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    IEC 62343-5-1-2014 Dynamic modules - Part 5-1 Test methods - Dynamic gain tilt equalizer - Gain tilt settling time measurement《动态模块 第5-1部分 试验方法 动态增益倾斜均衡器 增益倾斜稳定时间测量》.pdf

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    IEC 62343-5-1-2014 Dynamic modules - Part 5-1 Test methods - Dynamic gain tilt equalizer - Gain tilt settling time measurement《动态模块 第5-1部分 试验方法 动态增益倾斜均衡器 增益倾斜稳定时间测量》.pdf

    1、 IEC 62343-5-1 Edition 2.0 2014-11 INTERNATIONAL STANDARD Dynamic modules Part 5-1 Test methods Dynamic gain tilt equalizer Gain tilt settling time measurement IEC 62343-5-1:2014-11(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 IEC, Geneva, Switzerland All rights reserved.

    2、 Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you

    3、have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1

    4、211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical conte

    5、nt of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on I

    6、EC International Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (reference number, text, techn

    7、ical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and also once a month by email. Electro

    8、pedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 14 additional languages. Also known as the International Electrotechnical Vocabulary (IEV) online. IE

    9、C Glossary - std.iec.ch/glossary More than 55 000 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

    10、Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC 62343-5-1 Edition 2.0 2014-11 INTERNATIONAL STANDARD Dynamic modules Part 5-1 Test methods Dynamic gain tilt equalizer

    11、Gain tilt settling time measurement INTERNATIONAL ELECTROTECHNICAL COMMISSION R ICS 33.180.01; 33.180.99 PRICE CODE ISBN 978-2-8322-1959-1 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colou

    12、r inside 2 IEC 62343-5-1:2014 IEC 2014 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references 6 3 Terms, definitions, abbreviations and response waveforms 6 3.1 Terms and definitions 6 3.2 Abbreviations 7 3.3 Response waveforms 7 4 General information . 8 5 Apparatus 9 5.1 Light source 9 5.2 Pulse g

    13、enerator 9 5.3 O/E converter . 9 5.4 Temperature and humidity chamber 10 5.5 Oscilloscope . 10 5.6 Temporary joints . 10 5.7 Control system 10 5.8 Measurement setup 10 6 Procedure 11 6.1 Direct control type . 11 6.1.1 Setup . 11 6.1.2 Preparation 11 6.1.3 Wavelength setting 12 6.1.4 Pulse generator

    14、setting 12 6.1.5 Applying the driving pulse 12 6.1.6 Monitoring and recording the output signal from DGTE under test (DUT) . 12 6.1.7 Calculation of the gain tilt settling time 12 6.2 Digital control type 12 6.2.1 Setup . 12 6.2.2 Preparation 12 6.2.3 Wavelength setting 12 6.2.4 Sending command . 12

    15、 6.2.5 Monitoring and recording the command complete flag 13 6.2.6 Calculation of the gain tilt settling time 13 6.3 Analogue control type . 13 6.3.1 Setup . 13 6.3.2 Preparation 13 6.3.3 Wavelength setting 13 6.3.4 Applying the control signal . 13 6.3.5 Monitoring and recording the command complete

    16、 flag 13 6.3.6 Calculation of the gain tilt settling time 13 7 Details to be specified . 13 7.1 Apparatus . 13 7.1.1 Light source . 13 7.1.2 Pulse generator . 14 7.1.3 O/E converter 14 7.1.4 Control system 14 IEC 62343-5-1:2014 IEC 2014 3 7.2 Measurement conditions . 14 Annex A (informative) Converg

    17、ence criterion . 15 Annex B (informative) Measurement examples. 16 Annex C (informative) Gain tilt settling time for specific DGTEs . 17 Annex D (informative) Necessity for the correction for temperature dependency 18 Figure 1 Response waveforms for direct control DGTEs 7 Figure 2 Response waveforms

    18、 for digital control DGTEs 8 Figure 3 Response waveforms for analogue control DGTEs . 8 Figure 4 Measurement setup for direct control . 10 Figure 5 Measurement setup for digital control . 11 Figure 6 Measurement setup for analogue control 11 Figure B.1 Where insertion loss change is sufficient 16 Fi

    19、gure B.2 Where insertion loss change is small 16 Table 1 Categorization of DGTE by the control method . 9 4 IEC 62343-5-1:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DYNAMIC MODULES Part 5-1 Test methods Dynamic gain tilt equalizer Gain tilt settling time measurement FOREWORD 1) The In

    20、ternational 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 el

    21、ectronic 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 technical commit

    22、tees; 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 Organization for

    23、 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 technical committee

    24、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 Publications is accu

    25、rate, 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 national and region

    26、al publications. 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 s

    27、ome 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 they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents

    28、 including individual experts and members of its technical committees and IEC National Committees 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

    29、 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) Attention is drawn to the possibility that some of

    30、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 62343-5-1 has been prepared by subcommittee 86C: Fibre optic systems and active devices, of IEC technical committee 86

    31、: Fibre optics. This second edition cancels and replaces the first edition published in 2009. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) change in the title b) changes in performance parameter names.

