SIST EN 61290-10-2:2004
(Main)Optical amplifiers - Test methods -- Part 10-2: Multichannel parameters - Pulse method using a gated optical spectrum analyzer
Optical amplifiers - Test methods -- Part 10-2: Multichannel parameters - Pulse method using a gated optical spectrum analyzer
Applies to optical fibre amplifiers (OFA) using active fibres, containing rare-earth dopants, currently commercially available. The object is to establish uniform requirements for accurate and reliable measurements of the signal-spontaneous noise figure as defined in 3.1.18 of EN 61291-1.The test method described is, in general, for multichannel applications. Single-channel applications are a special case of multichannel applications.
Prüfverfahren für Lichtwellenleiter-Verstärker -- Teil 10-2: Mehrkanalparameter - Pulsmethode bei Verwendung eines ausblendbaren optischen Spektralanalysators
Amplificateurs optiques - Méthodes d'essai -- Partie 10-2: Paramètres à canaux multiples - Méthode d'impulsion utilisant un analyseur de spectre optique stroboscopique
S'applique aux amplificateurs à fibres optiques (AFO) utilisant des fibres actives, dopées aux terres rares, qui sont actuellement disponibles sur le marché. Etablit des prescriptions uniformes en vue de mesures précises et fiables du facteur de bruit signal/émission spontanée défini en 3.1.18 de la EN 61291-1. La méthode d'essai décrite est, en général, destinée à des applications à canaux multiples. Les applications à canal unique constituent un cas spécial d'applications à canaux multiples.
Optični ojačevalci – Preskusne metode – 10-2. del: Parametri z več kanali - metoda s pulzom pri uporabi izključevalnega optičnega spektralnega analizatorja (IEC 61290-10-2:2003)*
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Standards Content (Sample)
SLOVENSKI SIST EN 61290-10-2:2004
STANDARD
september 2004
Optični ojačevalci – Preskusne metode – 10-2. del: Parametri z več kanali -
metoda s pulzom pri uporabi izključevalnega optičnega spektralnega
analizatorja (IEC 61290-10-2:2003)*
Optical amplifiers - Test methods - Part 10-2: Multichannel parameters - Pulse
method using a gated optical spectrum analyzer (IEC 61290-10-2:2003)
ICS 33.180.30 Referenčna številka
SIST EN 61290-10-2:2004(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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EUROPEAN STANDARD EN 61290-10-2
NORME EUROPÉENNE
EUROPÄISCHE NORM July 2003
ICS 33.180.30
English version
Optical amplifiers -
Test methods
Part 10-2: Multichannel parameters -
Pulse method using a gated optical spectrum analyzer
(IEC 61290-10-2:2003)
Amplificateurs optiques - Prüfverfahren für Lichtwellenleiter-
Méthodes d'essai Verstärker
Partie 10-2: Paramètres à canaux Teil 10-2: Mehrkanalparameter -
multiples - Pulsmethode bei Verwendung
Méthode d'impulsion utilisant un analyseur eines ausblendbaren optischen
de spectre optique stroboscopique Spektralanalysators
(CEI 61290-10-2:2003) (IEC 61290-10-2:2003)
This European Standard was approved by CENELEC on 2003-02-01. 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and 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
© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61290-10-2:2003 E
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EN 61290-10-2:2003 - 2 -
Foreword
The text of document 86C/461/FDIS, future edition 1 of IEC 61290-10-2, 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 61290-10-2 on 2003-02-01.
This standard shall be read in conjunction with EN 61291-1:1998
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) 2004-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2006-02-01
The International Electrotechnical Commission (IEC) and CENELEC draw attention to the fact that it is claimed
that compliance with this International Standard/European Standard may involve the use of two patents.
One patent concerns a technique for determining the amplified spontaneous emission noise of an optical
amplifier in the presence of an optical signal given in clause 3 and clause 5.
The IEC and CENELEC take no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate licences under reasonable
and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement
of the holder of this patent right is registered with the IEC. Information may be obtained from:
Agilent Technologies
Palo Alto (CA)
USA
Another patent concerns a measurement system and noise measurement apparatus for an optical amplifier
given in clause 3 and clause 5.
The IEC and CENELEC take no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate licences under reasonable
and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement
of the holder of this patent right is registered with the IEC. Information may be obtained from:
Fujitsu Limited
Tokyo
Japan
Attention is drawn to the possibility that some of the elements of this International Standard/European Standard
may be the subject of patent rights other than those identified above. IEC and CENELEC shall not be held
responsible for identifying any or all such patent rights.
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annex ZA is normative and annexes A and B are informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61290-10-2:2003 was approved by CENELEC as a European
Standard without any modification.
