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1、BRITISH STANDARD BS EN 61300-2-14:2006 Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-14: Tests Optical power handling and damage threshold characterization The European Standard EN 61300-2-14:2006 has the status of a British Standard ICS 33.1
2、80.20 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:17:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-2-14:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2006 BSI 2006 ISBN 0 580 49018 1 National forewor
3、d This British Standard is the official English language version of EN 61300-2-14:2006. It is identical with IEC 61300-2-14:2005. It supersedes BS EN 61300-2-14:1997 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee
4、 GEL/86/2. Interconnecting devices and passive components, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to
5、in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of
6、 a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or prop
7、osals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 22, an inside back cover and a back cover. The BSI cop
8、yright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:17:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 61300-2-14 NORME EUROPENNE E
9、UROPISCHE NORM May 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form an
10、d by any means reserved worldwide for CENELEC members. Ref. No. EN 61300-2-14:2006 E ICS 33.180.20 Supersedes EN 61300-2-14:1997 English version Fibre optic interconnecting devices and passive components - Basic test and measurement procedures Part 2-14: Tests - Optical power handling and damage thr
11、eshold characterization (IEC 61300-2-14:2005) Dispositifs dinterconnexion et composants passifs fibres optiques - Mthodes fondamentales dessais et de mesures Partie 2-14: Essais - Traitement de la puissance optique et caractrisation du seuil de dommage (CEI 61300-2-14:2005) Lichtwellenleiter - Verbi
12、ndungselemente und passive Bauteile Teil 2-14: Prfungen - Ermittlung von Kennwerten der optischen Leistung (IEC 61300-2-14:2005) This European Standard was approved by CENELEC on 2006-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions
13、for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three of
14、ficial versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical co
15、mmittees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United King
16、dom. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:17:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of document 86B/2204/FDIS, future edition 2 of IEC 61300-2-14, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre optics,
17、 was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61300-2-14 on 2006-03-01. This European Standard supersedes EN 61300-2-14:1997. Specific technical changes from EN 61300-2-14:1997 include a fundamental change of the measurement method to introduce various measurement
18、 environments such as limited testing resources. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2006-12-01 latest date by which the national standards conflicting with the EN
19、 have to be withdrawn (dow) 2009-03-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61300-2-14:2005 was approved by CENELEC as a European Standard without any modification. _ EN 61300-2-14:2006 1 2 Licensed Copy: sheffieldun sheffieldun, na, Mon
20、 Nov 13 04:17:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 CONTENTS 1 Scope 4 2 Normative references .5 3 Definitions5 4 General description 5 4.1 Purpose of the component test.5 4.2 Procedures6 4.3 Precautions .6 5 Apparatus.6 5.1 Source unit (S) 6 5.2 Detector unit (D)7 5.3 Environmental chambe
21、r .7 5.4 Data acquisition.7 5.5 Branching device.7 5.6 Temporary joints7 5.7 Safety devices.7 6 Test procedures .8 6.1 Preparation of specimens 8 6.2 Preconditioning8 6.3 Initial measurements8 6.4 Method 1.8 6.5 Method 2.11 6.6 Method 3.12 6.7 Recovery.12 6.8 Final measurements 12 7 Severity12 8 Det
22、ails to be specified 12 Annex A (informative) Background to the test method.15 Annex B (informative) Derating criteria.18 Annex ZA (normative) Normative references to international publications with their corresponding European publications22 Bibliography .21 Figure 1 High power handling and damage
23、threshold characterization test set up8 Figure 2 Flowchart of short-term test10 Figure 3 Flowchart of long-term test .11 Figure B.1 Derating chart .19 Table B.1 Derating criteria .20 EN 61300-2-14:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:17:22 GMT+00:00 2006, Uncontrolled Copy,
24、 (c) BSI 4 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 2-14: Tests Optical power handling and damage threshold characterization 1 Scope The purpose of this part of IEC 61300 is to characterize the robustness of a fibre optic passive component
25、 or interconnecting device against damage from exposure to optical power. Specifically, the objectives are to: characterize both the short term and the long term robustness of components from damage due to optical power induced degradation or failure mechanisms; provide data necessary to ensure that
26、 components are exposed to appropriate optical power levels that will not degrade their performance; identify components prone to irreversible degradation. The test procedure described in this standard is structured such that, if the full characterization option is performed, the component will be c
27、haracterized without the need for re-testing should future applications change. For example, one way to approach the issue of optical power characterization is to test a component at a specific power level and wavelength to which the component will be exposed in a specific application. While testing
28、 of the component at that power/wavelength may indicate the robustness of the component in that specific application, if the component is considered for another application, the tests will need to be performed again at other powers/wavelengths. However, if the component is fully characterized at all
