1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationOptical amplifiersPart 4: Multichannel applications Performance specification templateBS EN 61291-4:2012National forewordThis British Standard is the UK implementation of EN 6129
2、1-4:2012. It isidentical to IEC 61291-4:2011. It supersedes BS EN 61291-4:2008 which iswithdrawn.The UK participation in its preparation was entrusted by Technical CommitteeGEL/86, Fibre optics, to Subcommittee GEL/86/3, Fibre optic systems andactive devices.A list of organizations represented on th
3、is 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 correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 74420 4ICS 33
4、.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 March 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61291-4:20
5、12EUROPEAN STANDARD EN 61291-4 NORME EUROPENNE EUROPISCHE NORM March 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2012 CENEL
6、EC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61291-4:2012 E ICS 33.180.30 Supersedes EN 61291-4:2008English version Optical amplifiers - Part 4: Multichannel applications - Performance specification template (IEC 61291-4:2011) Ampli
7、ficateurs optiques - Partie 4: Applications multicanaux - Modle de spcification de fonctionnement (CEI 61291-4:2011) Lichtwellenleiter-Verstrker - Teil 4: Mehrkanalanwendungen - Vorlage fr Leistungsspezifikationen (IEC 61291-4:2011) This European Standard was approved by CENELEC on 2011-12-29. CENEL
8、EC 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 ap
9、plication to the CEN-CENELEC Management Centre 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 CEN-
10、CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithu
11、ania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 61291-4:2012EN 61291-4:2012 - 2 - Foreword The text of document 86C/993/CDV, future edition 3 of IEC 61291-4, prepared by SC 86C, “Fibre o
12、ptic systems and active devices“, of IEC/TC 86, “Fibre optics“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61291-4:2012. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national s
13、tandard or by endorsement (dop) 2012-09-29 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2014-12-29 This document supersedes EN 61291-4:2008 EN 61291-4:2012 includes the following significant technical changes with respect to EN 61291-4:2008: Th
14、e transient parameter test methods, EN 61290-4 series , have been added to Tables 1, 2 and 3. This standard is to be used in conjunction with EN 61291-1. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not
15、 be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61291-4:2011 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
16、the standards indicated: IEC 61280 series NOTE Harmonized in EN 61280 series. IEC 61291-2 NOTE Harmonized as EN 61291-2. BS EN 61291-4:2012- 3 - EN 61291-4:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following docume
17、nts, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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
18、publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60825-1 - Safety of laser products - Part 1: Equipment classification and requirements EN 60825-1 - IEC 61290 Series Optical amplifiers - Test methods EN 61290
19、 Series IEC 61291-1 - Optical amplifiers - Part 1: Generic specification EN 61291-1 - IEC 61291-5-2 - Optical amplifiers - Part 5-2: Qualification specifications - Reliability qualification for optical fibre amplifiers EN 61291-5-2 - BS EN 61291-4:2012 2 61291-4 IEC:2011 CONTENTS INTRODUCTION . 5 1
20、Scope . 6 2 Normative references 6 3 Terms, definitions and abbreviations . 6 3.1 Terms and definitions 6 3.2 Overview of multichannel definitions 6 3.3 Abbreviations . 7 4 Product specification worksheet for booster (power) amplifiers (BA) 8 5 Product specification worksheet for pre-amplifiers (PA)
21、 . 9 6 Product specification worksheet for line amplifiers (LA) . 9 7 Electromagnetic compatibility requirements . 10 Bibliography 11 Figure 1 An optical amplifier in a multichannel application . 7 Table 1 Minimum list of relevant parameters of BA amplifiers to be specified for multichannel applicat
22、ions 8 Table 2 Minimum list of relevant parameters of pre-amplifiers to be specified for multichannel applications 9 Table 3 Minimum list of relevant parameters of line amplifiers to be specified for multichannel applications 10 BS EN 61291-4:201261291-4 IEC:2011 5 INTRODUCTION This International St
23、andard is devoted to the subject of optical amplifiers. The technology of optical amplifiers is still rapidly evolving, hence amendments and new editions to this standard can be expected. Each abbreviation introduced in this International Standard is generally explained in the text the first time it
24、 appears. However, for an easier understanding of the whole text, a list of abbreviations used in this International Standard is given in 3.3. BS EN 61291-4:2012 6 61291-4 IEC:2011 OPTICAL AMPLIFIERS Part 4: Multichannel applications Performance specification template 1 Scope This part of IEC 61291
25、applies to optical amplifier (OA) devices and sub-systems to be used in multichannel applications. For single channel applications, use IEC 61291-2. The object of this performance specification template is to provide a frame for the preparation of detail specifications on the performances of OA devi
26、ces and sub-systems to be used in multichannel applications. Detail product specification writers may add specification parameters and/or groups of specification parameters for particular applications. However, detail specification writers may not remove specification parameters specified in this st
27、andard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including a
28、ny amendments) applies. NOTE A list of informative references is given in the bibliography. IEC 60825-1, Safety of laser products Part 1: Equipment classification and requirements IEC 61290 (all parts), Optical amplifiers Test methods IEC 61291-1, Optical amplifiers Part 1: Generic specification IEC
29、 61291-5-2, Optical amplifiers Part 5-2: Qualification specifications Reliability qualification for optical fibre amplifiers 3 Terms, definitions and abbreviations 3.1 Terms and definitions For the purposes of this document, the terms, definitions and parameters given in IEC 61291-1 and the followin
30、g apply. 3.2 Overview of multichannel definitions Parameters specified for optical devices are those characterizing the transmission, operation, reliability and environmental properties of the OA device, which is seen as a black box from a general point of view as defined in the generic specificatio
31、n IEC 61291-1. Each test method (OA test methods, IEC 61290 series) is generally given for the measurement of a group of homogeneous parameters. The grouping of the homogeneous parameters is BS EN 61291-4:201261291-4 IEC:2011 7 given in the generic specification, IEC 61291-1, together with the corre
32、sponding test method specification number. Safety characteristics of optical amplifiers described in the present standard are provided in IEC 60825-1. A typical configuration of an OA in a multichannel application is illustrated in Figure 1. At the transmitting side, m signals, coming from m optical
33、 transmitters, Tx1, Tx2, . . . Txm, each with a unique wavelength, 1, 2, . . . m, respectively, are combined by an optical multiplexer (OM). At the receiving side, the m signals at 1, 2, . . . m, are separated with an optical demultiplexer (OD) and routed to separate optical receivers, Rx1, Rx2, . .
