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 1Categorization of opticaldevicesDD IEC/TS 62538:2009NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPY
2、RIGHT LANational forewordThis Draft for Development is the UK implementation of IEC/TS 62538:2008.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development series of publications and is ofa provisional nature. It should be applied on this provisiona
3、l basis, so thatinformation and experience of its practical application can be obtained.Comments arising from the use of this Draft for Development are requestedso that UK experience can be reported to the international organizationresponsible for its conversion to an international standard. A revie
4、w of thispublication will be initiated not later than three years after its publication by the international organization so that a decision can be taken on its status. Notification of the start of the review period will be made in anannouncement in the appropriate issue of Update Standards.Accordin
5、g to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion intoan international Standard, to extend the life of the Technical Specification orto withdraw it. Comments should be sent to the Secretary of the responsibleBSI Tec
6、hnical Committee at British Standards House, 389 Chiswick High Road,London W4 4ALThe UK participation in its preparation was entrusted to Technical CommitteeGEL/86, Fibre optics.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not
7、 purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580 59511 0ICS 33.180.01Amendments issued since publicationAmd. No. Date Text affectedDD IEC/TS 62538:2009This Draft for Development was published under the authority
8、of the Standards Policy and Strategy Committee on 31 January 2009 . IEC/TS 62538Edition 1.0 2008-10TECHNICAL SPECIFICATIONCategorization of optical devices INTERNATIONAL ELECTROTECHNICAL COMMISSION MICS 33.180.01 PRICE CODEISBN 2-8318-1004-7 Registered trademark of the International Electrotechnical
9、 Commission DD IEC/TS 62538:2009 2 TS 62538 IEC:2008(E) CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Terms and definitions .6 2.1 Categorization of main definitions6 2.2 Other related definitions 7 3 Categorization procedure of optical devices .7 Annex A (informative) Categorization criteria .9 An
10、nex B (informative) Allocation of optical devices by categories and working groups .10 Bibliography12 Table A.1 Allocation of optical devices by categories and working groups10 DD IEC/TS 62538:2009TS 62538 IEC:2008(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ CATEGORIZATION OF OPTICAL DEVICES FO
11、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
12、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
13、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
14、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
15、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
16、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
17、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
18、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
19、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
20、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
21、d responsible for identifying any or all such patent rights. The main task of IEC technical committees is to prepare International Standards. In exceptional circumstances, a technical committee may propose the publication of a technical specification when The required support cannot be obtained for
22、the publication of an International Standard, despite repeated efforts, or The subject is still under technical development or where, for any other reason, there is the future but no immediate possibility of an agreement on an International Standard.Technical specifications are subject to review wit
23、hin three years of publication to decide whether they can be transformed into International Standards. Technical specifications are subject to review within three years of publication to decide whether they can be transformed into International Standards. IEC/TS 62538, which is a technical specifica
24、tion, has been prepared by IEC technical committee 86: Fibre optics. DD IEC/TS 62538:2009 4 TS 62538 IEC:2008(E) The text of this technical specification is based on the following documents: Enquiry draft Report on voting 86/282/DTS 86/308/RVC Full information on the voting for the approval of this
25、technical specification can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indi
26、cated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be transformed into an International standard, reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be
27、 issued at a later date. DD IEC/TS 62538:2009TS 62538 IEC:2008(E) 5 INTRODUCTION IEC/TS 62538, which is a technical specification, is based on the conclusions of the coordinating group on categorization, approved by TC86 in 2005 and 2006, with the aim to allocate the various optical devices among th
28、e appropriate working groups. It contains fundamental definitions of broad validity and the procedure to categorize any optical devices. DD IEC/TS 62538:2009 6 TS 62538 IEC:2008(E) CATEGORIZATION OF OPTICAL DEVICES 1 Scope IEC/TS 62438, which is a technical specification, applies to optical devices
29、(i.e. elements, components, assemblies, sub-assemblies or modules) of interest to TC86 and its subcommittee. It provides the definitions of the three main categories of optical devices (i.e. dynamic, active and passive) together with other related definitions. It also gives a general procedure to id
30、entify the category of any optical devices. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. NOTE 1 The definitions given in 2.1 are determined for the three main categories of optical devices: “optical dynamic devices,” “optical active devices” a
