1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Optical fibresPart 1-48: Measurement methods and test procedures - Polarization mode dispersionBS EN 60793-1-48:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60793-1-48 December 2017 ICS 33.180.10 Supersedes
2、EN 60793-1-48:2007 English Version Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode Dispersion (IEC 60793-1-48:2017) Fibres optiques - Partie 1-48: Mthodes de mesure et procdures dessai - Dispersion de mode de polarisation (IEC 60793-1-48:2017) Lichtwellenleite
3、r - Teil 1-48: Messmethoden und Prfverfahren - Polarisationsmodendispersion (IEC 60793-1-48:2017) This European Standard was approved by CENELEC on 2017-09-27. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standa
4、rd 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 CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (Engl
5、ish, 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-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of
6、 Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, S
7、lovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2017 CENEL
8、EC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60793-1-48:2017 E National forewordThis British Standard is the UK implementation of EN 60793148:2017. It is identical to IEC 60793148:2017. It supersedes BS EN 60793148:2007, which is with
9、drawn.The UK participation in its preparation was entrusted to Technical Committee GEL/86/1, Optical fibres and cables.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a cont
10、ract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 93036 2ICS 33.180.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the aut
11、hority of the Standards Policy and Strategy Committee on 31 December 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60793148:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60793-1-48 December 2017 ICS 33.180.10 Supersedes EN 60793-1-48:2007 Engli
12、sh Version Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode Dispersion (IEC 60793-1-48:2017) Fibres optiques - Partie 1-48: Mthodes de mesure et procdures dessai - Dispersion de mode de polarisation (IEC 60793-1-48:2017) Lichtwellenleiter - Teil 1-48: Messmetho
13、den und Prfverfahren - Polarisationsmodendispersion (IEC 60793-1-48:2017) This European Standard was approved by CENELEC on 2017-09-27. 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 natio
14、nal standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A
15、version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulga
16、ria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
17、Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2017 CENELEC All rights of exploit
18、ation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60793-1-48:2017 E BS EN 60793148:2017EN 60793-1-48:2017 2 European foreword The text of document 86A/1678/CDV, future edition 3 of IEC 60793-1-48 , prepared by SC 86A “Fibres and cables“ of IEC/TC 86 “Fibre optics
19、“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60793-1-48:2017. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2018-06-27 latest date by
20、which the national standards conflicting with the document have to be withdrawn (dow) 2020-09-27 This document supersedes EN 60793-1-48:2007. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC shall not be held responsible fo
21、r identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 60793-1-48:2017 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 indica
22、ted: IEC 60793-1-44 NOTE Harmonized as EN 60793-1-44. IEC 60793-1-50 NOTE Harmonized as EN 60793-1-50. IEC 60793-2-50 NOTE Harmonized as EN 60793-2-50. IEC 60794-3 NOTE Harmonized as EN 60794-3. IEC 61280-4-4 NOTE Harmonized as EN 61280-4-4. IEC 61290-11-1 NOTE Harmonized as EN 61290-11-1. IEC 61290
23、-11-2 NOTE Harmonized as EN 61290-11-2. IEC 61300-3-32 NOTE Harmonized as EN 61300-3-32. BS EN 60793148:2017EN 60793-1-48:2017 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents are referred to in the text
24、in such a way that some or all of their content constitutes requirements 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 1 Where an International Publication has bee
25、n modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60793-1-1 - Optical fibres - Part 1-1: Meas
26、urement methods and test procedures - General and guidance EN 60793-1-1 - IEC/TR 61292-5 - Optical amplifiers - Part 5: Polarization mode dispersion parameter - General information - - ITU-T Recommendation G.650.2 - Definitions and test methods for statistical and non-linear related attributes of si
27、ngle-mode fibre and cable - - BS EN 60793148:2017This page deliberately left blank 2 IEC 60793-1-48:2017 IEC 2017 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 8 3 Terms, definitions, symbols and abbreviated terms 8 3.1 Terms and definitions 8 3.2 Symbols and abbreviated te
