1、 IEC 60793-2-70 Edition 1.0 2017-02 INTERNATIONAL STANDARD Optical fibres Part 2-70: Product specifications Sectional specification for polarization- maintaining fibres IEC 60793-2-70:2017-02(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All rights
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9、C Glossary - std.iec.ch/glossary 65 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Customer Service Ce
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11、r polarization- maintaining fibres INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.180.10 ISBN 978-2-8322-3866-0 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2 IEC 60793-2-70
12、2017 IEC 2017 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references 6 3 Terms and definitions 7 4 Specifications 7 4.1 General . 7 4.2 Dimensional requirements . 7 4.3 Mechanical requirement 8 4.4 Transmission requirements . 8 4.5 Environmental requirements . 9 Annex A (normative) Family specifica
13、tion for category D1 polarization-maintaining fibres 10 General . 10 A.1Dimensional requirements . 10 A.2Mechanical requirement 10 A.3Transmission requirements . 10 A.4Environmental requirements . 11 A.5 Annex B (normative) Family specification for category D2 polarization-maintaining fibres 12 Gene
14、ral . 12 B.1Dimensional requirements . 12 B.2Mechanical requirement 12 B.3Transmission requirements . 12 B.4Environmental requirements . 13 B.5 Annex C (normative) Family specification for category D3 polarization- maintaining fibres 14 General . 14 C.1Dimensional requirements . 14 C.2Mechanical req
15、uirement 14 C.3Transmission requirements . 14 C.4Environmental requirements . 15 C.5 Annex D (normative) Mode field diameter (MFD) measurement of PM fibre 16 Annex E (informative) Cut-off wavelength of PM fibre and SM fibre 17 Bibliography 19 Figure E.1 Cut-off wavelength profiles of PM fibre and SM
16、 fibre 17 Figure E.2 Cut-off wavelength profile of PM fibre with extra bending . 18 Table 1 Categories of glass core/glass clad polarization-maintaining fibres 6 Table 2 Dimensional attributes and measurement methods 8 Table 3 Mechanical attribute and test method 8 Table 4 Transmission attributes an
17、d measurement methods 9 Table 5 Environmental exposure tests . 9 Table 6 Attributes measured 9 Table A.1 Dimensional requirements specific to D1 fibres 10 IEC 60793-2-70:2017 IEC 2017 3 Table A.2 Mechanical requirement specific to D1 fibres . 10 Table A.3 Transmission requirements specific to D1 fib
18、res 11 Table A.4 Environmental requirements specific to D1 fibres . 11 Table B.1 Dimensional requirements specific to D2 fibres 12 Table B.2 Mechanical requirement specific to D2 fibres . 12 Table B.3 Transmission requirements specific to D2 fibres 13 Table B.4 Environmental requirements specific to
19、 D2 fibres . 13 Table C.1 Dimensional requirements specific to D3 fibres 14 Table C.2 Mechanical requirement specific to D3 fibres . 14 Table C.3 Transmission requirements specific to D3 fibres 15 Table C.4 Environmental requirements specific to D3 fibres . 15 4 IEC 60793-2-70:2017 IEC 2017 INTERNAT
20、IONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRES Part 2-70: Product specifications Sectional specification for polarization-maintaining fibres FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical co
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31、ch patent rights. International Standard IEC 60793-2-70 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics. The text of this International Standard is based on the following documents: CDV Report on voting 86A/1741/CDV 86A/1780/RVC Full information
32、on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 60793 series, published under the general title Optical fi
33、bres, can be found on the IEC website. IEC 60793-2-70:2017 IEC 2017 5 The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the
34、 document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for
35、the correct understanding of its contents. Users should therefore print this document using a colour printer. 6 IEC 60793-2-70:2017 IEC 2017 OPTICAL FIBRES Part 2-70: Product specifications Sectional specification for polarization-maintaining fibres 1 Scope This part of IEC 60793 is applicable to op
36、tical fibre types D1, D2, D3, as described in Table 1. These fibres are polarization-maintaining fibre types, and are used or can be incorporated in information transmission equipment and optical fibre cable. These fibres are available for use in optical transport networks. Three types of requiremen
37、ts apply to these fibres: general requirements defined in IEC 60793-2; specific requirements common to the category D polarization-maintaining fibres covered in this document and which are given in Clause 4; particular requirements applicable to individual fibre types or specific applications, which
38、 are defined in Annexes A to C. Table 1 Categories of glass core/glass clad polarization-maintaining fibres Category Type Description D1 Polarization-maintaining fibre suitable for use at 980 nm This category of polarization-maintaining fibre is optimised for polarization-maintaining ability in the
39、980 nm region. This fibre is used for erbium-doped fibre amplifier. D2 Polarization-maintaining fibre suitable for use at 1 310 nm This category of polarization-maintaining fibre is optimised for polarization-maintaining ability and connection property of category B fibres in the 1 310 nm region. D3
40、 Polarization-maintaining fibre suitable for use at 1 550 nm This category of polarization-maintaining fibre is optimised for polarization-maintaining ability and connection property of category B fibres in the 1 550 nm region. 2 Normative references The following documents are referred to in the te
41、xt 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. IEC 60793-1-20:2014, Optical fibres Part 1-20:
42、 Measurement methods and test procedures Fibre geometry IEC 60793-1-21, Optical fibres Part 1-21: Measurement methods and test procedures Coating geometry IEC 60793-1-22, Optical fibres Part 1-22: Measurement methods and test procedures Length measurement IEC 60793-1-30, Optical fibres Part 1-30: Me
43、asurement methods and test procedures Fibre proof test IEC 60793-1-40, Optical fibres Part 1-40: Measurement methods and test procedures Attenuation IEC 60793-2-70:2017 IEC 2017 7 IEC 60793-1-44:2011, Optical fibres Part 1-44: Measurement methods and test procedures Cut-off wavelength IEC 60793-1-45
44、2001, Optical fibres Part 1-45: Measurement methods and test procedures Mode field diameter IEC 60793-1-46, Optical fibres Part 1-46: Measurement methods and test procedures Monitoring of changes in optical transmittance IEC 60793-1-52, Optical fibres Part 1-52: Measurement methods and test procedu
45、res Change of temperature tests IEC 60793-1-60 1 , Optical fibres Part 1-60: Measurement methods and test procedures Beat length IEC 60793-1-61 2 , Optical fibres Part 1-61: Measurement methods and test procedures Polarization crosstalk IEC 60793-2, Optical fibres Part 2: Product specifications Gene
46、ral 3 Terms and definitions No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.o
47、rg/obp 4 Specifications 4.1 General The fibre shall consist of a glass core and glass cladding in accordance with the construction of optical fibre category D polarization-maintaining fibre as given in IEC 60793-2. The term “glass“ usually refers to material consisting of non-metallic oxides. 4.2 Di
48、mensional requirements Relevant dimensional attributes and measurement methods are given in Table 2. _ 1Under preparation. Stage at the time of publication: IEC 60793-1-60:2017. 2Under preparation. Stage at the time of publication: IEC 60793-1-61:2017. 8 IEC 60793-2-70:2017 IEC 2017 Table 2 Dimensio
49、nal attributes and measurement methods Attributes Measurement methods Cladding diameter aIEC 60793-1-20 Cladding non-circularity aIEC 60793-1-20 Core-cladding concentricity error aIEC 60793-1-20 Primary coating diameter IEC 60793-1-21 Primary coating-cladding concentricity error IEC 60793-1-21 Fibre length IEC 60793-1-22 aThe dimensional characteristics of polarization-maintaining (P
