Agilent Technologies 81663A Manuale utente

Agilent Technologies

Agilent 81663A

DFB Laser Source

Module

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 transla-

tion into a foreign language) without prior

agreement and written consent from Agi-

lent Technologies, Inc. as governed by

United States and international copyright

laws.

Warranty

The material contained in this docu-

ment is provided “as is,” and is sub-

ject to being changed without notice

in future editions. Further, to the max-

imum extent permitted by applicable

law, Agilent Technologies disclaims

all warranties of merchantability and

fitness for a particular purpose. Agi-

lent Technologies shall not be liable

for errors or for incidental or conse-

quential damages in connection with

the furnishing, use, or performance of

this document or of any of the prod-

ucts to which it pertains. Should Agi-

lent Technologies have a written

contract with the user and should any

of the contract terms conflict with

these terms the contract terms shall

control.

Technology Licenses

The hardware and/or software described in

this document are furnished under a

license and may be used or copied only in

accordance with the terms of such license.

Restricted Rights Legend

If Software is for use in the performance of

a U.S. Government prime contract or sub-

contract, Software is delivered and

licensed as “Commercial computer soft-

ware” as defined in DFAR 252.227-7014

(June 1995), or as a “commercial item” as

defined in FAR 2.101(a) or as “Restricted

computer software” as defined in FAR

52.227-19 (June 1987) or any equivalent

agency regulation or contract clause. Use,

duplication or disclosure of Software is

subject to Agilent Technologies’ standard

commercial license terms, and non-DOD

Departments and Agencies of the U.S. Gov-

ernment will receive no greater than

Restricted Rights as defined in FAR

52.227-19(c)(1-2) (June 1987). U.S. Govern-

ment users will receive no greater than

Limited Rights as defined in FAR 52.227-14

(June 1987) or DFAR 252.227-7015 (b)(2)

(November 1995), as applicable in any

technical data.

Safety Notices

CAUTION

A CAUTION notice denotes a haz-

ard. It calls attention to an operat-

ing procedure, practice, or the like

that, if not correctly performed 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 condi-

tions are fully understood and met.

Manual Part Number

81661-90A15

Edition

Eighth Edition, May 2010

Seventh Edition, December 2007

Sixth Edition, June 2005

Seventh Edition, February 2002

Fourth Edition, August 2001

Third Edition, January 2001

Second Edition, October 2000

First Edition, June 2000

Agilent Technologies Deutschland GmbH

Herrenberger Str. 130

71034 Böblingen, Germany.

Agilent DFB Laser Source Module User’s Guide 3

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, visit 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: (tel) 800 829 4444

(fax) 800 829 4433

Canada: (tel) 877 894 4414

(fax) 800 746 4866

China (tel) 800 810 0189

(fax) 800 820 2816

Europe: (tel) 31 20 547 2111

Japan: (tel) (81) 426 56 7832

(fax) (81) 426 56 7840

Korea (tel) (080) 769 0800

(fax) (080) 769 0900

Latin America: (tel) (305) 269 7500

Ta i w an : (tel) 0800 047 866

(fax) 0800 286 331

Other Asia Pacific

countries:

