Agilent Technologies 81618A User manual

[phone] | [email protected] | artisantg.com
-~
ARTISAN
®
~I
TECHNOLOGY
GROUP
Your definitive source
for
quality
pre-owned
equipment.
Artisan Technology
Group
Full-service,
independent
repair
center
with
experienced
engineers
and
technicians
on staff.
We
buy
your
excess,
underutilized,
and
idle
equipment
along
with
credit
for
buybacks
and
trade-ins
.
Custom
engineering
so
your
equipment
works
exactly as
you
specify.
•
Critical
and
expedited
services
•
Leasing
/
Rentals/
Demos
• In
stock/
Ready-to-ship
•
!TAR-certified
secure
asset
solutions
Expert
team
ITrust
guarantee
I
100%
satisfaction
All
tr
ademarks,
br
a
nd
names, a
nd
br
a
nd
s a
pp
earing here
in
are
th
e property of
th
e
ir
r
es
pecti
ve
ow
ner
s.
Find the Keysight / Agilent 81625B at our website: Click HERE

S1
Agilent 81618A/9A Optical Head Interface Modules
and Agilent 81622B/3B/4B/6B/7B/8B Optical Heads
User’s Guide

2Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition
Notices
This document contains proprietary information that is
protected by copyright. All rights are reserved.
No part of this document 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 Deutschland GmbH as governed by United
States and international copywright laws.
Copyright 2000 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.
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.
Second Edition:
81623-90B12
Second Edition:
81623-90B12
January 2002
First Edition:
81623-90044
July 2001

Safety Considerations
Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition 3
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 Inc. assumes no
liability for the customer’s failure to comply with these requirements.
Before operation, review the instrument and manual, including the
red safety page, for safety markings and instructions. You must follow
these to ensure safe operation and to maintain the instrument in safe
condition.
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.
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.
Caution - hot surface.
Magnetic fields - may interfere with a pacemaker.
Input Power Limitations
WARNING Applicable to Agilent 81628B only -
Operation above 34 dBm (2.51 W) is at your own risk.
Operation at a continuous optical power, or an average optical power,
greater than 34 dBm causes, in the specified operating temperature
range, the metal parts (connector adapters, screws) to become hotter
than the required limit (55°C) of the safety standard IEC 61010-1.

Safety Considerations
4Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition
Agilent Technologies Deutschland GmbH will not be liable for any
damage caused by operation above 34 dBm.
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 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.).
Line Power Requirements
The Agilent 81618A and Agilent 81619A Optical Head Interface
Modules operate when installed in the Agilent 8163A Lightwave
Multimeter, Agilent 8164A Lightwave Measurement System, and
Agilent 8166A Lightwave Multichannel System.
Operating Environment
The safety information in the Agilent 8163A Lightwave Multimeter,
Agilent 8164A Lightwave Measurement System, and Agilent 8166A
Lightwave Multichannel System User’s Guide summarizes the
operating ranges for the Agilent 81618A and Agilent 81619A Optical
Head Interface Modules. In order for these modules to meet
specifications, the operating environment must be within the limits
specified for the Agilent 8163A Lightwave Multimeter, Agilent 8164A
Lightwave Measurement System, and Agilent 8166A Lightwave
Multichannel System.
Storage and Shipment
This 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.

Ta b l e o f C o n t e n t s
Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition 5
Table of Contents
Safety Considerations 3
Safety Symbols 3
Input Power Limitations 3
Initial Inspection 4
Line Power Requirements 4
Operating Environment 4
Storage and Shipment 4
Getting Started with Optical Heads 9
What is an Optical Head? 11
Analog Output 12
Optical input 12
Heat Sink for 81628B optical Head 12
Attaching the heat sink to the 81628B Optical Head 13
Applicable adapters 13
Mounting Instructions 13
Accessories 15
Modules and Options 17
Optical Heads 81622B/23B/24B/26B/28B (5 & 3 mm Sensors)17
Optical Head 81627B - 3 mm Sensor 18
Connector Adapters - Reference List 19
Specifications 21
Definition of Terms 23
Averaging Time 23
Linearity 23
Linewidth 24
Noise 24
Power range 24
Reference conditions 24
Relative uncertainty (spectral ripple) due to interference 24
Relative uncertainty due to speckle noise 25
Relative uncertainty due to polarization 25

Table of Con tents
6Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition
Return loss 26
Spectral width of optical source 26
Total uncertainty 26
Uncertainty at reference conditions 26
Wavelength range 26
Optical Head Specifications 27
Supplementary Performance Characteristics 33
Analog Output 33
Performance Tests 35
Equipment Required 37
Test Record 38
Test Failure 39
Instrument Specification 39
Functional Tests 40
Performance Tests 41
For 81628B only 41
Accuracy Test 43
Linearity Test 45
Calculation 51
Noise Test 54
Return Loss Test 55
Relative Uncertainty due to Polarization (Optional Test) 57
Relative Uncertainty due to Interference (Optional Test) 59
Calculation Sheets 85
Cleaning Information 87
Cleaning Instructions for this Device 89
81000xA Optical Head Adapters 89
8162xx Optical Power Heads 89
Safety Precautions 90
Why is it important to clean optical devices? 90
What do I need for proper cleaning? 91
Standard Cleaning Equipment 91
Dust and shutter caps 91
Isopropyl alcohol 92
Cotton swabs 92

Ta b l e o f C o n t e n t s
Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition 7
Soft tissues 93
Pipe cleaner 93
Compressed air 93
Additional Cleaning Equipment 94
Microscope with a magnification range about 50X up to 300X 94
Ultrasonic bath 94
Warm water and liquid soap 95
Premoistened cleaning wipes 95
Polymer film 95
Infrared Sensor Card 95
Preserving Connectors 96
Cleaning Instrument Housings 96
Which Cleaning Procedure should I use ? 97
How to clean connectors 97
How to clean connector adapters 98
How to clean connector interfaces 99
How to clean bare fiber adapters 99
How to clean lenses 100
How to clean instruments with a fixed connector interface 101
How to clean instruments with an optical glass plate 101
How to clean instruments with a physical contact interface
101
How to clean instruments with a recessed lens interface 102
How to clean optical devices which are sensitive to
mechanical stress and pressure 103
How to clean metal filters or attenuator gratings 104
Additional Cleaning Information 104
How to clean bare fiber ends 105
How to clean large area lenses and mirrors 105
Other Cleaning Hints 106

Table of Con tents
8Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition

Getting Started with Optical Heads
Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition 9
Getting Started with Optical Heads