Keysight N4391A User manual

Getting Started
Keysight N4391A/N4392A
Optical Modulation Analyzer

Notices
© Keysight Technologies 2008-2014
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.
Trademarks
UNIX is a registered trademark of UNIX Sys-
tem Laboratories in the U.S.A. and other
countries. Target is copyrighted by
Thru-Put Systems, Inc.
Manual Part Number
N4392-91011
Edition
Edition 2.0, October 2014
Printed in Germany
Keysight Technologies, Inc.
Keysight Technologies R&D and Marketing-
GmbH & Co. KG
Herrenberger Str. 130
71034 Böblingen, Germany
Warranty
THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED "AS IS," AND IS
SUBJECT 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
MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. KEYSIGHT SHALL
NOT BE LIABLE FOR ERRORS OR FOR
INCIDENTAL OR CONSEQUENTIAL
DAMAGES IN CONNECTION WITH THE
FURNISHING, USE, OR PERFORMANCE OF
THIS DOCUMENT OR ANY INFORMATION
CONTAINED HEREIN. SHOULD KEYSIGHT
AND THE USER HAVE A SEPARATE
WRITTEN AGREEMENT WITH WARRANTY
TERMS COVERING THE MATERIAL IN THIS
DOCUMENT THAT CONFLICT WITH THESE
TERMS, THE WARRANTY TERMS IN THE
SEPARATE AGREEMENT WILL 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 Keysight 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. Gov-
ernment 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 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.
WARNING
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 N4391A/N4392A Optical Modulation Analyzer, Getting Started

Keysight N4391A/N4392A Optical Modulation Analyzer, Getting Started 3
Safety Summary
The following general safety precautions must be observed during all phases of operation
of this instrument. Failure to comply with these precautions or with specific warnings or
operating instructions in the product manuals violates safety standards of design,
manufacture, and intended use of the instrument. Keysight Technologies assumes no
liability for the customer's failure to comply with these requirements. Product manuals
are provided with your instrument on CD-ROM and/or in printed form. Printed manuals
are an option for many products. Manuals may also be available on the Web. Go to
www.keysight.com and type in your product number in the Search field at the top of the
page.
General This product is a Safety Class 1 instrument (provided with a protective earth terminal).
The protective features of this product may be impaired if it is used in a manner not
specified in the operation instructions.
All Light Emitting Diodes (LEDs) used in this product are Class 1 LEDs as per IEC
60825-1.
Environment Conditions This instrument is intended for indoor use in an installation category II, pollution degree 2
environment. It is designed to operate at a maximum relative humidity of 95% and at
altitudes of up to 2000 meters.
Refer to the specifications tables for the ac mains voltage requirements and ambient
operating temperature range.
Before Applying Power Verify that all safety precautions are taken. The power cable inlet of the instrument serves
as a device to disconnect from the mains in case of hazard. The instrument must be
positioned so that the operator can easily access the power cable inlet. When the
instrument is rack mounted the rack must be provided with an easily accessible mains
switch.
Ground the Instrument To minimize shock hazard, the instrument chassis and cover must be connected to an
electrical protective earth ground. The instrument must be connected to the ac power
mains through a grounded power cable, with the ground wire firmly connected to an
electrical ground (safety ground) at the power outlet. Any interruption of the protective
(grounding) conductor or disconnection of the protective earth terminal will cause a
potential shock hazard that could result in personal injury.
Do Not Operate in an
Explosive Atmosphere
Do not operate the instrument in the presence of flammable gases or fumes.
Do Not Remove the
Instrument Cover
Operating personnel must not remove instrument covers. Component replacement and
internal adjustments must be made only by qualified personnel.
Instruments that appear damaged or defective should be made inoperative and secured
against unintended operation until they can be repaired by qualified service personnel.

