User`s guide
2 Agilent 81689A, 81689B and 81649A Tunable Laser Modules User’s Guide, Third Edition
Notices
This document contains proprietary information that is 
protected by copyright. All rights are reserved.
No part of this document may reproduced in (including 
electronic storage and retrieval or translation into a 
foreign language) without prior agreement and written 
consent from Agilent Technologies Deutschland GmbH 
as governed by United States and international 
copywright laws.
Copyright 2001 by:
Agilent Technologies Deutschland GmbH
Herrenberger Str. 130
71034 Böblingen
Germany
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.
Control Serial Number: First Edition applies directly to 
all instruments.
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. 
Third Edition 
81689-90A13
First Edition:
81689-90A11: September 2001
Second Edition:
81689-90A12: October 2001
Third Edition:
81689-90A13: February 2002










