EXFO IQS-5320 User manual

Multi-Wavelength Meter
IQS-5320
User Guide
P/N: 1035496
June 2002
If the equipment described herein
bears the  symbol, the said
equipment complies with the
applicable European Union
Directive and Standards mentioned
in the Declaration of Conformity.

All rights reserved. No part of this publication may be reproduced, stored in
a retrieval system, or transmitted in any form, be it electronically,
mechanically, or by any other means such as photocopying, recording, or
otherwise, without the prior written permission of EXFO Electro-Optical
Engineering Inc. (EXFO).
Information provided by EXFO is believed to be accurate and reliable.
However, no responsibility is assumed by EXFO for its use nor for any
infringements of patents or other rights of third parties that may result from
its use. No license is granted by implication or otherwise under any patent
rights of EXFO.
EXFO’s Commerce And Government Entities (CAGE) code under the North
Atlantic Treaty Organization (NATO) is 0L8C3.
The information contained in this publication is subject to change without
notice.
© 2002 EXFO Electro-Optical Engineering Inc.
Words that EXFO considers trademarks have been identified as such.
However, neither the presence nor absence of such identification affects
the legal status of any trademark.
Units of measurement in this document conform to SI standards and
practices.

Contents
Multi-Wavelength Meter iii
Contents
Certification Information ....................................................................................................... vi
1 Introducing the IQS-5320 Multi-Wavelength Meter ................................... 1
Main Features .........................................................................................................................1
Typical Applications ................................................................................................................2
MWM Measurement Principle .................................................................................................3
2 Safety Information ....................................................................................... 5
Safety Conventions .................................................................................................................5
Laser Safety Information .........................................................................................................5
3 Getting Started with Your Multi-Wavelength Meter .................................. 7
Inserting and Removing Test Modules ....................................................................................7
Launching the IQS-5320 Multi-Wavelength Meter Application .............................................11
Adjusting Window Height ....................................................................................................14
Exiting the Application .........................................................................................................14
4 Setting Up Your Multi-Wavelength Meter ................................................. 15
Setting Power Units ..............................................................................................................16
Setting Wavelength Units .....................................................................................................17
Displaying Interchannel Data ................................................................................................18
Setting the Detection Threshold ...........................................................................................18
Selecting a Referenced Power ...............................................................................................20
Selecting a Transmission Medium .........................................................................................21
Setting a Power Offset ..........................................................................................................22
Creating Channels and Channel Lists ....................................................................................24
Setting Display Parameters ...................................................................................................38
Setting Print Parameters .......................................................................................................42
5 Preparing Your Multi-Wavelength Meter for a Test .................................. 45
Nulling Electrical Offsets .......................................................................................................45
Connecting Optical Fibers .....................................................................................................46
Installing the EXFO Universal Interface (EUI) .........................................................................47
Selecting a Test Control Mode ..............................................................................................48

Contents
iv IQS-5320
6 Taking Measurements in WDM Mode ........................................................49
Performing WDM Mode Measurements ................................................................................50
Selecting a Graph Type in WDM Mode .................................................................................52
Viewing WDM Mode Measurement Results ..........................................................................54
Viewing Trace Information ....................................................................................................56
Viewing Detailed Trace Measurements .................................................................................57
Adjusting Trace Display Resolution .......................................................................................59
7 Taking Measurements in Drift Mode .........................................................61
Performing Drift Mode Measurements .................................................................................61
Selecting a Graph Type in Drift Mode ...................................................................................63
Viewing Drift Mode Measurement Results ............................................................................65
Viewing Trace Information ....................................................................................................67
Viewing Detailed Trace Measurements .................................................................................68
Adjusting Trace Display Resolution .......................................................................................70
8 Managing Traces .........................................................................................71
Saving a Trace .......................................................................................................................72
Recalling a Trace ...................................................................................................................73
Exporting a Trace to ASCII Format ........................................................................................74
Deleting a Trace ....................................................................................................................75
Clearing a Trace from the Display .........................................................................................76
Renaming a Trace .................................................................................................................76
Defining the Default Storage Location ..................................................................................78
Defining a File Autonaming Format ......................................................................................80
Viewing Results from Existing Trace Files ..............................................................................81
9 Generating Reports .....................................................................................83
Entering Report Information .................................................................................................84
Using Report Templates ........................................................................................................87
Printing a Report ..................................................................................................................89
10 Maintenance ................................................................................................91
Cleaning the Front Panel .......................................................................................................91
Cleaning Fixed Connectors ....................................................................................................92
Cleaning Connectors Equipped with EUI/EUA Adapters ........................................................94
Cleaning Detector Ports ........................................................................................................98
Recalibrating the Unit ...........................................................................................................99