(tel) (65) 6375 8100

(fax) (65) 6755 0042

Email: tm_ap@agilent.com

4 Agilent DFB Laser Source Module User’s Guide

Agilent DFB Laser Source Module User’s Guide 5

Ta b l e o f C o n t e n t s

Agilent Technologies Sales and Service Offices 3

1 Getting Started with DFB Laser Sources

Safety Considerations 8

Safety Symbols 8

Initial Inspection 8

Line Power Requirements 9

Operating Environment 9

Storage and Shipment 9

Environmental Information 9

Initial Safety Information for the DFB Laser Source Module 10

Laser Safety Labels 10

What is a DFB Laser Source Module? 11

A Description of the Front Panel 11

Optical Output 11

Operation Note 13

Maintaining Wavelength Accuracy Below Maximum Power 13

2Accessories

Recommended Connector Interfaces 16

Wavelength Options 16

3 Performance Tests

Equipment Required 18

Te st R e co r d 1 8

Tes t F ai l u re 1 8

Instrument Specification 18

Performance Test Instructions 19

All Wavelength Tests 19

Wavelength Repeatability Test 19

6 Agilent DFB Laser Source Module User’s Guide

Wavelength Stability Test 20

Te st R e co r d s 2 1

4 Cleaning Information

Safety Precautions 26

Why is it important to clean optical devices? 27

What do I need for proper cleaning? 28

Standard Cleaning Equipment 28

Additional Cleaning Equipment 31

Preserving Connectors 33

Cleaning Instrument Housings 34

Which Cleaning Procedure should I use ? 35

How to clean connectors 36

How to clean connector adapters 38

How to clean connector interfaces 39

How to clean bare fiber adapters 40

How to clean lenses 41

How to clean instruments with a fixed connector interface 42

How to clean instruments with an optical glass plate 43

How to clean instruments with a physical contact interface 44

How to clean instruments with a recessed lens interface 45

How to clean optical devices which are sensitive to mechanical stress and

pressure 46

How to clean metal filters or attenuator gratings 47

Additional Cleaning Information 48

How to clean bare fiber ends 48

How to clean large area lenses and mirrors 48

Other Cleaning Hints 51

5 Specifications

Definition of Terms 54

DFB Source Module Specifications 57

Supplementary Performance Characteristics 57

Agilent Technologies

Agilent 81663A DFB Laser Source Module User’s Guide

Getting Started with DFB Laser Sources

This chapter introduces the features of the Agilent 81663A DFB

Laser Source Module.

8 Agilent DFB Laser Source Module User’s Guide

Safety Considerations

The following general safety precautions must be observed

during all phases of operation, service, and repair of this

instrument. Failure to comply with these precautions or with

specific warnings elsewhere in this manual violates safety

standards of design, manufacture, and intended use of the

instrument. Agilent Technologies assumes no liability for the

customer’s failure to comply with these requirements.

Before operation, review the instrument and manual, including

the safety page, for safety markings and instructions. You must

follow these to ensure safe operation and to maintain the

instrument in safe condition.

Safety Symbols

The apparatus will be marked with this symbol when it is

necessary for the user to refer to the instruction manual in

order to protect the apparatus against damage.

Hazardous laser radiation.

Initial Inspection

Inspect the shipping container for damage. If there is damage to

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.

The Performance Tests give procedures for checking the

operation of the instrument. If the contents are incomplete,

mechanical damage or defect is apparent, or if an instrument

does not pass the operator’s checks, notify the nearest Agilent

Technologies Sales/Service Office.

WARNING

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

procedure, practice or the like, 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

To avoid hazardous electrical shock, do not perform electrical

tests when there are signs of shipping damage to any portion of

the outer enclosure (covers, panels, etc.).

Agilent DFB Laser Source Module User’s Guide 9

Line Power Requirements

The Agilent 81663A DFB Laser Source Module operates when

installed in the Agilent 8163A/B Lightwave Multimeter,

Agilent 8164A/B Lightwave Measurement System, or

Agilent 8166A/B Lightwave Multichannel System.

Operating Environment

The safety information in the Agilent 8163A/B Lightwave

Multimeter, Agilent 8164A/B Lightwave Measurement System,

and Agilent 8166A/B Lightwave Multichannel System User’s

Guide summarizes the operating ranges for the Agilent 81663A

DFB Laser Source Module. In order for this module to meet

specifications, the operating environment must be within the

limits specified for the mainframe.

Storage and Shipment

The module can be stored or shipped at temperatures between

−40°C and +70°C. Protect the module from temperature

extremes that may cause condensation within it.

Environmental Information

This product complies with the WEEE Directive (2002/96/EC)

marking requirements. The affixed label indicates that you must

not discard this electrical/ electronic product in domestic

household waste.

Product Category: With reference to the equipment types in the

WEEE Directive Annex I, this product is classed as a

"Monitoring and Control instrumentation" product.

Do not dispose in domestic household waste.

To return unwanted products, contact your local Agilent office,

or see www.agilent.com/environment/product/ for more

information

WARNING

You MUST return instruments with malfunctioning laser modules

to an Agilent Technologies Service Center for repair and

calibration.

10 Agilent DFB Laser Source Module User’s Guide

Initial Safety Information for the DFB Laser Source Module

The laser sources specified by this user guide are classified

according to IEC 60825-1 (2001)

The laser sources comply with 21 CFR 1040.10 except for

deviations pursuant to Laser Notice No. 50, dated 2001-July-26.

Laser Safety Labels

Laser class 1M label

Figure 1 Class 1M Safety Label - Agilent 81663A

A sheet of laser safety labels is included with the laser module

as required. In order to meet the requirements of IEC 60825-1

we recommend that you stick the laser safety labels, in your

language, onto a suitable location on the outside of the

instrument where they are clearly visible to anyone using the

instrument.

Tab l e 1 DFB Laser Source Module Safety Information

Agilent 81663A

Laser type CW DFB Laser

with built-in isolator

Wavelength range 1300 to 1650 nm

see display

Max. CW output power* <28 mW

Beam waist diameter 9 µm

Numerical aperture 0.1

Laser Class according to IEC 60825-1 (2001)- International 1M

Max. permissible CW output power 163 mW

* Max. CW output power is defined as the highest possible optical power that the laser

source can produce at its output connector

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