1、 IEC 61290-1-1 Edition 3.0 2015-05 INTERNATIONAL STANDARD Optical amplifiers Test methods Part 1-1: Power and gain parameters Optical spectrum analyzer method IEC 61290-1-1:2015-05(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva, Switzerland All rights reserved. Unless otherwi
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11、rum analyzer method INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 33.180.30 ISBN 978-2-8322-2669-8 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. 2 IEC 61290-1-1:2015 IEC 2015 CONTENTS FOREWO
12、RD . 3 1 Scope 5 2 Normative references 5 3 Terms, definitions and abbreviations . 5 3.1 Terms and definitions 5 3.2 Abbreviations 5 4 Apparatus 6 5 Test sample . 8 6 Procedure 8 7 Calculation 9 8 Test results . 11 Bibliography 12 Figure 1 Typical arrangement of the optical spectrum analyzer test ap
13、paratus for gain and power measurements . 6 IEC 61290-1-1:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL AMPLIFIERS TEST METHODS Part 1-1: Power and gain parameters Optical spectrum analyzer method FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide or
14、ganization 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 activitie
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21、sible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical comm
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23、ons. 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 the subject of pate
24、nt rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61290-1-1 has been prepared by subcommittee 86C: Fibre optic systems and active devices, of IEC technical committee 86: Fibre optics. This third edition cancels and replaces the sec
25、ond edition published in 2006 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) updates on the characteristics of measurement apparatus; b) revised list of addressed optical amplifier parameters. 4 IEC 612
26、90-1-1:2015 IEC 2015 The text of this standard is based on the following documents: FDIS Report on voting 86C/1309/FDIS 86C/1328/RVD 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 i
27、n accordance with the ISO/IEC Directives, Part 2. This standard shall be used in conjunction with IEC 61290-1 and IEC 61291-1. A list of all parts of the IEC 61290 series, published under the general title Optical amplifiers Test methods 1can be found on the IEC website. The committee has decided th
28、at the contents of this publication will remain unchanged until the stability date indicated on the IEC website 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. A bi
29、lingual version of this publication may be issued at a later date 1The first editions of some of these parts were published under the general title Optical fibre amplifiers Basic specification or Optical amplifier test methods. IEC 61290-1-1:2015 IEC 2015 5 OPTICAL AMPLIFIERS TEST METHODS Part 1-1:
30、Power and gain parameters Optical spectrum analyzer method 1 Scope This part of IEC 61290 applies to all commercially available optical amplifiers (OAs) and optically amplified modules. It applies to OAs using optically pumped fibres (OFAs based on either rare-earth doped fibres or on the Raman effe
31、ct), semiconductor OAs (SOAs) and planar optical waveguide amplifiers (POWAs). The object of this standard is to establish uniform requirements for accurate and reliable measurements, by means of the optical spectrum analyzer test method, of the following OA parameters, as defined in IEC 61291-1: a)
32、 nominal output signal power; b) gain; c) polarization-dependent gain; d) maximum output signal power; e) maximum total output power. NOTE All numerical values followed by () are suggested values for which the measurement is assured. The object of this standard is specifically directed to single-cha
33、nnel amplifiers. For multichannel amplifiers, one should refer to the IEC 61290-10 series 1 2 . 2 Normative references The following 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 app
34、lies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61290-1, Optical amplifiers - Test methods - Part 1: Power and gain parameters IEC 61291-1, Optical amplifiers - Part 1: Generic specification 3 Terms, definitions and abbreviations 3.
35、1 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61291-1 apply. 3.2 Abbreviations ASE amplified spontaneous emission DBR distributed Bragg reflector (laser diode) DFB distributed feed-back (laser diode) 2Numbers in square brackets refer to the Bibliog
36、raphy 6 IEC 61290-1-1:2015 IEC 2015 ECL external cavity laser (diode) LED light emitting diode OA optical amplifier OFA optical fibre amplifier POWA planar optical waveguide amplifier SOA semiconductor optical amplifier 4 Apparatus A diagram of the measurement set-up is given in Figure 1. Figure 1a
37、Calibration Figure 1b Input signal power measurement Figure 1c Output power measurement Figure 1 Typical arrangement of the optical spectrum analyzer test apparatus for gain and power measurements The test equipment listed below, with the required characteristics, is needed. a) optical source: The o
38、ptical source shall be either at fixed wavelength or wavelength-tuneable. fixed-wavelength optical source: This optical source shall generate a light with a wavelength and optical power specified in the relevant detail specification. Unless otherwise specified, the optical source shall emit a contin
39、uous wave with the full width at half maximum of the spectrum narrower than 1 nm (). A distributed feed-back (DFB) laser, a distributed Bragg reflector (DBR) laser, an external cavity laser (ECL) diode and a light emitting diode (LED) with a narrow-band filter are applicable, for example. The suppre
40、ssion ratio for the side modes for the DFB laser, the DBR laser or the ECL IEC Optical power meter Variable optical attenuator dB Optical source J1 Polarization controller (optional) IEC Optical spectrum analyzer Variable optical attenuator dB Optical source J1 J2 Polarization controller (optional)
41、IEC OA under test Optical spectrum analyzer Variable optical attenuator dB Optical source J1 OA J2 Polarization controller (optional) IEC 61290-1-1:2015 IEC 2015 7 shall be higher than 30 dB (). The output power fluctuation shall be less than 0,05 dB (), which may be better attainable with an optica
42、l isolator at the output port of the optical source. Spectral broadening at the foot of the lasing spectrum shall be minimal for laser sources and the ratio of the source power to total spontaneous emission power of the laser shall be more than 30 dB; wavelength-tuneable optical source: This optical
43、 source shall be able to generate a wavelength-tunable light within the range specified in the relevant detail specification. Its optical power shall be specified in the relevant detail specification. Unless otherwise specified, the optical source shall emit a continuous wave with the full width at
44、half maximum of the spectrum narrower than 1 nm (). An ECL or an LED with a narrow bandpass optical filter is applicable, for example. The suppression ratio of side modes for the ECL shall be higher than 30 dB (). The output power fluctuation shall be less than 0,05 dB, which may be more easily atta
45、inable with an optical isolator at the output port of the optical source. Spectral broadening at the foot of the lasing spectrum shall be minimal for the ECL. Spectral broadening at the foot of the lasing spectrum shall be minimal for laser sources and the ratio of the source power to total spontane
46、ous emission power of the laser shall be more than 30 dB. The use of an LED shall be limited to small-signal gain measurements. b) optical power meter: It shall have a measurement uncertainty better than 0,2 dB, irrespective of the state of polarization, within the operational wavelength bandwidth o
47、f the OA. A dynamic range exceeding the measured gain is required (e.g. 40 dB); c) optical spectrum analyzer: Within the operational wavelength bandwidth of the OA, the linearity of the spectral power measurement shall be better than the desired gain uncertainty and at most 0,5 dB, and the amplitude
48、 stability of the spectral power measurement shall be better than the desired power uncertainty and at least better than 0,2 dB over the duration of the measurement. Polarization dependence of the spectral power measurement shall be better than 0,5 dB. The wavelength measurement uncertainty shall be
49、 better than 0,5 nm. A dynamic range exceeding the measured gain is required (e.g. 40 dB). The spectral resolution shall be equal or better than 1 nm; d) optical isolator: Optical isolators may be used to bracket the OA. The polarization-dependent loss variation of the isolator shall be better than 0,2 dB (). Optical isolation shall be better than 40 dB (). The reflectance from this device shall be smaller than 40 dB () at each port; e) variable o
