maximum RF Modulation Frequency (MHZ) . . 64

Relationship of setup parameters to aliasing . 65

Relationship of setup parameters to resolution .

Relationship of setup parameters to imaging . 66

Relationship of setup parameters to DGD and

PDL accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Relationship of setup parameters to ripple

amplitude accuracy . . . . . . . . . . . . . . . . . . . . . . . 68

Control of resolution and noise . . . . . . . . . . . . . 70

Selecting setup conditions for a new type of

narrowband device . . . . . . . . . . . . . . . . . . . . . . . 71

Suggested reading: . . . . . . . . . . . . . . . . . . . . . . . 72

Multiple Port Configurations . . . . . . . . . . . . . . . . . . . . . . . . 73

Normalization and Measurement . . . . . . . . . . . . . . . . . . . . 74

Optical Modulator Bias Adjustment . . . . . . . . . 74

Input Polarizer Adjustment . . . . . . . . . . . . . . . . 75

Phase Dynamic Accuracy. . . . . . . . . . . . . . . . . . 75

Agilent 86038B Photonic Dispersion and Loss Analyzer, Second Edition 7

Length Normalization . . . . . . . . . . . . . . . . . . . . . 76

Wavelength Accuracy Correction . . . . . . . . . . . 76

Swept and Stepped Measurement Modes. . . . . . . . . . . . . 77

Making Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Quick Setup Measurement Process . . . . . . . . . . . . . . . . . . 81

Set up the Normalization . . . . . . . . . . . . . . . . . . 81

Quick Setup Process . . . . . . . . . . . . . . . . . . . . . . 81

Measurement Process . . . . . . . . . . . . . . . . . . . . 81

Flexible Measurement Process . . . . . . . . . . . . . . . . . . . . . . 82

Prepare for Normalization Measurement . . . . 82

Setup and Normalization Process. . . . . . . . . . . 82

Measurement Process . . . . . . . . . . . . . . . . . . . . 82

Setup Parameters and What They Do. . . . . . . . . . . . . . . . . 83

Wavelength range . . . . . . . . . . . . . . . . . . . . . . . . 83

Wavelength increment . . . . . . . . . . . . . . . . . . . . 83

Modulation frequency. . . . . . . . . . . . . . . . . . . . . 83

Samples/Point . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

IF Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

TLS Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Choosing Setup Parameters for Your Device . . . . . . . . . . . 85

Transmission Fiber (All Types). . . . . . . . . . . . . . 85

Fiber Dispersion Compensating Module (DCM) .

Fiber Bragg Grating Dispersion Compensators

(or other channel compensators) . . . . . . . . . . . 87

Erbium Doped Fiber (Unpumped) . . . . . . . . . . . 88

Erbium Doped Fiber (Pumped). . . . . . . . . . . . . . 89

Narrowband Filter or DWDM Wavelength

8Agilent 86038B Photonic Dispersion and Loss Analyzer, Second Edition

Routing Device. . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Broadband Component

(Isolator, Circulator, Coupler, Attenuator and so

on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Function Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

File Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Recall. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Export . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

View Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Minimize Application . . . . . . . . . . . . . . . . . . . . . 97

System Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Laser Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Laser On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Local . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Preset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Preset Display Properties. . . . . . . . . . . . . . . . . . 99

Select TLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Wavelength Meter. . . . . . . . . . . . . . . . . . . . . . . . 99

Status Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Real-Time Port Monitor. . . . . . . . . . . . . . . . . . . 101

Optimize Optical Modulator Bias . . . . . . . . . .102

Optimize Input Polarizer . . . . . . . . . . . . . . . . . . 103

Toggle mainframe local-lockout status . . . . . 103

Zero external power meters. . . . . . . . . . . . . . . 103

Setup Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Agilent 86038B Photonic Dispersion and Loss Analyzer, Second Edition 9

Quick Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

CD/PMD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Measurement Range. . . . . . . . . . . . . . . . . . . . .106

Normalization Range. . . . . . . . . . . . . . . . . . . . . 107

Sensitivity/Resolution . . . . . . . . . . . . . . . . . . .108

Laser Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Measure Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

Begin Measurement . . . . . . . . . . . . . . . . . . . . .115

Begin Normalization . . . . . . . . . . . . . . . . . . . . . 115

Clear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Cancel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Normalize . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

Begin Length . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Cancel Measurement . . . . . . . . . . . . . . . . . . . .118

Display Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

X Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Y Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Auto Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Marker Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Marker Search . . . . . . . . . . . . . . . . . . . . . . . . . .122

Marker Functions. . . . . . . . . . . . . . . . . . . . . . . . 123

Define Trace . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

Smooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Curve Fit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

Navigating the Front Panel. . . . . . . . . . . . . . . . . . . . . . . . .129

Change View. . . . . . . . . . . . . . . . . . . . . . . . . . . .129

Next Trace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Toolbar Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

10 Agilent 86038B Photonic Dispersion and Loss Analyzer, Second Edition

Zoom Functions . . . . . . . . . . . . . . . . . . . . . . . . .130

Measure Control Functions . . . . . . . . . . . . . . .132

Remote Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

How to Use This Chapter . . . . . . . . . . . . . . . . . 136

Recommended Control Sequence . . . . . . . . . . . . . . . . . . . 138

How to Configure the PDLA for Networking . 138

How to Connect the PDLA to Your Network . 138

How to Change Network Settings . . . . . . . . . 139

Install the Remote Client. . . . . . . . . . . . . . . . . . . . . . . . . . .141

Program Structure: events vs. sequential . . . . . . . . . . . .147

Front Panel Functions with No Remote Equivalent . . . .149

Enumerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Event Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

pdlaClient Front Panel Maps . . . . . . . . . . . . . . . . . . . . . . .158

Example 1: Simple Application for Controlling the PDLA . .

167

Starting a VB 6.0 PDLA Application . . . . . . . . . . . . . . . . . 168

Install Software . . . . . . . . . . . . . . . . . . . . . . . . . 168

Application Shell . . . . . . . . . . . . . . . . . . . . . . . . 168

Event Handling. . . . . . . . . . . . . . . . . . . . . . . . . . 170

Control Center Wavelength . . . . . . . . . . . . . . . 174

Complete source code . . . . . . . . . . . . . . . . . . . 175

Starting a VB.NET PDLA Application . . . . . . . . . . . . . . . .178

Install Software . . . . . . . . . . . . . . . . . . . . . . . . . 178

Application Shell . . . . . . . . . . . . . . . . . . . . . . . . 178

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