1、 IEC 61202-1 Edition 4.0 2016-12 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components Fibre optic isolators Part 1: Generic specification IEC 61202-1:2016-12(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva, Switzerland All rights rese
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11、rt 1: Generic specification INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.180.20 ISBN 978-2-8322-3681-9 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2 IEC 61202-1:2016 IEC
12、2016 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references 6 3 Terms and definitions 7 3.1 Basic terms and definitions . 7 3.2 Component terms and definitions 7 3.3 Performance parameter terms and definitions . 8 4 Requirements 10 4.1 Classification 10 4.1.1 General . 10 4.1.2 Type 10 4.1.3 Style 1
13、1 4.1.4 Variant . 11 4.1.5 Normative reference extensions. 11 4.2 Documentation 12 4.2.1 Symbols 12 4.2.2 Specification system 12 4.2.3 Drawings . 13 4.2.4 Tests and measurements . 13 4.2.5 Test data sheets 14 4.2.6 Instructions for use 14 4.3 Standardization system . 14 4.3.1 Interface standards 14
14、 4.3.2 Performance standards 14 4.3.3 Reliability standards 14 4.3.4 Interlinking . 15 4.4 Design and construction 16 4.4.1 Materials . 16 4.4.2 Workmanship . 16 4.5 Performance requirements 16 4.6 Identification and marking . 17 4.6.1 General . 17 4.6.2 Variant identification number . 17 4.6.3 Comp
15、onent marking . 17 4.6.4 Package marking . 17 4.7 Packaging . 18 4.8 Storage conditions 18 4.9 Safety . 18 (informative) Example of technology of bulk isolator based on magneto-optic Annex A effect . 19 A.1 General . 19 A.2 Faraday rotator . 19 A.3 Analyser . 19 A.4 Birefringent crystal 19 IEC 61202
16、1:2016 IEC 2016 3 (informative) Example of technology of optical waveguide isolator . 22 Annex B B.1 General . 22 B.2 TE mode . 22 B.3 TM mode 22 Bibliography 24 Figure 1 Configuration A Device containing integral fibre optic pigtails without connector 11 Figure 2 Configuration B Device containing
17、integral fibre optic pigtails, with a connector on each pigtail 11 Figure 3 Configuration C Device containing connectors as an integral part of the device housing 11 Figure 4 Configuration D Device containing some combination of the interfacing features of the preceding configurations . 11 Figure 5
18、Standards currently under preparation . 16 Figure A.1 Polarization dependent optical isolator 20 Figure A.2 Polarization independent optical isolator . 21 Figure B.1 Mode conversion type of the optical waveguide isolator 22 Figure B.2 Phase shifter type of the optical waveguide isolator 23 Figure B.
19、3 TE mode and TM mode for optical waveguide isolator 23 Table 1 Two-level IEC specification structure . 12 Table 2 Standards interlink matrix 16 4 IEC 61202-1:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS FIBRE OPTIC ISOLATORS Pa
20、rt 1: Generic specification FOREWORD 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 conce
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29、ses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Atten
30、tion 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 held responsible for identifying any or all such patent rights. International Standard IEC 61202-1 has been prepared by subcommittee 86B: Fibre optic interconnecti
31、ng devices and passive components, of IEC technical committee 86: Fibre optics. This fourth edition cancels and replaces the third edition published in 2009. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a
32、) the terms and definitions were reconsidered; b) quality assessment level was deleted from classification; c) the clause numbers of Annexes A and B have been rearranged. IEC 61202-1:2016 IEC 2016 5 The text of this International Standard is based on the following documents: CDV Report on voting 86B
33、/3989A/CDV 86B/4033RVC Full information 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 61202 series, publ
34、ished under the general title Fibre optic interconnecting devices and passive components Fibre optic isolators, can be found on the IEC website. 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 tha
35、t it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 6 IEC 61202-1:2016 IEC 2016 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS FIBRE OPTIC ISOLATORS Part 1: Generic speci
36、fication 1 Scope This part of IEC 61202 applies to isolators used in the field of fibre optics, all exhibiting the following features: they are non-reciprocal optical devices, in which each port is either an optical fibre or fibre optic connector; they are passive devices containing no opto-electron
37、ic or other transducing elements; they have two optical ports for directionally transmitting optical power. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only
38、 the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60027 (all parts), Letter symbols to be used in electrical technology IEC 60050-731, International Electrotechnical Vocabulary Chapter 731: Optical fibre communic
39、ation IEC 60617 (all parts), Graphical symbols for diagrams (available at http:/std.iec.ch/iec60617) IEC 60695 (all parts), Fire hazard testing IEC 60825-1, Safety of laser products Part 1: Equipment classification and requirements IEC 61300 (all parts), Fibre optic interconnecting devices and passi
40、ve components Basic test and measurement procedures IEC TS 62627-09, Fibre optic interconnecting devices and passive components Vocabulary for passive optical devices ISO 129-1, Technical drawings Indication of dimensions and tolerances Part 1: General principles ISO 286-1, Geometrical product speci
41、fication (GPS) ISO code system for tolerances on linear sizes Part 1: Bases of tolerances, deviations and fits ISO 1101, Geometrical product specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-out ISO 8601, Data elements and interchange formats Information
42、interchange Representation of dates and times IEC 61202-1:2016 IEC 2016 7 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-731, IEC TS 62627-09 and the following apply. ISO and IEC maintain terminological databases for use in standardization at
43、the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1 Basic terms and definitions 3.1.1 port optical fibre or fibre optic connector attached to a passive component for the entry and/or exit of the opti
44、cal power 3.1.2 input port port for the entry of optical power Note 1 to entry: An isolator is a directional device. The input port should be clearly marked. 3.1.3 output port port for the exit of optical power Note 1 to entry: An isolator is a directional device. The output port should be clearly m
45、arked. 3.1.4 backward direction operational direction in which the power of the optical source launches into the output port of an isolator Note 1 to entry: This is the direction of optical power isolation. 3.1.5 forward direction operational direction in which the power of the optical source launch
46、es into the input port of an isolator Note 1 to entry: This is the intentional direction of optical power transmission. 3.2 Component terms and definitions 3.2.1 fibre optic isolator non-reciprocal optical device intended to suppress backward reflections along an optical fibre transmission line whil
47、e having minimum insertion loss in the forward direction Note 1 to entry: Fibre optic isolators are commonly used to avoid reflections back into laser diodes and optical amplifiers, which can make the laser and amplifiers oscillations unstable, and cause noise in the fibre optic transmission system.
48、 3.2.2 bulk isolator based on magneto-optic effect type of isolator with discrete components including a suitable magneto-optic crystal (ferro- magnetic crystal or paramagnetic glass, diamagnetic glass, etc.), of which the fundamental principle is based on magneto-optic effect 8 IEC 61202-1:2016 IEC
49、 2016 Note 1 to entry: The technology of a bulk isolator based on magneto-optic effect is described in Annex A. 3.2.3 in-line isolator type of isolator with optical fibre for the entry input and output of the light 3.2.4 optical waveguide isolator type of isolator with planer epitaxial magneto-optic crystal layers on a suitable substrate Note 1 to entry: The technology of an optical waveguide isolator is described in Annex B. 3.2.5 polari
