1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Optical amplifiers Test methods Part 10-1: Multichannel parameters Pulsemethod using an optical switch and optica
2、lspectrum analyzerBS EN 61290-10-1:2009National forewordThis British Standard is the UK implementation of EN 61290-10-1:2009. It isidentical to IEC 61290-10-1:2009. It supersedes BS EN 61290-10-1:2003which is withdrawn.The UK participation in its preparation was entrusted by Technical CommitteeGEL/8
3、6, Fibre optics, to Subcommittee GEL/86/3, Fibre optic systems andactive devices.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its corr
4、ect application. BSI 2009ISBN 978 0 580 60094 4ICS 33.180.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 July 2009Amendments issued since publicationAmd. No.
5、 Date Text affectedBRITISH STANDARDBS EN 61290-10-1:2009EUROPEAN STANDARD EN 61290-10-1 NORME EUROPENNE EUROPISCHE NORM May 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Se
6、cretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61290-10-1:2009 E ICS 33.180.30 Supersedes EN 61290-10-1:2003English version Optical amplifiers - Test methods - Part 10-1: Multic
7、hannel parameters - Pulse method using an optical switch and optical spectrum analyzer (IEC 61290-10-1:2009) Amplificateurs optiques - Mthodes dessai - Partie 10-1: Paramtres canaux multiples - Mthode dimpulsion utilisant un interrupteur optique et un analyseur de spectre optique (CEI 61290-10-1:200
8、9) Prfverfahren fr Lichtwellenleiter-Verstrker - Teil 10-1: Mehrkanalparameter - Pulsmethode bei Verwendung eines optischen Schalters und optischen Spektralanalysators (IEC 61290-10-1:2009) This European Standard was approved by CENELEC on 2009-04-01. CENELEC members are bound to comply with the CEN
9、/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
10、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 v
11、ersions. 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, Roma
12、nia, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 61290-10-1:2009 2 Foreword The text of document 86C/778/CDV, future edition 2 of IEC 61290-10-1, prepared by SC 86C, Fibre optic systems and active devices, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC par
13、allel vote and was approved by CENELEC as EN 61290-10-1 on 2009-04-01. This European Standard supersedes EN 61290-10-1:2003. It contains updated references and cautions on proper use of the procedure. This European Standard is to be read in conjunction with EN 61291-1. The following dates were fixed
14、: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2010-01-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-04-01 Annex ZA has been added by CENELEC. _ En
15、dorsement notice The text of the International Standard IEC 61290-10-1:2009 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 60793-1 NOTE Harmonized in EN 60793-1
16、series (partially 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). IEC 61290-1-1 NOTE Harmonized as EN 61290-1-1:2006 (not modified). IEC 61290-3 NOT
17、E Harmonized as EN 61290-3:2008 (not modified). _ BS EN 61290-10-1:2009 3 EN 61290-10-1:2009 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this documen
18、t. 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. Publica
19、tion Year Title EN/HD Year IEC 61291-1 - 1)Optical amplifiers - Part 1: Generic specification EN 61291-1 2006 2)1)Undated reference. 2)Valid edition at date of issue. BS EN 61290-10-1:2009IEC 61290-10-1Edition 2.0 2009-03INTERNATIONAL STANDARD NORME INTERNATIONALEOptical amplifiers Test methods Part
20、 10-1: Multichannel parameters Pulse method using an optical switch and optical spectrum analyzer Amplificateurs optiques Mthodes dessai Partie 10-1: Paramtres canaux multiples Mthode dimpulsion utilisant un interrupteur optique et un analyseur de spectre optique INTERNATIONAL ELECTROTECHNICAL COMMI
21、SSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE TICS 33.180.30 PRICE CODECODE PRIXISBN 2-8318-1032-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61290-10-1 IEC:2009 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope a
22、nd object7 2 Normative references .7 3 Abbreviated terms 7 4 Apparatus.8 5 Test sample10 6 Procedure 10 6.1 Calibration.11 6.1.1 Calibration of OSA power measurement 11 6.1.2 Calibration of the pulse duty ratio 11 6.1.3 Calibration of the sampling module12 6.1.4 Calibration of dynamic isolation .13
23、6.2 OA measurement 15 6.2.1 Timing adjustment for ASE and amplified signal power measurement15 6.2.2 ASE measurement.16 6.2.3 Amplified signal power measurement.16 7 Calculation .17 7.1 General .17 7.2 Noise factor calculation .18 7.3 ASE power 18 7.4 Gain calculation 19 7.5 Average output signal po
24、wer .19 7.6 Noise figure calculation .19 8 Test results 19 Annex A (informative) Output waveforms for various EDFAs at 25 kHz and 500 kHz pulse rates20 Annex B (informative) Measurement accuracy versus pulse rate.22 Annex C (informative) Pulse repetition frequency measurements23 Bibliography24 Figur
