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9、 you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC/TS 62538 Edition 1.0 2008-10 TECHNICAL SPECIFICATIONCategorization of optical devices INTER
10、NATIONAL ELECTROTECHNICAL COMMISSION M ICS 33.180.01 PRICE CODE ISBN 2-8318-1004-7 Registered trademark of the International Electrotechnical Commission 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 re
11、lated definitions 7 3 Categorization procedure of optical devices .7 Annex A (informative) Categorization criteria .9 Annex 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 TS
12、62538 IEC:2008(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ CATEGORIZATION OF OPTICAL DEVICES FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object
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25、er they can be transformed into International Standards. IEC/TS 62538, which is a technical specification, has been prepared by IEC technical committee 86: Fibre optics. 4 TS 62538 IEC:2008(E) The text of this technical specification is based on the following documents: Enquiry draft Report on votin
26、g 86/282/DTS 86/308/RVC Full information on the voting for the approval of this 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
27、of this publication will remain unchanged until the maintenance result date indicated 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 At this date, the publication will be transformed into an International standard, reconfirmed, withdrawn, replaced
28、by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. TS 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, w
29、ith the aim to allocate the various optical devices among the appropriate working groups. It contains fundamental definitions of broad validity and the procedure to categorize any optical devices. 6 TS 62538 IEC:2008(E) CATEGORIZATION OF OPTICAL DEVICES 1 Scope IEC/TS 62438, which is a technical spe
30、cification, applies to optical devices (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.
31、It also gives a general procedure to identify 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 dynam
32、ic devices,” “optical active devices” and “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 c
33、riteria leading to the definitions of 2.1 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
34、-1 do not describe an optical device (according 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
35、 dynamic device optical device designed 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 characte
36、ristics may include optical paths, optical 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 th
37、an the signal time characteristics and 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 elect
38、ronic signal to a corresponding optical 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. TS 62538 IEC:2008(E) 7 2.1.3 o
39、ptical passive device 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 purpo
40、ses only. 2.2 Other 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
41、, grating chips and 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 sp
42、litters, couplers, attenuators, 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)
43、by the user NOTE 1 An 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
44、assembly 2.2.5 optical 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 ena
45、bled to re-arrange inner 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 C
46、ategorization procedure 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: 8 TS 62538 IEC:2008(E) 1) if the optical device to be categorized mainly exhibits dynamic functionality (
47、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
48、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. TS 62538 IEC:2008(E) 9 Annex A (informative) Categorization criteria The following guidance criteria were established for the definitio
49、ns 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 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 de
