SIST EN ISO 11554:2025
(Main)Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam radiant power, radiant energy and temporal characteristics (ISO 11554:2025)
Optics and photonics - Lasers and laser-related equipment - Test methods for laser beam radiant power, radiant energy and temporal characteristics (ISO 11554:2025)
This document specifies test methods for determining the radiant power and radiant energy of continuous wave and pulsed 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 radiant power stability of cw-lasers, radiant energy stability of pulsed lasers and pulse duration stability.
The test methods given in this document are used for the testing and characterization of lasers.
Optik und Photonik - Laser und Laseranlagen - Prüfverfahren für Leistung, Energie und Kenngrößen des Zeitverhaltens von Laserstrahlen (ISO 11554:2025)
Optique et photonique - Lasers et équipements associés aux lasers - Méthodes d'essai de la puissance rayonnante, de l'énergie rayonnante et des caractéristiques temporelles des faisceaux lasers (ISO 11554:2025)
Le présent document spécifie des méthodes d'essai pour la détermination de la puissance rayonnante et de l'énergie rayonnante des faisceaux lasers continus et impulsionnels ainsi que leurs caractéristiques temporelles de forme d’impulsion, de durée d'impulsion et du taux de répétition d’impulsion. Il indique, en outre, des méthodes d'essai et d'évaluation de la stabilité de la puissance rayonnante des lasers continus, de la stabilité de l'énergie rayonnante des lasers impulsionnels et de la stabilité de la durée d'impulsion.
Les méthodes d'essai données dans le présent document sont destinées à être utilisées pour les essais et la détermination des caractéristiques des lasers.
Optika in fotonska tehnologija - Laserji in laserska oprema - Preskusne metode za sevalno moč, sevalno energijo in časovne karakteristike laserkih žarkov (ISO 11554:2025)
test 2
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2025
Nadomešča:
SIST EN ISO 11554:2017
Optika in fotonska tehnologija - Laserji in laserska oprema - Preskusne metode za
sevalno moč, sevalno energijo in časovne karakteristike laserkih žarkov (ISO
11554:2025)
Optics and photonics - Lasers and laser-related equipment - Test methods for laser
beam radiant power, radiant energy and temporal characteristics (ISO 11554:2025)
Optik und Photonik - Laser und Laseranlagen - Prüfverfahren für Leistung, Energie und
Kenngrößen des Zeitverhaltens von Laserstrahlen (ISO 11554:2025)
Optique et photonique - Lasers et équipements associés aux lasers - Méthodes d'essai
de la puissance rayonnante, de l'énergie rayonnante et des caractéristiques temporelles
des faisceaux lasers (ISO 11554:2025)
Ta slovenski standard je istoveten z: EN ISO 11554:2025
ICS:
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 11554
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2025
EUROPÄISCHE NORM
ICS 31.260 Supersedes EN ISO 11554:2017
English Version
Optics and photonics - Lasers and laser-related equipment
- Test methods for laser beam radiant power, radiant
energy and temporal characteristics (ISO 11554:2025)
Optique et photonique - Lasers et équipements Optik und Photonik - Laser und Laseranlagen -
associés aux lasers - Méthodes d'essai de la puissance Prüfverfahren für Leistung, Energie und Kenngrößen
rayonnante, de l'énergie rayonnante et des des Zeitverhaltens von Laserstrahlen (ISO
caractéristiques temporelles des faisceaux lasers (ISO 11554:2025)
11554:2025)
This European Standard was approved by CEN on 13 November 2023.
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 obtained on application to the CEN-CENELEC Management Centre 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 CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11554:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 11554:2025) has been prepared by Technical Committee ISO/TC 172 "Optics
and photonics" 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 December 2025, and conflicting national standards
shall be withdrawn at the latest by December 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11554:2017.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 11554:2025 has been approved by CEN as EN ISO 11554:2025 without any modification.
International
Standard
ISO 11554
Fifth edition
Optics and photonics — Lasers and
2025-06
laser-related equipment — Test
methods for laser beam radiant
power, radiant energy and temporal
characteristics
Optique et photonique — Lasers et équipements associés aux
lasers — Méthodes d'essai de la puissance rayonnante, de
l'énergie rayonnante et des caractéristiques temporelles des
faisceaux lasers
Reference number
ISO 11554:2025(en) © ISO 2025
ISO 11554:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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or ISO’s member body in the country of the requester.
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 11554:2025(en)
Contents Page
Foreword .iv
Introduction .vi
1 Scope . 1
2 Normative references . 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
6.1.1 Sources with small divergence angles .3
6.1.2 Sources with large divergence angles .3
6.1.3 RIN measurement .4
6.1.4 Measurement of small signal cut off frequency .5
6.2 Control of environmental impacts .6
6.3 Detectors.6
6.4 Beam-forming optics .7
6.5 Optical attenuators .7
7 Measurements . 7
7.1 General .7
7.2 Radiant power of cw lasers .7
7.3 Radiant power stability of cw lasers.8
7.4 Radiant pulse energy of pulsed lasers .8
7.5 Radiant energy stability of pulsed lasers .8
7.6 Temporal radiant pulse shape, radiant pulse duration, rise time, fall time and peak
radiant power .8
7.7 Radiant pulse duration stability .8
7.8 Radiant pulse repetition rate .8
7.9 Relative intensity noise, RIN .9
7.10 Small signal cut-off frequency .9
8 Evaluation . 9
8.1 General .9
8.2 Radiant power of cw lasers .10
8.3 Radiant power stability of cw lasers.10
8.4 Radiant pulse energy of pulsed lasers .10
8.5 Radiant energy stability of pulsed lasers .11
8.6 Temporal radiant pulse shape, radiant pulse duration, rise time, fall time and peak
radiant power .11
8.7 Radiant pulse duration stability . 13
8.8 Radiant pulse repetition rate . 13
8.9 Relative intensity noise, RIN . 13
...
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