1、 IEC 61290-3-3 Edition 1.0 2013-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical amplifiers Test methods Part 3-3: Noise figure parameters Signal power to total ASE power ratio Amplificateurs optiques Mthodes dessais Partie 3-3: Paramtres du facteur de bruit Rapport puissance du signal sur pui
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16、90-3-3 Edition 1.0 2013-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical amplifiers Test methods Part 3-3: Noise figure parameters Signal power to total ASE power ratio Amplificateurs optiques Mthodes dessais Partie 3-3: Paramtres du facteur de bruit Rapport puissance du signal sur puissance t
17、otale dESA INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE Q ICS 33.180.30 PRICE CODE CODE PRIX ISBN 978-2-8322-1173-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Mak
18、e sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colourinside 2 61290-3-3 IEC:2013 CONTENTS FOREWORD . 3 1 Scope and object . 5 2 Normative references . 5 3 Terms, definitions an
19、d abbreviations 5 3.1 Terms and definitions . 5 3.2 Abbreviations . 6 4 Background . 7 5 Apparatus 8 5.1 Measurement using an OSA . 8 5.2 Measurement using a bandpass filter and an optical power meter . 9 6 Test sample . 11 7 Procedure 11 7.1 General 11 7.2 Measurement using an OSA . 11 7.2.1 Calibr
20、ation 11 7.2.2 Measurement 12 7.3 Measurement using a bandpass filter and an optical power meter . 13 7.3.1 General. 13 7.3.2 Calibration 13 7.3.3 Measurement 13 8 Calculations . 14 9 Test results 14 Annex A (informative) Signal power to total ASE power ratio Dependence on signal input power, wavele
21、ngth and output power. 15 Bibliography 17 Figure 1 Test set-up for OSA calibration and for measuring signal input power and source spontaneous emission power . 8 Figure 2 Test set-up for measuring signal output power and ASE power using an OSA 8 Figure 3 Test set-ups for filter calibration and measu
22、ring the signal input power 10 Figure 4 Test set-ups for measuring output signal power and ASE power using a filter and an optical power meter . 10 Figure A.1 The dependence of Sig_ASE on signal input power . 15 Figure A.2 The ASE spectrum for two different signal wavelengths . 16 Figure A.3 Sig_ASE
23、 as a function of output power for different signal wavelength . 16 61290-3-3 IEC:2013 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL AMPLIFIERS TEST METHODS Part 3-3: Noise figure parameters Signal power to total ASE power ratio FOREWORD 1) The International Electrotechnical Commission (IEC)
24、 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
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33、her 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 the elements of this IEC Publication may be th
34、e subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61290-3-3 has been prepared by subcommittee 86C: Fibre optic systems and active devices, of IEC technical committee 86: Fibre optics. The text of this standard is b
35、ased on the following documents: CDV Report on voting 86C/1121/CDV 86C/1184/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 drafted in accordance with the ISO/IEC Directives, Part 2. 4 6
36、1290-3-3 IEC:2013 A list of all parts in the IEC 61290 series, published under the general title Optical amplifiers Test methods, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web s
37、ite 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. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which
38、are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 61290-3-3 IEC:2013 5 OPTICAL AMPLIFIERS TEST METHODS Part 3-3: Noise figure parameters Signal power to total ASE power ratio 1 Scope and object This part of I
39、EC 61290-3 applies to all commercially available single channel optical amplifiers (OAs), including OAs using optically pumped fibres (OFAs) based on either rare-earth doped fibres or on the Raman effect, semiconductor optical amplifier modules (SOA modules) and planar optical waveguide amplifiers (
40、POWAs). More specifically, it applies to single channel OAs placed before optical receivers, where there are no optical bandpass filtering elements placed between the OA and the receiver. The object of this part of IEC 61290-3 is to establish uniform requirements for accurate and reliable measuremen
41、t of the ratio of the signal output power to the total ASE power generated by the OA in the optical bandwidth of the receiver. This quantity is a measure of the spontaneous-spontaneous beat noise at the receiver, and is correlated to the spontaneous-spontaneous noise factor of the OA, Fsp-sp, as def
42、ined in IEC 61290-3 and IEC 61291-1. IEC 61290-3-1 describes a measurement method, using an optical spectrum analyzer, OSA, for the signal-spontaneous noise factorpssigF but does not describe a method for measuring Fsp-sp. IEC 61290-3-2 describes a measurement method, using an electrical spectrum an
43、alyzer (ESA), for the total noise factor Fsp-sp+ Fsig-sp. However, this method does not allow Fsp-spto be measured separately, and therefore does not provide a means of directly quantifying the effect of spontaneous-spontaneous beat noise at the receiver. This part of IEC 61290-3 complements IEC 612
44、90-3-1 and IEC 61290-3-2 in that it provides such a means. Two measurement methods are provided for the ratio of the signal output power to the total ASE power. The first method uses an OSA, while the second method uses a bandpass filter and an optical power meter. 2 Normative references The followi
45、ng 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. IEC 61290-3, Optic
46、al amplifiers Test methods Part 3: Noise figure parameters IEC 61291-1:2012, Optical fibre amplifiers Part 1: Generic specification 3 Terms, definitions and abbreviations 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 6 61290-3-3 IEC:2013 3.1.
47、1 signal input power Pinpower of the optical signal at the input to the OA 3.1.2 signal output power Poutpower of the optical signal at the output of the OA 3.1.3 signal wavelength swavelength of the signal optical carrier SOURCE: IEC 61291-1:2012, definition 3.2.2.1.1 3.1.4 signal gain G gain of th
48、e OA at the signal wavelength, defined as the ratio of the output signal power to the input signal power 3.1.5 amplified spontaneous emission band ASE band BASEwavelength band that contains at least 99 % of the total ASE power generated by OA 3.1.6 ASE centre wavelength Ccentre wavelength of the ASE
49、 band 3.1.7 ASE power PASEASE power generated by the OA within the ASE band 3.1.8 signal to total ASE power ratio Sig_ASE ratio of the output signal power to the total ASE power within BASE3.1.9 spontaneousspontaneous noise factor Fsp-spratio of the electrical SNR due to spontaneous-spontaneous beat noise at the OA output to the electrical SNR due to shot noise at the OA input Note 1 to entry:
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