Contents
Multi-Wavelength Meter v
11 Troubleshooting ....................................................................................... 101
Viewing Online Documentation ..........................................................................................101
Finding Information on the EXFO Web Site ........................................................................101
Contacting the Technical Support Group ............................................................................102
Transportation ....................................................................................................................103
12 Warranty ................................................................................................... 105
General Information ...........................................................................................................105
Liability ...............................................................................................................................106
Exclusions ...........................................................................................................................106
Certification ........................................................................................................................106
Service and Repairs .............................................................................................................107
EXFO Service Centers Worldwide ........................................................................................108
A Technical Specifications ........................................................................... 109
B SCPI Command Reference ....................................................................... 111
Quick Reference Command Tree .........................................................................................112
Command Description ........................................................................................................114
C Interferometric Wavelength Measurement Theory ................................ 159
Index .............................................................................................................. 161

Certification Information
vi IQS-5320
Certification Information
F.C.C. Information
Electronic test equipment is exempt from Part 15 compliance (FCC) in
the United States, but EXFO makes reasonable efforts to ensure this
compliance.
 Information
Electronic test equipment is subject to the EMC Directive in the European
Union. The EN61326 standard prescribes both emission and immunity
requirements for laboratory, measurement, and control equipment.
This unit has been tested and found to comply with the limits for a Class A
digital device. Please refer to the Declaration of Conformity.
Independent Laboratory Testing
This unit has undergone extensive testing according to the European Union
Directive and Standards. All pre-qualification tests were performed
internally, at EXFO, while all final tests were performed externally, at an
independent, accredited laboratory. This guarantees the unerring
objectivity and authoritative compliance of all test results.
IMPORTANT
Use of shielded remote I/O cables, with properly grounded shields
and metal connectors, is recommended in order to reduce radio
frequency interference that may emanate from these cables.

Certification Information
Multi-Wavelength Meter vii
Electro-Optical Engineering
Application of Council Directive(s): 73/23/EEC - The Low Voltage Directive
89/336/EEC - The EMC Directive
Manufacturer’s Name: EXFO ELECTRO-OPTICAL ENG.
Manufacturer’s Address: 465 Godin Avenue
Vanier, Quebec
Canada G1M 3G7
[phone]
Equipment Type/Environment: Industrial Scientific Equipment
Trade Name/Model No.: IQS-5320 Multiwavelength Meter
Year of Conformity Assessment: 2002
Standard(s) to which Conformity is Declared:
EN 61010-1:1990 Safety Requirements for Electrical Equipment for Measurement, Control,
and Laboratory Use, Part 1: General Requirements.
EN 55022:1994/
A2: 1997
Limits and Methods of Measurement of Radio Disturbance Characteristic
s
of Information Technology Equipment.
EN 60825-1: Ed. 1.1 1998 Safety of laser products – Part 1: Equipment classifications, requiremen
and user’s guide.
EN 61326:1997/ A1: 1998
+ A2: 2000
Electrical Equipment for Measurement, Control and Laboratory
Use - EMC Requirements
I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive and Standards.
Manufacturer
Signature:
Full Name: Stephen Bull, E. Eng
Position: Vice-President Research and
Development
Address: 465 Godin Avenue Vanier, Quebec,
Canada
Date: March 19, 2002
DECLARATION OF CONFORMITY

Multi-Wavelength Meter 1
1 Introducing the IQS-5320
Multi-Wavelength Meter
Wavelength-division multiplexing (WDM) plays a dominant role in the
telecommunications industry. Using multiple data streams over separate
channels on the same fiber has created a need for new test procedures
and equipment. In fact, WDM had added another dimension to existing test
procedures, but in addition to time and power, we now need to be
concerned with wavelength.
Main Features
Specifically designed for WDM testing, the IQS-5320 Multi-Wavelength
Meter (MWM), used with the IQS-500 Intelligent Test System platform,
features wavelength accuracy with a user-friendly graphical interface. The
MWM is the perfect tool for system operators who are facing new dense
wavelength-division multiplexing (DWDM) testing challenges.
The IQS-5320 Multi-Wavelength Meter is designed for the high-precision
measurements required in testing and maintaining DWDM systems.
The MWM’s internal reference HeNe laser provides absolute accuracy
within a few picometers.
Its software offers a user-friendly interface for flexible control of all your
MWM’s features. The IQS-5320 MWM’s is housed in the IQS-500 Intelligent
Test System, which enables it to take advantage of the modularity of the
platform and to be used in conjunction with the Optical Spectrum
Analyzer, PMD and other modules to meet other testing needs.
The IQS-5320 Multi-Wavelength Meter supports local control (via the
IQS Manager software) and remote control (through a GPIB interface—
using SCPI commands or LabVIEW drivers available on the installation
CD-ROM).

Introducing the IQS-5320 Multi-Wavelength Meter
2IQS-5320
Typical Appl ications
Typical Applications
By allowing you to perform laser diode spectral characterization, the MWM
is ideal for controlling the drift of DWDM sources in transmission system
qualification and reliability testing.
The IQS-5320 Multi-Wavelength Meter can also be used for
➤characterizing and testing passive components
➤stabilizing flatness
➤redistributing EDFA spectral gain
➤calibrating tunable lasers
Retaining screw knob
IQS-5320
LED push button Multi-Wavelength Meter
Detector port