《BS-EN-ISO-11554-2006.pdf》由会员分享，可在线阅读，更多相关《BS-EN-ISO-11554-2006.pdf（30页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN ISO 11554:2006 Optics and photonics Lasers and laser-related equipment Test methods for laser beam power, energy and temporal characteristics The European Standard EN ISO 11554:2006 has the status of a British Standard ICS 31.260 ? Licensed Copy: sheffieldun sheffieldun, na, S
2、un Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 11554:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2006 BSI 2006 ISBN 0 580 48392 4 National foreword This British Standard is the official English langua
3、ge version of EN ISO 11554:2006. It is identical with ISO 11554:2006. It supersedes BS EN ISO 11554:2003 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee CPW/172, Optics and photonics, to Subcommittee CPW/172/9, Electro-Optical systems, which has the r
4、esponsibility 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 in this document may be found in the BSI Catalogue under the section entit
5、led “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 a contract. Users are responsible for its correct application. Compliance
6、 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 proposals for change, and keep UK interests informed; monitor related internat
7、ional and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 19 and a back cover. The BSI copyright notice dis
8、played in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11554 May
9、 2006 ICS 31.260Supersedes EN ISO 11554:2003 English Version Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam power, energy and temporal characteristics (ISO 11554:2006) Optique et photonique - Lasers et quipements associs aux lasers - Mthodes dessai de la puis
10、sance et de lnergie des faisceaux lasers et de leurs caractristiques temporelles (ISO 11554:2006) Optik und Photonik - Laser und Laseranlagen - Prfverfahren fr Leistung, Energie und Kenngren des Zeitverhaltens von Laserstrahlen (ISO 11554:2006) This European Standard was approved by CEN on 16 March
11、2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions 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 obtaine
12、d on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secreta
13、riat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portu
14、gal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means
15、 reserved worldwide for CEN national Members. Ref. No. EN ISO 11554:2006: E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11554:2006 Foreword This document (EN ISO 11554:2006) has been prepared by Technical Committee ISO/TC 172 “Opt
16、ics and optical instruments“ in collaboration with Technical Committee CEN/TC 123 “Lasers and photonics“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by N
17、ovember 2006, and conflicting national standards shall be withdrawn at the latest by November 2006. This document supersedes EN ISO 11554:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requ
18、irements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard:
19、Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice
20、The text of ISO 11554:2006 has been approved by CEN as EN ISO 11554:2006 without any modifications. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 11554:2006(E) INTERNATIONAL STANDARD ISO 11554 Third edition 2006-05-01
21、Optics and photonics Lasers and laser-related equipment Test methods for laser beam power, energy and temporal characteristics Optique et photonique Lasers et quipements associs aux lasers Mthodes dessai de la puissance et de lnergie des faisceaux lasers et de leurs caractristiques temporelles EN IS
22、O 11554:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative r
23、eferences. 1 3 Terms and definitions. 1 4 Symbols and units of measurement. 2 5 Measurement principles. 3 6 Measurement configuration, test equipment and auxiliary devices . 3 6.1 Preparation 3 6.2 Control of environmental impacts 6 6.3 Detectors . 6 6.4 Beam-forming optics 7 6.5 Optical attenuators
24、. 7 7 Measurements. 7 7.1 General. 7 7.2 Power of cw lasers 7 7.3 Power stability of cw lasers. 8 7.4 Pulse energy of pulsed lasers. 8 7.5 Energy stability of pulsed lasers. 8 7.6 Temporal pulse shape, pulse duration, rise time, fall time and peak power 8 7.7 Pulse duration stability 8 7.8 Pulse rep
25、etition rate . 8 7.9 Small signal cut-off frequency 9 8 Evaluation 9 8.1 General. 9 8.2 Power of cw lasers 9 8.3 Power stability of cw lasers. 10 8.4 Pulse energy of pulsed lasers. 10 8.5 Energy stability of pulsed lasers. 10 8.6 Temporal pulse shape, pulse duration, rise time, fall time and peak po
26、wer 10 8.7 Pulse duration stability 13 8.8 Pulse repetition rate . 13 8.9 Small signal cut-off frequency 13 9 Test Report 13 Annex A (informative) Relative intensity noise (RIN) . 16 Bibliography. 18 EN ISO 11554:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Un
27、controlled Copy, (c) BSI iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body intereste
28、d in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Com
29、mission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the techni
30、cal committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO sh
31、all not be held responsible for identifying any or all such patent rights. ISO 11554 was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 9, Electro-optical systems. This third edition cancels and replaces the second edition (ISO 11554:2003), which has been technical
32、ly revised. For the purposes of this International Standard, the CEN annex regarding fulfilment of European Council Directives has been removed. EN ISO 11554:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI v Introduction The measurement
33、 of laser power (energy for pulsed lasers) is a common type of measurement performed by laser manufacturers and users. Power (energy) measurements are needed for laser safety classification, stability specifications, maximum laser output specifications, damage avoidance, specific application require
34、ments, etc. This document provides guidance on performing laser power (energy) measurements as applied to stability characterization. The stability criteria are described for various temporal regions (e.g., short-term, medium-term and long-term) and provide methods to quantify these specifications.
