EN 61290-10-4:2007

SLOVENSKI STANDARD
01-november-2007
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Optical amplifiers - Test methods -- Part 10-4: Multichannel parameters - Interpolated
source subtraction method using an optical spectrum analyzer (IEC 61290-10-4:2007)
Prüfverfahren für Lichtwellenleiter-Verstärker - Teil 10-4: Mehrkanal-Parameter - Quellen
-Interpolations- und Subtraktionsverfahren unter Verwendung eines optischen
Spektralanalysators (IEC 61290-10-4:2007)
Amplificateurs optiques - Méthodes d'essais -- Partie 10-4: Parametres a canaux
multiples - Méthode par soustraction de la source interpolée en utilisant un analyseur de
spectre optique (IEC 61290-10-4:2007)
Ta slovenski standard je istoveten z: EN 61290-10-4:2007
ICS:
33.180.30 2SWLþQLRMDþHYDOQLNL Optic amplifiers
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61290-10-4
NORME EUROPÉENNE
July 2007
EUROPÄISCHE NORM
ICS 33.180.30
English version
Optical amplifiers -
Test methods -
Part 10-4: Multichannel parameters -
Interpolated source subtraction method
using an optical spectrum analyzer
(IEC 61290-10-4:2007)
Amplificateurs optiques -  Prüfverfahren
Méthodes d'essais - für Lichtwellenleiter-Verstärker -
Partie 10-4: Paramètres Teil 10-4: Mehrkanal-Parameter -
à canaux multiples - Quellen-Interpolations- und
Méthode par soustraction Subtraktionsverfahren
de la source interpolée en utilisant unter Verwendung eines
un analyseur de spectre optique optischen Spektralanalysators
(CEI 61290-10-4:2007) (IEC 61290-10-4:2007)

This European Standard was approved by CENELEC on 2007-06-01. 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

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61290-10-4:2007 E
Foreword
The text of document 86C/724/CDV, future edition 1 of IEC 61290-10-4, prepared by SC 86C, Fibre optic
systems and active devices, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel
Unique Acceptance Procedure and was approved by CENELEC as EN 61290-10-4 on 2007-06-01.
This standard is to be used in conjunction with EN 61291-1:2006.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2008-03-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2010-06-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61290-10-4:2007 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 61290-1-1 NOTE  Harmonized as EN 61290-1-1:2006 (not modified).
IEC 61290-3 NOTE  Harmonized as EN 61290-3:2000 (not modified).
__________
- 3 - EN 61290-10-4:2007
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

IEC 61291-1 2006 Optical amplifiers - EN 61291-1 2006
Part 1: Generic specification
1) 2)
IEC 61291-4 - Optical amplifiers - EN 61291-4 2003
Part 4: Multichannel applications -
Performance specification template

1)
Undated reference.
2)
Valid edition at date of issue.

INTERNATIONAL IEC
STANDARD
CEI
61290-10-4
NORME
First edition
INTERNATIONALE
Première édition
2007-05
Optical amplifiers –
Test methods –
Part 10-4:
Multichannel parameters –
Interpolated source subtraction method
using an optical spectrum analyzer

Amplificateurs optiques –
Méthodes d’essais –
Partie 10-4:
Paramètres à canaux multiples –
Méthode par soustraction de la source interpolée
en utilisant un analyseur de spectre optique
PRICE CODE
Q
CODE PRIX
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
Pour prix, voir catalogue en vigueur

– 2 – 61290-10-4 © IEC:2007
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope and object.6
2 Normative references .6
3 Abbreviated terms .7
4 Apparatus.7
5 Test sample.8
6 Procedure .9
6.1 Calibration.9
6.1.1 Calibration of optical bandwidth.9
6.1.2 Calibration of OSA power correction factor .10
6.2 Measurement .11
6.3 Calculation .12
7 Test results .12

Annex A (normative) Limitations of the interpolated source subtraction technique due
to source spontaneous emission .13

Bibliography.17

Figure 1 – Apparatus for gain and noise figure measurement.7
Figure A.1 – DI subtraction error as a function of source spontaneous emission level.14
Figure A.2 – Spectral plot showing additive higher noise level from spontaneous
emission of individual laser sources and broadband multiplexer.16
Figure A.3 – Significantly reduced spontenous emmision using wavelength selective
multiplexer .16

61290-10-4 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL AMPLIFIERS –
TEST METHODS –
Part 10-4: Multichannel parameters –
Interpolated source subtraction method using
an optical spectrum analyzer
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 61290-10-4 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre optics.
This standard shall be used in conjunction with IEC 61291-1. It was established on the basis
of the second (2006) edition of that standard.
The text of this standard is based on the following documents:
CDV Report on voting
86C/724/CDV 86C/742/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.

– 4 – 61290-10-4 © IEC:2007
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the 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.
61290-10-4 © IEC:2007 – 5 –
INTRODUCTION
This International Standard 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.
– 6 – 61290-10-4 © IEC:2007
OPTICAL AMPLIFIERS –
TEST METHODS –
Part 10-4: Multichannel parameters –
Interpolated source subtraction method using
an optical spectrum analyzer
1 Scope and object
This part of IEC 61290 applies to all commercially available optical amplifiers (OAs) and
optically amplified subsystems. It applies to OAs using optically pumped fibres (OFAs based
on either rare-earth doped fibres or on the Raman effect), semiconductor optical amplifiers
(SOAs) and waveguides (POWA).
The object of this standard is to establish uniform requirements for accurate and reliable
measurements, by means of the interpolated source subtraction method using an optical
spectrum analyzer. The following OA parameters, as defined in Clause 3 of IEC
...