1、 IEC/TR 62469Edition 1.0 2007-08TECHNICAL REPORT Guidance for residual stress measurement of optical fibre IEC/TR 62469:2007(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2007 IEC,G
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9、ERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC/TR 62469Edition 1.0 2007-08TECHNICAL REPORT Guidance for residual stress measurement of optical fibre INTERNATIONAL ELECTROTECHNICAL COMMISSION PICS 33.180.10 PRICE CODEISBN 2-8318-9301-1LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR
10、 INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 TR 62469 IEC:2007(E)CONTENTS FOREWORD.3 1 Scope.5 2 Justification of measurement.5 3 Apparatus.6 3.1 General.6 3.2 Light source.6 3.3 Polarizer and analyzer.6 3.4 Sample fibre preparation.6 3.5 Variable phase compensator.6 3.6 Opti
11、cal intensity detection.7 3.7 Data acquisition.7 4 Data analysis and formula.7 4.1 General.7 4.2 1-D stress profile for a fibre with a cylindrically symmetric structure.8 4.3 2-D stress profile for a fibre with a cylindrically non-symmetric structure.9 5 Measurement procedure.12 5.1 Alignment of pol
12、arizer and analyzer.12 5.2 Fibre mounting.12 5.3 Taking transmitted intensity data),(yI.12 5.4 Calculation of 1-D stress profile for a fibre with a cylindrically symmetric structure.12 5.5 Calculation of 2-D stress profile for a fibre with a cylindrically non-symmetric structure.12 6 Documentation.1
13、2 6.1 Information to be reported for each measurement.12 6.2 Information that should be available upon request.13 Bibliography.14 Figure 1 Polariscopic phase retardation measurement setup for an optical fibre.6 Figure 2 Measured transmission intensity as a function of fibre radius and external phase
14、.7 Figure 3 Propagation of laser light across the fibre cross-section.8 Figure 4 Stress profile for a fibre with depressed inner cladding and jacketed tube.9 Figure 5 Examples of projected phase retardation measurement)(y for a PM fibre as a function of fibre radius y when the projected angle is 0,4
15、5,90,and 135.10 Figure 6 Measured projected phases),(y of a PM fibre for various projected angles as a function of fibre radius.11 Figure 7 Calculated 2-D stress profile of a PM fibre.11 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.
16、TR 62469 IEC:2007(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ GUIDANCE FOR RESIDUAL STRESS MEASUREMENT OF OPTICAL FIBRE FOREWORD 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 electrical and electronic fields.To this end and in addition to other activities