    32、 IEC 62343-5-1:2014 IEC 2014 5 The text of this standard is based on the following documents: CDV Report on voting 86C/1249/CDV 86C/1277/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been d

    33、rafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 62343 series, published under the general title Dynamic Modules, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date in

    34、dicated 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 reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The col

    35、our inside logo on the cover page of this publication indicates that 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 62343-5-1:2014 IEC 2014 DYNAMIC MODULES Part 5-1 Test met

    36、hods Dynamic gain tilt equalizer Gain tilt settling time measurement 1 Scope This part of IEC 62343 contains the measurement method of gain tilt settling time for a dynamic gain tilt equalizer (DGTE) to change its gain tilt from an arbitrary initial value to a desired target value. 2 Normative refer

    37、ences The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. I

    38、EC 62343, Dynamic modules General and guidance IEC 62343-1-3, Dynamic modules Part 1-3: Performance standards Dynamic gain tilt equalizer (non-connectorized) 3 Terms, definitions, abbreviations and response waveforms 3.1 Terms and definitions For the purposes of this document, the terms and definiti

    39、ons given in IEC 62343 and IEC 62343-1-3 and the following apply. 3.1.1 T cconvergence time time to converge from the first hit at the target Y % to the stay within the deviation Y % in the optical power from the output port of DGTE at pre-determined wavelength 3.1.2 T llatency time time between the

    40、 application of control signal and the change in output optical power by X % of the initial power of DGTE at pre-determined wavelength 3.1.3 T pprocessing time time between the application of control command and the change in output optical power by X % of the initial power of DGTE at pre-determined

    41、 wavelength 3.1.4 gain tilt settling time (T lor T p ) + T r+ T cIEC 62343-5-1:2014 IEC 2014 7 3.1.5 T rrise time time to change from the initial X % to the target Y % in the optical power from the output port of DGTE at pre-determined wavelength 3.1.6 T ssettling time time to be suppressed from the

    42、 first hit at the target Y % to the final stay at the target within a required resolution of the optical power from the output port of DGTE at pre-determined wavelength 3.2 Abbreviations CPU central processing unit DGTE dynamic gain tilt equalizer DUT device under test LCD liquid crystal display O/E

    43、 optical-to-electrical PDL polarization dependent loss TLS tuneable laser source WDM wavelength division multiplexing 3.3 Response waveforms The definitions and symbols defined in 3.1 are shown in Figure 1, Figure 2 and Figure 3. Figure 1 Response waveforms for direct control DGTEs T l 100 % 100 + X

    44、 % 100 % 100 - Y % T r T s Control signal Time P o P u 100 + Y % T c Parameters T l : Latency time T r : Rise time T c : Convergence time T s : Settling time P o : Overshoot P u : Undershoot Suppressed within required resolution Gain tilt settling time: T l+T r+T c 100 - X % Optical power (W) Target

    45、 power Initial power IEC 8 IEC 62343-5-1:2014 IEC 2014 Figure 2 Response waveforms for digital control DGTEs Figure 3 Response waveforms for analogue control DGTEs 4 General information The DGTE is categorized into three control methods as shown in Table 1. The direct control type is driven directly

    46、 by voltage or current; the digital control type is operated by digital control system with digital signals; and the analogue control type is operated by analogue signals. The definition and the measurement method of gain tilt settling time for DGTE are different for the three control types. Table 1

    47、 also shows the configuration of operating systems and the correction for temperature dependency for three control types of DGTE. When the gain tilt settling time for the DGTE has temperature dependency, users may need to calibrate the temperature effect. The bottom row in Table 1 indicates the typi

    48、cal methods of the correction for temperature dependency (refer to Annex D). T p 100 % 100 + X % 100 % 100 - Y % T r T s Command Time P o P u 100 + Y % T c Parameters T p : Processing time T r : Rise time T c : Convergence time T s : Settling time P o : Overshoot P u : Undershoot Suppressed within r

    49、equired resolution Gain tilt settling time: T p+T r+T c 100 - X % Optical power (W) Target power Initial power IEC T l 100 % 100 + X % 100 % 100 - Y % T r T s Control signal Time P o P u 100 + Y % T c Parameters T l: Latency time T r : Rise time T c : Convergence time T s : Settling time P o : Overshoot P u : Undershoot Suppressed within required resolution Gain tilt settling time: T l+T r+T c 100 - X % Optical power (W) Target power Initial power IEC


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