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1、BRITISH STANDARD BS EN ISO 11670:2003 Incorporating Corrigenda Nos. 1, 2 and 3 Lasers and laser-related equipment Test methods for laser beam parameters Beam positional stability The European Standard EN ISO 11670:2003 has the status of a British Standard ICS 31.260 ? Licensed Copy: sheffieldun shef
2、fieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 11670:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 25 April 2003 BSI 9 May 2005 ISBN 0 580 41699 2 National foreword This British Standard is the of
3、ficial English language version of EN ISO 11670:2003. It is identical with ISO 11670:2003, including Technical Corrigendum May 2004. It supersedes BS EN ISO 11670:2000 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee CPW/172, Optics and optical instrum
4、ents, which has the responsibility to: A list of organizations represented on this committee 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
5、 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 a contract. Users are responsible for its correct appli
6、cation. 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 proposals for change, and keep the UK interests informed; mo
7、nitor 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 ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 15, the Annex ZA page, an i
8、nside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 14576 Corrigendum No. 1 11 July 2003Replacing the EN ISO foreword page and incorporating the Annex ZA page 152
9、29 Corrigendum No. 2 1 July 2004Replaced equations (10), (11), (20), (21), (22), (23), (27), (28) and (33) 15533 Corrigendum No. 3 9 May 2005Addition of an Endorsement notice to Foreword Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPE
10、AN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11670 April 2003 ICS 31.260Supersedes EN ISO 11670:1999 English version Lasers and laser-related equipment - Test methods for laser beam parameters - Beam positional stability (ISO 11670:2003) Lasers et quipements associs aux lasers - Mthodes dessai
11、 des paramtres du faisceau laser - Stabilit de vise du faisceau (ISO 11670:2003) Laser und Laseranlagen - Prfverfahren fr Laserstrahlparameter - Strahllagestabilitt (ISO 11670:2003) This European Standard was approved by CEN on 21 February 2003. CEN members are bound to comply with the CEN/CENELEC I
12、nternal 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 obtained on application to the Management Centre or to any CEN memb
13、er. 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 Management Centre has the same status as the official versions. CEN members a
14、re the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT E
15、UROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11670:2003 E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov
16、19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CORRECTED 2003-06-25 Foreword This document (EN ISO 11670:2003) has been prepared by Technical Committee ISO/TC 172 “Optics and optical instruments“ in collaboration with Technical Committee CEN/TC 123 “Lasers and laser-related equipment“, the s
17、ecretariat 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 October 2003, and conflicting national standards shall be withdrawn at the latest by October 2003. This document
18、 supersedes EN ISO 11670:1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Ita
19、ly, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11670:2003 has been approved by CEN as EN ISO 11670:2003 without any modifications. NOTE Normative references to International Standards are listed in
20、 Annex ZA (normative). EN ISO 11670:2003 Endorsement notice The text of ISO 11670:2003/Cor.1:2004 has been approved by CEN as a European Corrigendum without any modifications. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STA
21、NDARD ISO 11670 Second edition 2003-04-01 Reference number ISO 11670:2003(E) Lasers and laser-related equipment Test methods for laser beam parameters Beam positional stability Lasers et quipements associs aux lasers Mthodes dessai des paramtres du faisceau laser Stabilit de vise du faisceau EN ISO
22、11670:2003 Incorporating Technical Corrigendum 2004-05-15 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO :07611(3002)E ii ISO 3002 All rithgs reresvde id FDPscalimer ThFDP si fam eliy ctnome niat deddebyepfa.sec In cacnadrociw eth sebod
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27、 14 + 10 947 11 Fxa + 22 14 0 94774 9 Eam-il ocpyrithgios.ogr Web wwwi.soo.rg EN ISO 11670:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Contents Page 1Scope 1 2Normative references 1 3Terms and definitions 1 4Coordinate systems a
28、nd beam axis . 3 4.1Beam axis distribution 3 4.2Coordinate systems 3 5Test principles 5 5.1Beam positional stability 5 5.2Beam angular stability 5 6Measurement arrangement, test equipment and auxiliary devices 5 6.1Preparation 5 6.2Control of environment . 5 6.3Detection system . 6 6.4Beam-forming o
29、ptics, optical attenuators, beam splitters, focusing elements . 6 6.5Calibration 6 7Test procedures . 7 7.1General . 7 7.2Beam positional stability 7 7.3Beam angular stability 7 8Evaluation . 7 8.1Beam positional stability 7 8.2Beam angular stability 8 9Test report 10 Annex A (informative) Propagati