35、This International Standard also covers pulse measurements where detector response speed can be critically important when analysing pulse shape or peak power of short pulses. To standardize reporting of power (energy) measurement results, a report template is also included. This International Standa
36、rd is a Type B standard as stated in ISO 12100-1. The provisions of this International standard may be supplemented or modified by a Type C standard. Note that for machines which are covered by the scope of a Type C standard and which have been designed and built according to the provisions of that
37、standard, the provisions of that Type C standard take precedence over the provisions of this Type B standard. EN ISO 11554:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:5
38、2:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Optics and photonics Lasers and laser-related equipment Test methods for laser beam power, energy and temporal characteristics 1 Scope This International Standard specifies test methods for determining the power and energy of continuous-wave and puls
39、ed laser beams, as well as their temporal characteristics of pulse shape, pulse duration and pulse repetition rate. Test and evaluation methods are also given for the power stability of cw-lasers, energy stability of pulsed lasers and pulse duration stability. The test methods given in this Internat
40、ional Standard are used for the testing and characterization of lasers. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the last edition of the referenced d
41、ocument (including any amendments) applies. ISO 11145:2006, Optics and optical instruments Lasers and laser-related equipment Vocabulary and symbols IEC 61040:1990, Power and energy measuring detectors, instruments and equipment for laser radiation International vocabulary of basic and general terms
42、 in metrology (VIM). BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML, 2nd ed. 1993 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 11145, in the VIM and the following apply. 3.1 relative intensity noise RIN R( f ) single-sided spectral density of the power
43、fluctuations normalized to the square of the average power as a function of the frequency f NOTE 1 The relative intensity noise R( f ) or RIN as defined above is explicitly spoken of as the “relative intensity noise spectral density”, but usually simply referred to as RIN. NOTE 2 For further details
44、, see Annex A. 3.2 small signal cut-off frequency fc frequency at which the laser power output modulation drops to half the value obtained at low frequencies when applying small, constant input power modulation and increasing the frequency EN ISO 11554:2006 Licensed Copy: sheffieldun sheffieldun, na
45、, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 4 Symbols and units of measurement The symbols and units specified in ISO 11145 and in Table 1 are used in this International Standard. Table 1 Symbols and units of measurement Symbol Unit Term f Hz Frequency fc Hz Small signal cut-o
46、ff frequency f1, f2 Hz Frequency range for which the relative intensity noise R( f ) is given k 1 Coverage factor for the determination of uncertainty m 1 Reading m 1 Mean value of readings P W Power averaged over the sampling period P W Mean power, averaged over the measurement period at the operat
47、ing conditions specified by the manufacturer P 1 Relative power fluctuation to a 95 % confidence level for the appropriate sampling period P (1 s) and/or P (1 ms) and/or P (0,1 s) and/or P (1 s) Q J Mean pulse energy Q 1 Relative pulse energy fluctuation to a 95 % confidence level R( f ) Hz1 or dB/H
48、z Relative intensity noise, RIN S(t) 1 Detector signal s 1 Measured standard deviation T s Pulse repetition period t s Measurement period Urel 1 Expanded relative uncertainty corresponding to a 95 % confidence level (coverage factor k = 2) Urel(C) 1 Expanded relative uncertainty of calibration corre
49、sponding to a 95 % confidence level (coverage factor k = 2) F s Fall time of laser pulse H 1 Relative pulse duration fluctuation with regard to H to a 95 % confidence level R s Rise time of laser pulse 10 1 Relative pulse duration fluctuation with regard to 10 to a 95 % confidence level NOTE 1 For further details regarding 95 % confidence level see ISO 2602 1. NOTE 2 The expanded uncertainty is obtained by multiplying the standard uncertainty by