IEC_TR_62627-08-2016.pdf

IEC TR 62627-08 Edition 1.0 2016-01 TECHNICAL REPORT Fibre optic interconnecting devices and passive components Part 08:Study of optical power blocking measurement methods for adaptors with an optical power blocking shutter IEC T R 62627-08:2016-01(en)colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC,Geneva,Switzerland All rights reserved.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 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-1211 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 content 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 applica tion for consulting the entir e bibliogr aphical informa tion on IEC International Standar ds,Technical Specifica tions,Technical Reports and other documents.Av ailable for PC,Mac OS,Android Tablets and iPad.IEC publications search-www.iec.ch/searchpub The adv anced sear ch enables to find IEC publications by a var iety of cr iter ia(refer ence number,text,technica l committee,).It also gives infor ma tion on pr ojects,replaced and w ithdraw n publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to da te on all new IEC publications.Just Published details all new publica tions released.Av ailable online and also once a month by email.Electropedia-www.electropedia.org The w or lds leading online dictionary of electronic and electrical terms containing 20 000 terms and definitions in English and Fr ench,w ith equiv alent ter ms in 15 additional languages.Also k nown as the Inter national Electr otechnical Vocabulary(IEV)online.IEC Glossary-std.iec.ch/glossary 65 000 electrotechnical terminology entries in English and Fr ench extracted fr om the Terms and Definitions clause of IEC publica tions issued since 2002.Some entr ies hav e been collected from ear lier publications of IEC TC 37,77,86 and CISPR.IEC Customer Serv ice Centre-webstore.iec.ch/csc If you w ish to giv e us your feedback on this publication or need fur ther assistance,plea se contact the Customer Ser v ice Centre:csciec.ch.IEC TR 62627-08 Edition 1.0 2016-01 TECHNICAL REPORT Fibre optic interconnecting devices and passive components Part 08:Study of optical power blocking measurement methods for adaptors with an optical power blocking shutter INT ERNAT IONAL ELECT ROT ECHNICAL COMMISSION ICS 33.180.20 ISBN 978-2-8322-3119-7 Registered t rademark of the Internat ional Electrotechnica l Commission Warning!Mak e sure that you obtained this publication from an authorized distributor.colourinside 2 IEC TR 62627-08:2016 IEC 2016 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Terms and definitions.7 4 Background to the measurement method of blocking characteristics for adaptors with an optical power blocking shutter.7 4.1 Laser safety requirement for optical fibre communication systems.7 4.2 Required performance of the power blocking shutter.8 4.3 Standard measurement conditions used to determine laser safety for optical fibre communication systems.8 5 Measurement methods used in this Technical Report.8 5.1 Background.8 5.2 Test.8 5.2.1 Measurement set-up.8 5.2.2 Study of dynamic range.9 5.2.3 Light source and optical detector.9 5.2.4 Measurement environment.10 5.3 Measurement of the maximum emitted optical power.10 5.4 Measuring system dynamic range.10 5.5 Measuring the level of optical power blocking.10 6 Demonstration of measurement.11 6.1 Common measurement conditions.11 6.2 Measurement set-up.11 6.2.1 Method 1.11 6.2.2 Method 2.13 6.3 Dynamic range.14 6.3.1 Method 1.14 6.3.2 Method 2.15 6.3.3 Samples measured.15 6.4 Measurement results.15 6.5 Study of the factors affecting measurement uncertainty.17 7 Summary.18 (informative)Observation of emitted light using a visible light source.19 Annex A(informative)Detailed measured levels of blocking characteristics(Measured Annex Bvalues of light quantity shielded by adaptors with an optical power blocking shutter).20 Bibliography.24 Figure 1 Example of measurement set-up for Method 1.9 Figure 2 Example of measurement set-up for Method 2.9 Figure 3 Measurement set-up,Method 1.13 Figure 4 Measurement set-up,Meth