EN 61290-3-2:2008

SLOVENSKI STANDARD
01-december-2008
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Optical amplifiers - Test methods - Part 3-2: Noise figure parameters - Electrical
spectrum analyzer method (IEC 61290-3-2:2008)
Lichtwellenleiter-Verstärker - Prüfverfahren - Teil 3-2: Rauschzahlparameter - Verfahren
mit elektrischem Spektralanalysator (IEC 61290-3-2:2008)
Amplificateurs optiques - Méthodes d'essais - Partie 3-2: Paramètres du facteur de bruit -
Méthode de l'analyseur spectral électrique (IEC 61290-3-2:2008)
Ta slovenski standard je istoveten z: EN 61290-3-2:2008
ICS:
33.180.30 2SWLþQLRMDþHYDOQLNL Optic amplifiers
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61290-3-2
NORME EUROPÉENNE
October 2008
EUROPÄISCHE NORM
ICS 33.180.30 Supersedes EN 61290-3-2:2003

English version
Optical amplifiers -
Test methods -
Part 3-2: Noise figure parameters -
Electrical spectrum analyzer method
(IEC 61290-3-2:2008)
Amplificateurs optiques -  Lichtwellenleiter-Verstärker -
Méthodes d'essais - Prüfverfahren -
Partie 3-2: Paramètres du facteur de bruit - Teil 3-2: Rauschzahlparameter -
Méthode de l'analyseur spectral électrique Verfahren mit elektrischem
(CEI 61290-3-2:2008) Spektralanalysator
(IEC 61290-3-2:2008)
This European Standard was approved by CENELEC on 2008-10-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61290-3-2:2008 E
Foreword
The text of document 86C/784/CDV, future edition 2 of IEC 61290-3-2, prepared by SC 86C, Fibre optic
systems and active devices, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote
and was approved by CENELEC as EN 61290-3-2 on 2008-10-01.
This European Standard supersedes EN 61290-3-2:2003.
fibre amplifiers.
This standard is to be used in conjunction with EN 61290-3 and EN 61291-1.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61290-3-2:2008 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60793 NOTE  Harmonized in EN 60793 series (modified).
IEC 60825-1 NOTE  Harmonized as EN 60825-1:2007 (not modified).
IEC 60825-2 NOTE  Harmonized as EN 60825-2:2004 (not modified).
IEC 60874-1 NOTE  Harmonized as EN 60874-1:2007 (not modified).
__________
- 3 - EN 61290-3-2:2008
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

1) 2)
IEC 60728-6 - Cable networks for television signals, sound EN 60728-6 2003
signals and interactive services -
Part 6: Optical equipment
1) 2)
IEC 61290-3 - Optical amplifiers - Test methods - EN 61290-3 2008
Part 3: Noise figure parameters

1) 2)
IEC 61291-1 - Optical amplifiers - EN 61291-1 2006
Part 1: Generic specification
1)
Undated reference.
2)
Valid edition at date of issue.

IEC 61290-3-2
Edition 2.0 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical amplifiers – Test methods –
Part 3-2: Noise figure parameters – Electrical spectrum analyzer method

Amplificateurs optiques – Méthodes d’essais -
Partie 3-2: Paramètres du facteur de bruit – Méthode de l’analyseur spectral
électrique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
Q
CODE PRIX
ICS 33.180.30 ISBN 2-8318-9898-6
– 2 – 61290-3-2 © IEC:2008
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope and object.6
2 Normative references .6
3 Symbols, acronyms and abbreviations.7
4 Apparatus.8
5 Test specimen .10
6 Procedure .10
6.1 Frequency-scanning technique: calibration.11
6.2 Frequency-scanning technique: measurement.12
6.3 Selected-frequency technique: calibration and measurement .13
6.4 Measurement accuracy limitations.13
7 Calculation .14
7.1 Calculation of calibration results.14
7.2 Calculation of test results for the frequency-scanning technique.15
7.3 Calculation of test results for the selected-frequency technique.15
8 Test results .16
Bibliography.17

Figure 1 – Scheme of a measurement set-up .9

61290-3-2 © IEC:2008 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL AMPLIFIERS –
TEST METHODS –
Part 3-2: Noise figure parameters –
Electrical spectrum analyzer method

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61290-3-2 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition published in 2003 and constitutes a
technical revision. It includes updates to specifically address all types of optical amplifiers –
not just optical fibre amplifiers.
This standard should be read in conjunction with IEC 61290-3 and IEC 61291-1.

– 4 – 61290-3-2 © IEC:2008
The text of this standard is based on the following documents:
CDV Report on voting
86C/784/CDV 86C/828/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 61290 series, published under the general title Optical amplifiers –
Test methods, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the
data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
61290-3-2 © IEC:2008 – 5 –
INTRODUCTION
This part of IEC 61290 is devoted to the subject of optical amplifiers. The technology of
optical amplifiers is still rapidly evolving, hence amendments and new additions to this
standard can be expected.
Each symbol and abbreviation introduced in this standard is generally explained in the text
the first time it appears. However, for an easier understanding of the whole text, a list of all
symbols and abbreviations used in this standard is given in Clause 3.

– 6 – 61290-3-2 © IEC:2008
OPTICAL AMPLIFIERS –
TEST METHODS –
Part 3-2: Noise figure parameters –
Electrical spectrum analyzer method

1 Scope and object
This part of IEC 61290 applies to all commercially available optical amplifiers (OAs), including
OAs using optically pumped fibres (OFAs based on either rare-earth doped fibres or on the
Raman effect), semiconductor optical amplifiers (SOAs) and planar wave
...