Notices
© Keysight Technologies 2018
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
Keysight Technologies as governed by
United States and international copyright
laws.
Manual Part Number
81623-90B12
Edition
Edition 7.1, December 2018
Printed in Germany
Keysight Technologies Deutschland GmbH
Herrenberger Strasse 130,
71034 Böblingen, Germany
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.
U.S. Government Rights
The Software is “commercial computer
software,” as defined by Federal Acquisition
Regulation (“FAR”) 2.101. Pursuant to FAR
12.212 and 27.405-3 and Department of
Defense FAR Supplement
(“DFARS”) 227.7202, the U.S. government
acquires commercial computer software
under the same terms by which the soft-
ware is customarily provided to the public.
Accordingly, Keysight provides the Soft-
ware to U.S. government customers under
its standard commercial license, which is
embodied in its End User License Agree-
ment (EULA), a copy of which can be found
at http://www.keysight.com/find/sweula.
The license set forth in the EULA represents
the exclusive authority by which the U.S.
government may use, modify, distribute, or
disclose the Software. The EULA and the
license set forth therein, does not require
or permit, among other things, that Key-
sight: (1) Furnish technical information
related to commercial computer software
or commercial computer software docu-
mentation that is not customarily provided
to the public; or (2) Relinquish to, or other-
wise provide, the government rights in
excess of these rights customarily provided
to the public to use, modify, reproduce,
release, perform, display, or disclose com-
mercial computer software or commercial
computer software documentation. No
additional government requirements
beyond those set forth in the EULA shall
apply, except to the extent that those
terms, rights, or licenses are explicitly
required from all providers of commercial
computer software pursuant to the FAR and
the DFARS and are set forth specifically in
writing elsewhere in the EULA. Keysight
shall be under no obligation to update,
revise or otherwise modify the Software.
With respect to any technical data as
defined by FAR 2.101, pursuant to FAR
12.211 and 27.404.2 and DFARS 227.7102,
the U.S. government acquires no greater
than Limited Rights as defined in FAR
27.401 or DFAR 227.7103-5 (c), as appli-
cable in any technical data.
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 MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, KEYSIGHT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR
IMPLIED WITH REGARD TO THIS MANUAL
AND ANY INFORMATION CONTAINED
HEREIN, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MER-
CHANTABILITY AND FITNESS FOR A PAR-
TICULAR PURPOSE. KEYSIGHT SHALL NOT
BE LIABLE FOR ERRORS OR FOR INCIDEN-
TAL OR CONSEQUENTIAL DAMAGES IN
CONNECTION WITH THE FURNISHING,
USE, OR PERFORMANCE OF THIS DOCU-
MENT OR ANY INFORMATION CONTAINED
HEREIN. SHOULD KEYSIGHT AND THE
USER HAVE A SEPARATE WRITTEN AGREE-
MENT WITH WARRANTY TERMS COVER-
ING THE MATERIAL IN THIS DOCUMENT
THAT CONFLICT WITH THESE TERMS, THE
WARRANTY TERMS IN THE SEPARATE
AGREEMENT WILL CONTROL.
Safety Notices
A CAUTION notice denotes a hazard.
It calls attention to an operating pro-
cedure, 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.
A WARNING notice denotes a hazard.
It calls attention to an operating pro-
cedure, practice, or the like that, if
not correctly performed 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.
2 Keysight 81618A/9A and Keysight 81620B/3B/4B/6B/8B Optical Heads User’s Guide