30、on of absolute beam stability 12 Annex B (informative) Decoupling of short- and long-term fluctuations 15 EN ISO 11670:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Organization for Standardization)
31、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 interested in a subject for which a technical committee has been established has the right to be repres
32、ented 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 Commission (IEC) on all matters of electrotechnical standardization. International Standards are
33、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 technical committees are circulated to the member bodies for voting. Publication as an International
34、 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 shall not be held responsible for identifying any or all such patent rights. ISO 11670 was prepa
35、red by Technical Committee ISO/TC 172, Optics and optical instruments, Subcommittee SC 9, Electro-optical systems. This second edition cancels and replaces the first edition (ISO 11670:1999), Clauses 3 and 9 of which have been technically revised. Annexes A and B have been added. EN ISO 11670:2003 L
36、icensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI v Introduction The centre of a laser beam is defined as the centroid or first-order spatial moment of the power density distribution. The current propagation axis of a beam is then the straight
37、line connecting two centroids measured at two different planes simultaneously in a uniform, homogeneous medium. Beam axis instability may be characterized by transverse displacements and angular movements that are either monotonic, periodic or stochastic in time. The movement of a laser beam may be
38、randomly distributed and uniform in amplitude in all directions. In general, the beam may move a greater amount in one direction. If one direction predominates, the procedures specified in this International Standard can be used to identify that dominant direction (the beam -axis) and its azimuthal
39、location relative to the axes of the laboratory system. This International Standard provides general principles for the measurement of these quantities. In addition, definitions of terminology and symbols to be used in referring to beam position are provided. x EN ISO 11670:2003 Licensed Copy: sheff
40、ieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI . iv Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ANRETNIITOTS LANDNADRAISO 76113002:0)E( 1 Lasers and laser-related equipment Test methods for laser b
41、eam parameters Beam positional stability 1Scope This International Standard specifies methods for determining laser beam positional as well as angular stability. The test methods given in this International Standard are intended to be used for the testing and characterization of lasers. 2Normative r
42、eferences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 11145:2001, Optics and optical inst
43、ruments Lasers and laser-related equipment Vocabulary and symbols ISO 11146:1999, Lasers and laser-related equipment Test methods for laser beam parameters Beam widths, divergence angle and beam propagation factor IEC 61040:1990, Power and energy measuring detectors, instruments and equipment for la
44、ser radiation 3Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61040, ISO 11145 and ISO 11146 and the following apply. 3.1 angular movement , angular movement of the laser beam in the - and - planes, respectively NOTEThese quantities are defined in the
45、 beam axis system , , . If the ratio of the quantity in the direction to that in the direction does not exceed 1,15:1, the quantity is regarded as rotationally symmetric and only one number may be given. The symbol without index is used in that case. 3.2 beam angular stability , twice the standard d
46、eviation of the measured angular movement NOTEThese quantities are defined in the beam axis system , , . If the ratio of the quantity in the direction to that in the direction does not exceed 1,15:1, the quantity is regarded as rotationally symmetric and only one number may be given. The symbol with
47、out index is used in that case. 3.3 pivot point of intersection of all momentary beam axes with the -axis NOTEThe measurement of the pivot is not a subject of this International Standard, because it does not necessarily exist. xy x zy z x y zx y xy x y zx y z EN ISO 11670:2003 Licensed Copy: sheffie
48、ldun sheffieldun, na, Sun Nov 19 12:52:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 3.4 transverse displacement , distance of transverse displacement of the laser beam in the - and -directions, respectively NOTE 1These quantities are defined in the beam axis system , , . If the ratio of the quant
49、ity in the direction to that in the direction does not exceed 1,15:1, the quantity is regarded as rotationally symmetric and only one number may be given. The symbol without index is used in that case. NOTE 2The measurement of the transverse displacement is not a subject of this International Standard. 3.5 beam positional movement positional movement of the centroid of the laser beam in the plane NOTEThe positional movement at plane