EN ISO 13697:2006

SLOVENSKI STANDARD
01-julij-2006
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Optics and photonics - Lasers and laser-related equipment - Test methods for specular
reflectance and regular transmittance of optical laser components (ISO 13697:2006)
Optik und Photonik - Laser und Laseranlagen - Prüfverfahren für die spekulare Reflexion
und die gerichtete Transmission von optischen Laserkomponenten (ISO 13697:2006)
Optique et photonique - Lasers et équipements associés aux lasers - Méthodes d'essai
du facteur de réflexion spéculaire et du facteur de transmission des composants
optiques laser (ISO 13697:2006)
Ta slovenski standard je istoveten z: EN ISO 13697:2006
ICS:
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 13697
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2006
ICS 31.260
English Version
Optics and photonics - Lasers and laser-related equipment -
Test methods for specular reflectance and regular transmittance
of optical laser components (ISO 13697:2006)
Optique et photonique - Lasers et équipements associés Optik und Photonik - Laser und Laseranlagen -
aux lasers - Méthodes d'essai du facteur de réflexion Prüfverfahren für den gerichteten Reflexionsgrad und den
spéculaire et du facteur de transmission des composants Transmissionsgrad von optischen Laserkomponenten (ISO
optiques laser (ISO 13697:2006) 13697:2006)
This European Standard was approved by CEN on 13 April 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 obtained 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
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versions.
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Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13697:2006: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 13697:2006) has been prepared by Technical Committee ISO/TC 172
"Optics 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 November 2006, and conflicting national
standards shall be withdrawn at the latest by November 2006.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: 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
The text of ISO 13697:2006 has been approved by CEN as EN ISO 13697:2006 without any
modifications.
INTERNATIONAL ISO
STANDARD 13697
First edition
2006-05-15
Optics and photonics — Lasers and
laser-related equipment — Test methods
for specular reflectance and regular
transmittance of optical laser
components
Optique et photonique — Lasers et équipements associés aux lasers —
Méthodes d'essai du facteur de réflexion spéculaire et du facteur de
transmission des composants optiques laser

Reference number
ISO 13697:2006(E)
©
ISO 2006
ISO 13697:2006(E)
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ii © ISO 2006 – All rights reserved

ISO 13697:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Symbols used and units of measure .2
5 Test and calibration principles.2
5.1 General.2
5.2 Specular reflectance.2
5.3 Transmittance .3
5.4 Calibration .3
6 Preparation of test sample and measuring arrangement.7
6.1 General.7
6.2 Laser beam preparation .8
6.3 Chopper .8
6.4 Detector arrangement .8
7 Characteristic features of the laser beam .9
8 Test procedure.9
8.1 Calibration of the chopper mirror .9
8.2 Specular reflectance for near-normal incidence .10
8.3 Angular dependence of reflectance.11
8.4 Transmittance .12
9 Evaluation.13
9.1 Specular reflectance for near-normal incidence .13
9.2 Angular dependence of reflectance.13
9.3 Transmittance .13
10 Test report .14
Bibliography .16

ISO 13697:2006(E)
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.
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 technical 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 shall not be held responsible for identifying any or all such patent rights.
ISO 13697 was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 9,
Electro-optical systems.
iv © ISO 2006 – All rights reserved

ISO 13697:2006(E)
Introduction
Laser-based optical systems require optical components with greatly enhanced reflectance and/or
transmission characteristics. It is necessary to be able to measure these characteristics precisely. The
measurement procedures in this International Standard have been optimized to allow the measurement of the
specular reflectance and transmittance of the optical components to a high degree of accuracy over a wide
range of values.
INTERNATIONAL STANDARD ISO 13697:2006(E)

Optics and photonics — Lasers and laser-related equipment —
Test methods for specular reflectance and regular
transmittance of optical laser components
1 Scope
This International Standard specifies measurement procedures for the precise determination of the specular
reflectance and regular transmittance of optical laser components. The accuracy of the described test
methods exceeds that of measurement procedures outlined in ISO 15368 by several orders of magnitude.
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 latest edition of the referenced
document (including any amendments) applies.
ISO 31-6, Quantities and units — Part 6: Light and related electromagnetic radiations
ISO 11145, Optics and photonics — Lasers and laser-related equipment — Vocabulary and symbols
ISO 14644-1, Cleanrooms and associated controlled environments — Part 1: Classification of air cleanliness
3 Terms and definitions
For the purpose of this document, the terms and definitions given in ISO 11145 and ISO 31-6 apply.
ISO 13697:2006(E)
4 Symbols used and units of measure
Table 1 — Symbols used and units of measure
Symbol Unit Term
ρ specular reflectance of sample
s
ρ , ρ specular reflectance of chopper, specular reflectance of deflecting mirror
ch m
τ regular transmittance of sample
s
λ m wavelength
P W average power
av
β rad angle of incidence
d m beam diameter on the test sample
f Hz chopper frequency
ch
f Hz frequency of laser power modulation
am
P W power of reference beam
r
P W power of probe beam
p
∆P W power difference between reference beam and probe beam
S signal at frequency of laser power modulation
m
S signal at frequency of laser power modulation, probe beam blocked
mo
∆S signal at frequency, which is the sum or the difference of chopper frequency and power
modulation frequency
∆S signal at frequency, which is the sum or the difference of chopper frequency
...