28、rms 8 4 General . 10 4.1 Methods for measuring PMD . 10 4.2 Reference test method 13 4.3 Applicability 13 5 Apparatus 14 5.1 General . 14 5.2 Light source and polarizers . 14 5.3 Input optics . 14 5.4 Input positioner . 14 5.5 Cladding mode stripper . 14 5.6 High-order mode filter . 15 5.7 Output po
29、sitioner 15 5.8 Output optics 15 5.9 Detector 15 5.10 Computer 15 6 Sampling and specimens . 15 6.1 General . 15 6.2 Specimen length . 16 6.3 Deployment. 16 6.3.1 General . 16 6.3.2 Uncabled fibre . 16 6.3.3 Optical fibre cable 16 7 Procedure 17 8 Calculation or interpretation of results . 17 9 Docu
30、mentation 17 9.1 Information required for each measurement 17 9.2 Information to be available 17 10 Specification information . 18 Annex A (normative) Requirements specific to method A (FA) Fixed analyser measurement method 19 A.1 Apparatus . 19 A.1.1 Block diagrams 19 A.1.2 Light source . 19 A.1.3
31、Analyser 20 A.2 Procedure . 20 A.2.1 Wavelength range and increment . 20 A.2.2 Complete the scans . 20 2 IEC 60793-1-48:2017 IEC 2017 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 8 3 Terms, definitions, symbols and abbreviated terms 8 3.1 Terms and definitions 8 3.2 Symbol
32、s and abbreviated terms 8 4 General . 10 4.1 Methods for measuring PMD . 10 4.2 Reference test method 13 4.3 Applicability 13 5 Apparatus 14 5.1 General . 14 5.2 Light source and polarizers . 14 5.3 Input optics . 14 5.4 Input positioner . 14 5.5 Cladding mode stripper . 14 5.6 High-order mode filte
33、r . 15 5.7 Output positioner 15 5.8 Output optics 15 5.9 Detector 15 5.10 Computer 15 6 Sampling and specimens . 15 6.1 General . 15 6.2 Specimen length . 16 6.3 Deployment. 16 6.3.1 General . 16 6.3.2 Uncabled fibre . 16 6.3.3 Optical fibre cable 16 7 Procedure 17 8 Calculation or interpretation of
34、 results . 17 9 Documentation 17 9.1 Information required for each measurement 17 9.2 Information to be available 17 10 Specification information . 18 Annex A (normative) Requirements specific to method A (FA) Fixed analyser measurement method 19 A.1 Apparatus . 19 A.1.1 Block diagrams 19 A.1.2 Ligh
35、t source . 19 A.1.3 Analyser 20 A.2 Procedure . 20 A.2.1 Wavelength range and increment . 20 A.2.2 Complete the scans . 20 BS EN 60793148:2017IEC 60793-1-48:2017 IEC 2017 3 A.3 Calculations 23 A.3.1 Approaches of calculating PMD . 23 A.3.2 Extrema counting . 23 A.3.3 Fourier transform . 23 A.3.4 Cos
36、ine Fourier analysis . 25 Annex B (normative) Requirements specific to method B (SPE) Stokes parameter evaluation method . 30 B.1 Apparatus . 30 B.1.1 Block diagram 30 B.1.2 Light source . 30 B.1.3 Polarimeter 31 B.2 Procedure . 31 B.3 Calculations 32 B.3.1 Principle 32 B.3.2 Jones matrix eigenanaly
37、sis (JME) 33 B.3.3 Poincar sphere analysis (PSA) . 34 B.3.4 State of polarization (SOP) 35 Annex C (normative) Requirements specific to method C (INTY) Interferometry method 36 C.1 Apparatus . 36 C.1.1 Block diagram 36 C.1.2 Light source . 39 C.1.3 Beam splitter . 39 C.1.4 Analyser 39 C.1.5 Interfer
38、ometer 39 C.1.6 Polarization scrambler . 39 C.1.7 Polarization beam splitter 40 C.2 Procedure . 40 C.2.1 Calibration . 40 C.2.2 Routine operation 40 C.3 Calculations 44 C.3.1 General . 44 C.3.2 TINTY calculations 44 C.3.3 GINTY calculations 45 Annex D (informative) Determination of RMS width from a
39、fringe envelope 47 D.1 Overview. 47 D.2 RMS calculation for TINTY 47 D.3 RMS calculation for GINTY . 49 Bibliography 51 Figure A.1 Block diagrams for method A 19 Figure A.2 Typical results from method A . 22 Figure A.3 PMD by Fourier analysis . 25 Figure A.4 Cross-correlation and autocorrelation fun
40、ctions 29 Figure B.1 Block diagram for method B 30 Figure B.2 Typical random mode coupling results from method B. 32 Figure B.3 Typical histogram of DGD values. . 33 Figure C.1 Schematic diagram for method C (generic implementation) . 36 BS EN 60793148:2017 4 IEC 60793-1-48:2017 IEC 2017 Figure C.2
41、Other schematic diagrams for method C . 38 Figure C.3 Fringe envelopes for negligible and random polarization mode coupling of TINTY-based measurement system 41 Figure C.4 Fringe envelopes for mixed, negligible and random polarization mode coupling of GINTY-based measurement system 43 Figure D.1 Par
42、ameters for interferogram analysis 47 Table A.1 Cosine transform calculations 28 BS EN 60793148:2017IEC 60793-1-48:2017 IEC 2017 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRES Part 1-48: Measurement methods and test procedures Polarization mode dispersion FOREWORD 1) The International
43、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 fie
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47、ation 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 can
48、not 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 publicatio
49、ns. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that t