__________
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- 3 - EN 61290-10-2:2003
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
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 61290-10-1 2003 Optical amplifiers - Test methods EN 61290-10-1 2003
Part 10-1: Multichannel parameters -
Pulse method using an optical switch
and optical spectrum analyzer
IEC 61291-1 1998 Optical fibre amplifiers EN 61291-1 1998
Part 1: Generic specification
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NORME CEI
INTERNATIONALE IEC
61290-10-2
INTERNATIONAL
Première édition
STANDARD
First edition
2003-01
Amplificateurs optiques –
Méthodes d'essai –
Partie 10-2:
Paramètres à canaux multiples –
Méthode d'impulsion utilisant un analyseur
de spectre optique stroboscopique
Optical amplifiers –
Test methods –
Part 10-2:
Multichannel parameters –
Pulse method using a gated optical
spectrum analyzer
IEC 2003 Droits de reproduction réservés Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
P
Commission Electrotechnique Internationale PRICE CODE
International Electrotechnical Commission
Международная Электротехническая Комиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
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61290-10-2 IEC:2003 – 3 –
CONTENTS
FOREWORD . 5
INTRODUCTION .9
1 Scope and object .11
2 Normative references.11
3 Apparatus .13
4 Test sample.17
5 Procedure.17
5.1 Calibration .19
5.2 Output signal and noise measurement .19
6 Calculations.21
7 Test results.23
Annex A (informative) List of symbols and abbreviations.25
Annex B (informative) Pulse repetition frequency measurements .27
Bibliography.31
Figure 1 – Test apparatus for signal-spontaneous noise figure parameter measurement –
Typical arrangement.13
Figure 2 – Two arrangements of the optical pulse source module.15
Figure 3 – Timing diagram .21
Figure B.1 – Set-up to evaluate gain recovery error versus modulation rate .27
Figure B.2 – Gain recovery error versus modulation frequency
with pump current as a parameter .27
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61290-10-2 IEC:2003 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL AMPLIFIERS –
TEST METHODS –
Part 10-2: Multichannel parameters –
Pulse method using a gated optical spectrum analyzer
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed that compliance
with this document may involve the use of two patents.
One patent concerns a technique for determining the amplified spontaneous emission noise of an optical amplifier
in the presence of an optical signal given in clause 3 and clause 5.
IEC takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate licenses under reasonable
and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of
the holder of this patent right is registered with the IEC. Information may be obtained from:
Agilent Technologies
Palo Alto (CA)
USA
Another patent concerns a measurement system and noise measurement apparatus for an optical amplifier given in
clause 3 and clause 5.
IEC takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate licenses under reasonable
and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of
the holder of this patent right is registered with the IEC. Information may be obtained from:
Fujitsu Limited
Tokyo
Japan
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights other than those identified above. IEC shall not be held responsible for identifying any or all such
patent rights.
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61290-10-2 IEC:2003 – 7 –
International Standard IEC 61290-10-2 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre optics.
This standard shall be read in conjunction with IEC 61291-1.
The text of this standard is based on the following documents:
FDIS Report on voting
86C/461/FDIS 86C/484/RVD
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.
Annexes A and B are for information only.
The committee has decided that the contents of this publication will remain unchanged until
2007. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
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61290-10-2 IEC:2003 – 9 –
INTRODUCTION
As far as can be determined, this part of IEC 61290 is the first international standard on this
subject. The technology of optical fibre amplifiers is still evolving, hence amendments and
new editions to this document should be expected.
Each abbreviation introduced in this standard is explained in the text at least the first time it
appears. However, for an easier understanding of the whole text, a list of all abbreviations
used is given in annex A.
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61290-10-2 IEC:2003 – 11 –
OPTICAL AMPLIFIERS –
TEST METHODS –
Part 10-2: Multichannel parameters –
Pulse method using a gated optical spectrum analyzer
1 Scope and object
This part of IEC 61290 applies to optical fibre amplifiers (OFA) using active fibres, containing
rare-earth dopants, currently commercially available.
The object of this International Standard is to establish uniform requirements for accurate and
reliable measurements of the signal-spontaneous noise figure as defined in 3.1.18 of
IEC 61291-1.
The test method independently detects amplified signal power and amplified spontaneous
emission (ASE) power by launching optical pulses into the OFA under test. The ASE level is
measured by synchronously measuring the power on an optical spectrum analyzer (OSA)
during the optical pulse off period. The average optical signal level is measured by random
sampling in the OSA.
Such measurement is possible because the gain response of the rare-earth doped OFA is
relatively slow, particularly in Er-doped OFA. However, since the OFA gain dynamics v
...
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