1、 IEC 61280-1-3 Edition 3.0 2021-07 INTERNATIONAL STANDARD Fibre optic communication subsystem test procedures Part 1-3:General communication subsystems Measurement of central wavelength,spectral width and additional spectral characteristics IEC 61280-1-3:2021-07(en)colourinside THIS PUBLICATION IS C
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9、d French,with equivalent terms in 18 additional languages.Also known as the International Electrotechnical Vocabulary(IEV)online.IEC 61280-1-3 Edition 3.0 2021-07 INTERNATIONAL STANDARD Fibre optic communication subsystem test procedures Part 1-3:General communication subsystems Measurement of centr
10、al wavelength,spectral width and additional spectral characteristics INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.180.01 ISBN 978-2-8322-9954-8 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributo
11、r.colourinside 2 IEC 61280-1-3:2021 IEC 2021 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references.6 3 Terms,definitions and abbreviated terms.6 3.1 Wavelength.6 3.2 Spectral width.7 3.3 Additional spectral characteristics.7 3.4 Abbreviated terms.8 4 Apparatus.8 4.1 Calibrated optical spectrum analyz
12、er(OSA).8 4.2 Calibrated optical wavelength meter(OWM).8 4.3 Power supplies.9 4.4 Input signal source or modulator.9 4.5 Test cord.9 5 Test sample.9 6 Procedure(method A).9 6.1 General.9 6.2 Setup.10 6.3 Adjustment of spectrum analyzer controls.10 6.4 Setting of optical wavelength meter.11 7 Procedu
13、re(method B).11 7.1 Setup.11 7.2 Adjustment of spectrum analyzer controls.11 7.3 Setting of optical wavelength meter.11 7.4 Continuous LED and SLM spectra.12 7.5 Discrete MLM spectra.12 7.6 SLM spectra.12 8 Calculation.13 8.1 General.13 8.2 Centre wavelength.13 8.2.1 Continuous LED spectra.13 8.2.2
14、Discrete MLM spectra.13 8.3 Centroidal wavelength.13 8.4 Peak wavelength.14 8.4.1 Continuous LED and SLM spectra.14 8.4.2 Discrete MLM spectra.14 8.5 RMS spectral width(rms).14 8.6 n-dB-down spectral width(n-dB).14 8.7 Full-width at half-maximum spectral width(fwhm).14 8.7.1 Continuous LED spectra.1
15、4 8.7.2 Discrete MLM spectra.15 8.8 Side-mode suppression ratio(SMSR).15 8.9 Signal-to-source spontaneous emission ratio(SSER).15 9 Test results.15 9.1 Required information.15 IEC 61280-1-3:2021 IEC 2021 3 9.2 Information to be available on request.16 10 Examples of results.16 Bibliography.21 Figure
16、 1 Example of a LED optical spectrum.16 Figure 2 Typical spectrum analyzer output for MLM laser.18 Figure 3 fwhm spectral width measurement for MLM laser.18 Figure 4 fwhm spectral width calculation for MLM laser.19 Figure 5 Peak emission wavelength and 30-dB measurement for SLM laser.19 Figure 6 Resolution bandwidth(RBW)dependence of SMSR for SLM laser.20 Figure 7 Signal-to-source spontaneous emission ratio measurement for SLM laser.20 Table 1 Measurement points for LED spectrum from Figure 1.17