SIST EN ISO 13695:2025

SLOVENSKI STANDARD
01-februar-2025
Nadomešča:
SIST EN ISO 13695:2005
Optika in fotonska tehnologija – Preskusne metode za spektralne lastnosti laserjev
(ISO 13695:2024)
Optics and photonics - Lasers and laser-related equipment - Test methods for the
spectral characteristics of lasers (ISO 13695:2024)
Optik und Photonik - Laser und Laseranlagen - Prüfverfahren für die spektralen
Kenngrößen von Lasern (ISO 13695:2024)
Optique et photonique - Lasers et équipement associé aux lasers - Méthodes d'essai des
caractéristiques spectrales des lasers (ISO 13695:2024)
Ta slovenski standard je istoveten z: EN ISO 13695:2024
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 13695
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2024
EUROPÄISCHE NORM
ICS 31.260 Supersedes EN ISO 13695:2004
English Version
Optics and photonics - Lasers and laser-related equipment
- Test methods for the spectral characteristics of lasers
(ISO 13695:2024)
Optique et photonique - Lasers et équipement associé Optik und Photonik - Laser und Laseranlagen -
aux lasers - Méthodes d'essai des caractéristiques Prüfverfahren für die spektralen Kenngrößen von
spectrales des lasers (ISO 13695:2024) Lasern (ISO 13695:2024)
This European Standard was approved by CEN on 30 November 2024.

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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13695:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 13695:2024) 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 June 2025, and conflicting national standards shall be
withdrawn at the latest by June 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 13695:2004.
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 13695:2024 has been approved by CEN as EN ISO 13695:2024 without any modification.

International
Standard
ISO 13695
Second edition
Optics and photonics — Lasers
2024-11
and laser-related equipment —
Test methods for the spectral
characteristics of lasers
Optique et photonique — Lasers et équipement associé aux lasers
— Méthodes d'essai des caractéristiques spectrales des lasers
Reference number
ISO 13695:2024(en) © ISO 2024
ISO 13695:2024(en)
© ISO 2024
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
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 13695:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 7
5 Traceability . 8
6 Measurement of wavelength and bandwidth . 9
6.1 General .9
6.1.1 Preparations .9
6.1.2 Common laser types .9
6.2 Types of measurements .9
6.2.1 General .9
6.2.2 Low accuracy measurements .10
6.2.3 Medium accuracy measurements .10
6.2.4 High accuracy measurements .10
6.3 Equipment selection .10
6.4 Measurements in air .11
6.5 Measurements at low resolution . 12
6.5.1 Principle . 12
6.5.2 Measurement procedure . 12
6.5.3 Analysis . 13
6.6 Measurement at higher resolution . . 13
6.6.1 General . 13
6.6.2 Preliminary test . 13
6.6.3 Measurement with a grating spectrometer .14
6.6.4 Measurement with an interferometer .14
6.6.5 Measurement with photoelectric mixing methods . 15
−5 −4
6.6.6 Analysis for medium accuracy U /λ = U /ν in the range 10 to 10 .16
λ ν
−5
6.6.7 Analysis for high accuracy U /λ = U /ν < 10 .16
λ ν
7 Measurement of wavelength stability. 17
7.1 Dependence of the wavelength on operating conditions .17
7.2 Wavelength stability of a single frequency laser .17
8 Test report . 17
Annex A (informative) Refractive index of air .20
Annex B (informative) Criteria for the choice of a grating monochromatorand its
accessories — Calibration .21
Annex C (informative) Criteria for the choice of a Fabry-Perot interferometer .24
Bibliography .25

iii
ISO 13695:2024(en)
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 interested 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 Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of I
...