31、nd “optical passive devices.” Other supporting definitions are given in 2.2 and concern the term “optical device” and the related terms “optical element,” “optical component,” “optical assembly,” “optical sub-assembly” and “optical module.” The categorization criteria leading to the definitions of 2
32、.1 are reported in Annex A. NOTE 2 Some definitions reported in IEC 61931, analogous to those given in this clause, are superseded by the present technical specification. NOTE 3 The terms optical (or fibre optic) “system” and “subsystem” as defined in IEC 61281-1 do not describe an optical device (a
33、ccording to the definitions given in this clause) and are outside the scope of this technical specification. The use of these two terms to indicate optical assemblies, sub-assemblies or modules is deprecated. 2.1 Categorization of main definitions 2.1.1 optical dynamic device optical device designed
34、 to monitor and control dynamically some characteristics of one or more optical signals, by means of suitable electronic controls, in order to improve or to maintain definite performances of the system in which it is intended to be inserted NOTE 1 Said characteristics may include optical paths, opti
35、cal intensities, spectrum characteristics, polarization states, dispersion, etc. NOTE 2 Optical dynamic devices may comprise optical active and optical passive elements or components. NOTE 3 The control/response time of optical dynamic devices is much larger than the signal time characteristics and
36、typically may range from a few microseconds to tens of seconds. 2.1.2 optical active device optical device, other than an optical dynamic device, exhibiting one or more of the following functions: generation or detection of optical power; conversion of an electronic signal to a corresponding optical
37、 one or vice versa; optical amplification or optical regeneration (2R or 3R) of an optical signal; direct conversion of the optical frequency of an optical signal. NOTE Optical active devices may comprise optical passive elements. DD IEC/TS 62538:2009TS 62538 IEC:2008(E) 7 2.1.3 optical passive devi
38、ce optical device, other than an optical dynamic device or an optical active device, which does not require external power for its operation, unless to control the stability of its own characteristics NOTE Optical passive devices may comprise optical detectors for monitoring purposes only. 2.2 Other
39、 related definitions 2.2.1 optical element unpackaged or partially packaged optical basic unit, typically non repairable and non re-workable (at least by users) NOTE Examples of optical elements include laser chips or laser diodes, photodiodes, lenses, prisms, optical collimators, grating chips and
40、filter chips. 2.2.2 optical component packaged unit comprising at least one optical element, typically non repairable and non re-workable (at least by users), suitably pigtailed or connectorized NOTE Examples of optical components include packaged lasers, photodiodes, optical splitters, couplers, at
41、tenuators, isolators, MEMSs and modulators. 2.2.3 optical assembly unpackaged integration of optical components and/or elements, accomplishing defined functionality, typically settable, repairable, re-workable and re-arrangeable (possibly also with addition of other components) by the user NOTE 1 An
42、 optical assembly may comprise electronic components. NOTE 2 An optical assembly may usually appear as a printed wiring board with optical components/elements. 2.2.4 optical sub-assembly part of an optical assembly, incomplete to fully accomplish the target functionality of the assembly 2.2.5 optica
43、l module packaged integration of optical components and/or elements, accomplishing defined functionality, typically repairable and re-workable NOTE 1 An optical module may comprise electronic components. NOTE 2 An optical module is to be used as it is; users are not normally enabled to re-arrange in
44、ner components or add other components inside. 2.2.6 optical device generic optical unit, either an optical element, an optical component, an optical assembly, an optical sub-assembly or an optical module. NOTE This term may have more specific meanings in different contexts. 3 Categorization procedu
45、re of optical devices The categorization definitions given in 2.1 allow the following 3-step procedure to be pursued in order to identify the category of any optical device: DD IEC/TS 62538:2009 8 TS 62538 IEC:2008(E) 1) if the optical device to be categorized mainly exhibits dynamic functionality (
46、as described in 2.1.1), it shall be regarded as an optical dynamic device; 2) otherwise, if it mainly exhibits an active functionality (as described in 2.1.2, with the exception in the note to 2.1.3), it shall be regarded as an optical active device; 3) otherwise, it shall be regarded as an optical
47、passive device. NOTE Allocation of optical devices in the three categories and in the various working groups of TC86 and its subcommittees is considered in Annex B. DD IEC/TS 62538:2009TS 62538 IEC:2008(E) 9 Annex A (informative) Categorization criteria The following guidance criteria were establish
48、ed for the definitions of optical dynamic, active and passive devices: a) Three groups of devices only, namely dynamic, active and passive, are to be identified. b) These three groups should be ranked in the following order: 1. Dynamic, 2. Active, 3. Passive (that is, all devices exhibiting dynamic
49、characteristics are dynamic; among the other ones, all those exhibiting active characteristics are active; the remaining ones are passive). c) As an exception to the previous criterion, passive devices may contain photodiodes (which per se are active) for monitoring purposes, continuing to be regarded as passive. d) Dynamic devices shall be mainly characterized by the possibility to change some of their characteristics with time, finalized to keep or improve defined performances of the system