25、e 1 Typical arrangement of the optical pulse test method.8 Figure 2 Two arrangements of the optical pulse source9 Figure 3 Static isolation of an optical switch.9 Figure 4 Definitions of rise time and fall time, trand tf of optical pulses .10 Figure 5 Measurement flow chart .11 Figure 6 Arrangement
26、for the sampling switch calibration.12 Figure 7 Arrangement for timing adjustment.13 Figure 8 Timing adjustment of the sampling switch 14 Figure 9 Timing chart for dynamic isolation calibration.15 Figure 10 Arrangement for OA measurement .16 Figure 11 Timing chart for ASE measurement 17 Figure 12 Ti
27、ming chart for amplified signal power measurement 17 BS EN 61290-10-1:200961290-10-1 IEC:2009 3 Figure A.1 EDFA output waveforms for various EDFAs 21 Figure B.1 NF measurement accuracy versus pulse rate22 Figure C.1 Set-up to evaluate gain recovery error versus modulation rate23 Figure C.2 Gain reco
28、very error versus modulation frequency with pump current as a parameter .23 BS EN 61290-10-1:2009 4 61290-10-1 IEC:2009 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL AMPLIFIERS TEST METHODS Part 10-1: Multichannel parameters Pulse method using an optical switch and optical spectrum analyzer FO
29、REWORD 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 e
30、lectrical 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
31、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 O
32、rganization 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 techn
33、ical 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 Publi
34、cations 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 nati
35、onal 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 b
36、e 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 Committ
37、ees 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 t
38、he 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 hel
39、d responsible for identifying any or all such patent rights International Standard IEC 61290-10-1 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.
40、It is a technical revision with updated references and cautions on proper use of the procedure. This International Standard is to be read in conjunction with IEC 61291-1. The text of this standard is based on the following documents: CDV Report on voting 86C/778/CDV 86C/809/RVC Full information on t
41、he voting for the approval of this standard can be found in the report on voting indicated in the above table. BS EN 61290-10-1:200961290-10-1 IEC:2009 5 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
42、the general title Optical amplifiers Test methods1)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
43、publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. _ 1)The first editions of some of these parts were published under the general title Optical fibre amplifiers Basic specification or Optical amplifier test methods. BS EN 61290-10-1:
44、2009 6 61290-10-1 IEC:2009 INTRODUCTION This International Standard is devoted to the subject of optical fibre amplifiers. The technology of optical fibre amplifiers is still rapidly evolving, hence amendments and new editions to this standard can be expected. BS EN 61290-10-1:200961290-10-1 IEC:200
45、9 7 OPTICAL AMPLIFIERS TEST METHODS Part 10-1: Multichannel parameters Pulse method using an optical switch and optical spectrum analyzer 1 Scope and object This part of IEC 61290 applies to optical amplifiers (OAs) using active fibres and waveguides, containing rare-earth dopants, currently commerc
46、ially available. The object of this standard is to establish uniform requirements for accurate and reliable measurements of the signal-spontaneous noise figure as defined in IEC 61291-1. The test method independently detects amplified signal power and amplified spontaneous emission (ASE) power by la
47、unching optical pulses into the OA under test and synchronously detecting “on“ and “off“ levels of the output pulses by using an optical sampling switch and an optical spectrum analyzer (OSA). Such measurement is possible because the gain response of the rare-earth doped OA is relatively slow, parti
48、cularly in Er-doped OAs. However, since the OA gain dynamics vary with amplifier types, operating conditions and control schemes, the gain dynamics should be carefully considered when applying the present test method to various OA. The manufacturer of the OA should present data validating the requir
49、ed modulation frequency to limit the error to 25 kHz. The gain change disappears for type C EDFA when the pulse rate is increased to 500 kHz as is seen from c) and d) of Figure A.1. Thus, the gain measurement and, accordingly, the NF measurement are accurate at 500 kHz. BS EN 61290-10-1:200961290-10-1 IEC:2009 21 a) EDFA type A at 25 kHz b) EDFA type B at 25 kHz c) EDFA type C a