29、 relevant wavelengths, and the maximum power handling level at those wavelengths is identified, then all the information required to assess the suitability of the component in any application is available. The results of the full characterization test method in this standard will be a rating of the
30、component under test. This rating forms the basis of determining the power levels to which the component can be exposed in a reliable manner. It essentially defines the “operating region envelope” for the component. Since there will often be constraints (that is, time, cost, equipment availability)
31、that limit the ability to perform the full characterization, alternative test methods are outlined in this standard that perform only a subset of the full test. The test methods contained in this standard are intended to assess the robustness of components in their normal use conditions for which th
32、ey were designed. EN 61300-2-14:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:17:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 2 Normative references The following referenced documents are indispensable for the application of this standard. For dated references, only the edition c
33、ited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60825-1: Safety of laser products Part 1: Equipment classification, requirements and user guide IEC 61300-1: Fibre optic interconnecting devices and passive components Basic te
34、st and measurement procedures Part 1: General and guidance IEC 61300-3-1: Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3: Examinations and measurements Visual examination 3 Definitions 3.1 drift Pdrift the power at which the device experiences
35、 a specified change in insertion loss (IL) of 0,5 dB during the short term test while under power. This drift is recoverable after power is removed from the component 3.2 failure Pfail the power at which the device experiences a permanent specified change in insertion loss (IL) after power is remove
36、d during the short term test 3.3 maximum power P max the power to which a component may be exposed for up to 500 h and not experience permanent damage Pfail or performance drift Pdrift 4 General description 4.1 Purpose of the component test Testing of the component is designed to yield the following
37、 values: a) drift (see 3.1); b) failure (see 3.2); failure for a component type and wavelength shall be defined as: for a component with an initial IL, 10 dB: 5, 10, 15, 20, (continuing in increments of 5 mW) Samples shall be maintained continuously at each power level for 3 h. NOTE 1 For any device
38、 that, by definition, has varying loss in the use wavelength band (for example, a GFF), the component should be tested at a wavelength as close to the maximum loss in the band as possible. When deciding a test wavelength, consideration should be given to the absorption characteristics of the compone
39、nt material and/or the temperature rise of the material as a function of wavelength. NOTE 2 If there is sufficient confidence that the component will pass the step stress test at higher powers, the testing can be initiated at a higher step in order to save time. (The power level at which the test is
40、 started should be one of the values as defined above.) Equally, if the proposed initial power level is considered to be too high, the test starting point may be reduced. NOTE 3 In case of VOA (variable optical attenuator), the test should be held on maximum attenuation condition. d) Place the sampl
41、e in the environmental chamber, connect to the test apparatus and increase the temperature in the chamber to 70 C. NOTE 1 In case of Category C components, the temperature is 60 C. NOTE 2 Wherever possible the tests should be performed with the sample in an operating configuration (that is, one that
42、 is within specified operating limits, that yields the most internal power dissipation). e) Subject the sample to the initial level in the step stress for 3 h at one of the specified wavelengths. Continuously monitor insertion loss. f) If failure does not occur, the power level is increased to the n
43、ext step and the process repeated. g) The testing shall continue, using the specified power increments, until Pdrift occurs, or the maximum test apparatus power capability is attained. Determine whether the sample recovers when power is removed. If the permanent change in attenuation exceeds the all
44、owed change given in 3.2, Pfail = Pdrift. h) If the permanent change in attenuation does not exceed the allowed change given in 3.2 continue the test until Pfail or the maximum power output laser source is reached (Pfail Pdrift). i) Repeat steps e) to h) for the remaining samples j) Repeat steps e)
45、to i) for the remaining wavelengths, each with a new sample set of three components. A flow chart of the short term test is given in Figure 2. EN 61300-2-14:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:17:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 10 Increment power and subject
46、to 3 h Go to long term test Select next Yes Yes No No Yes IL power increment 10 dB IL) should have much lower step increments since they will operate at a much higher temperature. The step levels in this case were chosen to be 5 mW. The steps for the centre range of 1 dB to 10 dB IL components were
47、chosen to be 20 mW. If there is enough evidence that the component will be robust up to a given power level, the user of the test method has the option to start the short term testing at a power close to the expected failure point, thereby expediting the test. A.5 Failure criteria A failure criterio
48、n of 0,5 dB change in IL was chosen as the baseline criterion. This criterion is consistent with most performance tests and is sensitive enough to detect significant changes in component behavior. A.6 Wavelength A goal of the test method was to fully characterize a components robustness against dama
49、ge from optical power. Since the absorbing characteristics of most components will change as a function of wavelength, a full characterization must include wavelengths that represent the highest risk situations. EN 61300-2-14:2006 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 04:17:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 17 EN 61300-2-14:2006 Licensed Copy: sheffieldun s