4 Keysight N4391A/N4392A Optical Modulation Analyzer, Getting Started
Compliance and Environmental Information
Table 1 Compliance and Environmental Information
Safety Symbol Description
This product complies with 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 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 Keysight office, or see
www.keysight.com/environment/product/ for more information.

Keysight N4391A/N4392A Optical Modulation Analyzer, Getting Started 5
Contents
Safety Summary 3
Compliance and Environmental Information 4
1 Introduction
Documentation 10
N4391A Documentation 10
N4392A Documentation 10
Instructions for use 10
General Safety Considerations 11
Intended use 11
Safety symbols 11
Instrument markings 11
Initial Safety Information 14
Line power requirements 16
Environmental Information 17
N4391A/N4392A Shipping Contents 18
N4391A Contents 18
N4392A Contents 21
2 Getting Started
Mounting an Infiniium 90000 Z-Series High-Performance
Oscilloscope (option #M33, #Z20, #Z25, #Z33) on the Optical Test
Set 24
Concluding the setup for all options 29
Using the correct connectors 30
Enabling and disabling the laser output 31
Creating Your First Trace on the OMA 32

6 Keysight N4391A/N4392A Optical Modulation Analyzer, Getting Started
Contents
How to Reconfigure Your N4391A Hardware 36
How to Reconfigure Your N4392A Hardware 43
Installing Software Components 49
Downloading the Photonic Application Suite Package
Manager 50
Installing the Keysight N439xA Software 52
3 Performance Verification
N4391A Performance Verification 56
N4392A Performance Verification 56
Returning the Instrument 56
4 Rack Mount
Rack Mounting N4391A Z-Series Oscilloscopes 58
5 Technical Specifications
Specifications Terms and Conditions (N4391A) 70
Definitions 70
Specifications (Guaranteed) 70
Typical Values (Characteristics) 70
General Characteristics 70
Digital demodulation measurement conditions 70
N4391A Specifications 71
N4391A General Characteristics 76
Specifications Terms and Conditions (N4392A) 78
Definitions 78
Specifications (Guaranteed) 78
Typical Values (Characteristics) 78
General Characteristics 78
Reference Conditions 78
Reference Conditions for Error Vector Magnitude Noise Floor 78

Keysight N4391A/N4392A Optical Modulation Analyzer, Getting Started 7
Contents
N4392A Specifications 80
N4392A General Characteristics 82
6 Regulatory Information
Declaration of Conformity 86
Compliance with German Noise Requirements 88
Compliance with Canadian EMC Requirements 88
Index

8 Keysight N4391A/N4392A Optical Modulation Analyzer, Getting Started
Contents

Keysight N4391A/N4392A Optical Modulation Analyzer
Getting Started
1Introduction
Documentation / 10
General Safety Considerations / 11
N4391A/N4392A Shipping Contents / 18

10 Keysight N4391A/N4392A Optical Modulation Analyzer, Getting Started
1 Introduction
Documentation
N4391A Documentation
The documentation for the Keysight N4391A Optical Modulation Analyzer
consists of
• The documentation for the Keysight Infiniium Digital Signal Analyzer.
This documentation is supplied with the digital signal analyzer,
including extensive online help. Refer to it for using the digital signal
analyzer for modulation measurements, or for configuring the digital
signal analyzer.
• The documentation for the optical modulation analyzer and the
software application.
This consists of
•This booklet, which contains the information you need to get your
Optical Modulation Analyzer running, and to perform a first
measurement.
•The online help, which provides the instructions for use.
•The online help for the 89601B vector signal analysis software.
N4392A Documentation
The documentation for the Keysight N4392A Optical Modulation Analyzer
consists of
• This booklet, which contains the information you need to get your
Optical Modulation Analyzer running, and to perform a first
measurement.
• The online help, which provides the instructions for use.
• The online help for the 89601B vector signal analysis software.
Instructions for use
For further information, please refer to the online help.
You can refer to the online help for the Optical Modulation Analyzer by
selecting “Help/Show OMA Help” in the 89600 VSA software interface.