1、 IEC TR 61292-4 Edition 3.0 2014-10 TECHNICAL REPORT Optical amplifiers Part 4:Maximum permissible optical power for the damage-free and safe use of optical amplifiers,including Raman amplifiers IEC TR 61292-4 61292-4:2014-10(en)colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters
2、(Scientific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be
3、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 obta
4、ining 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 Interna
5、tional 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 s
6、ure 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 IEC International Standards,Technical Specifications,Technical Reports and other do
7、cuments.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by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IE
8、C 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.Electropedia-www.electropedia.org The worlds leading online dictionary of electronic and electrical terms co
9、ntaining 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.IEC Glossary-std.iec.ch/glossary More than 55 000 electrotechnical terminology entries in English and French e
10、xtracted 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 Service Centre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assist
11、ance,please contact the Customer Service Centre:csciec.ch.Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC TR 61292-4 Edition 3.0 2014-10 TECHNICA
12、L REPORT Optical amplifiers Part 4:Maximum permissible optical power for the damage-free and safe use of optical amplifiers,including Raman amplifiers INTERNATIONAL ELECTROTECHNICAL COMMISSION V ICS 33.160.10 33.180.30 PRICE CODE ISBN 978-2-8322-1907-2 Registered trademark of the International Elect
13、rotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontro
14、lled when printed.2 IEC TR 61292-4:2014 IEC 2014 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope and object.7 2 Normative references.7 3 Abbreviated terms.8 4 Maximum transmissible optical power to keep fibres damage-free.8 4.1 General.8 4.2 Fibre fuse and its propagation.9 4.3 Loss-induced heating at co
15、nnectors or splices.10 4.4 Connector end-face damage induced by dust/contamination.11 4.5 Fibre-coat burn/melt induced by tight fibre bending.13 4.6 Summary of the fibre damage.14 5 Maximum transmissible optical power to keep eyes and skin safe.15 5.1 Maximum transmissible exposure(MPE)on the surfac
16、e of eye and skin.15 5.2 Maximum permissible optical power in the fibre for the safety of eye and skin.15 General.15 5.2.1 Need for APR.17 5.2.2 Wavelengths.17 5.2.3 Locations.17 5.2.4 Nominal ocular hazard distance(NOHD).17 5.2.5 Power reduction times.17 5.2.6 Medical aspects of the safety of eyes and skin in existing standards.18 5.2.76 Maximum optical power permissible for optical amplifiers from the viewpoint of fibre damage as well as eye and skin safety.19 7 Conclusion.19 Annex A(inform