34、 . Rxm, respectively. To characterize the OA in this multichannel application an input reference plane and an output reference plane are defined at the OA input and output ports, respectively, as shown in Figure 1. Tx1 Tx2 Txm OM OD OA Rx1 Rx2 Rxm Input reference plane Pi1. . . . . . () Output refer
35、ence plane Pi2PimPo1Po2PomPASEIEC 1283/08 Figure 1 An optical amplifier in a multichannel application At the input reference plane, m input signals at the m wavelengths are considered, each with a unique power level, Pi1, Pi2, . . . Pim, respectively. At the output reference plane, m output signals
36、at the m wavelengths, resulting from the optical amplification of the corresponding m input signals, are considered, each with power level Po1, Po2, . . . Pom, respectively. Moreover, the amplified spontaneous emission, ASE, with a noise power spectral density, PASE(), is also to be considered at th
37、e OA output port. Most definitions of relevant parameters given in the generic specification IEC 61291-1 can be suitably extended to multichannel applications. When this extension is straightforward, the word “channel” will be added to the pertinent parameter. In particular, the noise figure and the
38、 signal-spontaneous noise figure as defined in IEC 61291-1 may be extended to multichannel applications, channel by channel, by considering the value of PASE() at each channel wavelength and the channel signal bandwidth. For each channel wavelength there will be a unique value of noise figure that w
39、ill be a function of the input power level of all signals. In this case the parameters, channel noise figure and channel signal-spontaneous noise figure, are introduced. 3.3 Abbreviations ASE Amplified spontaneous emission BA Booster (power) amplifier LA Line amplifier na Not applicable OA Optical a
40、mplifier OFA Optical fibre amplifier BS EN 61291-4:2012 8 61291-4 IEC:2011 PA Pre-amplifier PMD Polarization mode dispersion 4 Product specification worksheet for booster (power) amplifiers (BA) The worksheet in Table 1 contains a minimum list of specification parameters to be included in product sp
41、ecifications of OA devices to be used as booster (power) amplifiers in multichannel applications, together with their specification criteria (that is in terms of maximum value, minimum value or both) and the indication of the corresponding standard test method. Table 1 Minimum list of relevant param
42、eters of BA amplifiers to be specified for multichannel applications Parameters Unit Minimum value Maximum value Test method Transmission characteristics Channel allocation nm or THz Under consideration Channel input power range dBm IEC 61290-10 series Total input power range dBm IEC 61290-10 series
43、 Channel output power range dBm IEC 61290-10 series Maximum total output power dBm na IEC 61290-10 series Channel addition/removal gain transient response dB na IEC 61290-4 series Multichannel gain variation (gain flatness) dB na IEC 61290-10 series Channel signal-spontaneous noise figure (channel n
44、oise figure) dB na IEC 61290-3 series Input reflectance dB na IEC 61290-5 series Output reflectance dB na IEC 61290-5 series Pump leakage to input (for OFA only) dBm na IEC 61290-6 series Environmental parameters Operating temperature range C IEC 61291-5-2 Maximum operating relative humidity % na IE
45、C 61291-5-2 Maximum operating vibration severity Range of frequencies Hz IEC 61291-5-2 Amplitude Peak-to-peak mm p-p na Duration s na Storage temperature range C IEC 61291-5-2 Maximum storage relative humidity % na IEC 61291-5-2 Maximum shock severity, free drop Drop height mm na IEC 61291-5-2 Safet
46、y parameters Safety laser classification na na IEC 60825-1 BS EN 61291-4:201261291-4 IEC:2011 9 5 Product specification worksheet for pre-amplifiers (PA) The worksheet in Table 2 contains a minimum list of specification parameters to be included in product specifications of OA devices to be used as
47、pre-amplifiers in multichannel applications, together with their specification criteria (that is in terms of maximum value, minimum value or both) and the indication of the corresponding standard test method. Table 2 Minimum list of relevant parameters of pre-amplifiers to be specified for multichan
48、nel applications Parameters Unit Minimum value Maximum value Test method Transmission characteristics Channel allocation nm or THz Under consideration Channel input power range dBm IEC 61290-10 series Total input power range dBm IEC 61290-10 series Channel output power range dBm IEC 61290-10 series
49、Maximum total output power dBm na IEC 61290-10 series Channel addition/removal transient gain response dB na IEC 61290-4 series Channel signal-spontaneous noise figure dB na IEC 61290-3 series Channel gain dB na IEC 61290-10 series Multichannel gain variation (gain flatness) dB na IEC 61290-10 series Input reflectance dB na IEC 61290-5 series Output reflectance dB na IEC 61290-5 series Pump leakage to output (for OFA only) dBm na IEC 61290-6 series Environmental parame
