SIST EN ISO 24013:2023
(Main)Optics and photonics - Lasers and laser-related equipment - Measurement of phase retardation of optical components for polarized laser radiation (ISO 24013:2023)
Optics and photonics - Lasers and laser-related equipment - Measurement of phase retardation of optical components for polarized laser radiation (ISO 24013:2023)
This document specifies test methods for the determination of the linear optical phase retardation of optical components by polarized laser beams.
Optik und Photonik – Laser und Laseranlagen – Messung der Phasenverschiebung optischer Komponenten für polarisierte Laserstrahlung (ISO 24013:2023)
Optique et photonique - Lasers et équipements associés aux lasers - Mesurage du retard de phase des composants optiques pour le rayonnement laser polarisé (ISO 24013:2023)
Le présent document spécifie des méthodes d'essai pour la détermination du retard de phase optique linéaire de composants optiques par rapport aux faisceaux laser polarisés.
Optika in fotonska tehnologija - Laserji in laserska oprema - Merjenje faznega zamika optičnih komponent za polarizirano lasersko sevanje (ISO 24013:2023)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 24013:2023
01-oktober-2023
Nadomešča:
SIST EN ISO 24013:2007
Optika in fotonska tehnologija - Laserji in laserska oprema - Merjenje faznega
zamika optičnih komponent za polarizirano lasersko sevanje (ISO 24013:2023)
Optics and photonics - Lasers and laser-related equipment - Measurement of phase
retardation of optical components for polarized laser radiation (ISO 24013:2023)
Optik und Photonik – Laser und Laseranlagen – Messung der Phasenverschiebung
optischer Komponenten für polarisierte Laserstrahlung (ISO 24013:2023)
Optique et photonique - Lasers et équipements associés aux lasers - Mesurage du
retard de phase des composants optiques pour le rayonnement laser polarisé (ISO
24013:2023)
Ta slovenski standard je istoveten z: EN ISO 24013:2023
ICS:
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
SIST EN ISO 24013:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 24013:2023
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SIST EN ISO 24013:2023
EN ISO 24013
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2023
EUROPÄISCHE NORM
ICS 31.260 Supersedes EN ISO 24013:2006
English Version
Optics and photonics - Lasers and laser-related equipment
- Measurement of phase retardation of optical components
for polarized laser radiation (ISO 24013:2023)
Optique et photonique - Lasers et équipements Optik und Photonik - Laser und Laseranlagen -
associés aux lasers - Mesurage du retard de phase des Messung der Phasenverschiebung optischer
composants optiques pour le rayonnement laser Komponenten für polarisierte Laserstrahlung (ISO
polarisé (ISO 24013:2023) 24013:2023)
This European Standard was approved by CEN on 10 December 2022.
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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 24013:2023 E
worldwide for CEN national Members.
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SIST EN ISO 24013:2023
EN ISO 24013:2023 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 24013:2023
EN ISO 24013:2023 (E)
European foreword
This document (EN ISO 24013:2023) 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 January 2024, and conflicting national standards shall
be withdrawn at the latest by January 2024.
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 24013:2006.
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 24013:2023 has been approved by CEN as EN ISO 24013:2023 without any modification.
3
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SIST EN ISO 24013:2023
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SIST EN ISO 24013:2023
INTERNATIONAL ISO
STANDARD 24013
Second edition
2023-06
Optics and photonics — Lasers
and laser-related equipment —
Measurement of phase retardation of
optical components for polarized laser
radiation
Optique et photonique — Lasers et équipements associés aux lasers
— Mesurage du retard de phase des composants optiques pour le
rayonnement laser polarisé
Reference number
ISO 24013:2023(E)
© ISO 2023
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SIST EN ISO 24013:2023
ISO 24013:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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 2023 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 24013:2023
ISO 24013:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.1
5 Measurement principle . 2
6 Preparation of test sample and measuring arrangement . 3
6.1 General . 3
6.2 Laser beam preparation . 3
6.3 Sample adjustment and system calibration . 3
6.3.1 Reflective samples . 3
6.3.2 Possible alignment procedure . 4
6.3.3 Transmissive samples . 4
6.4 Detection system . 4
6.4.1 General . 4
6.4.2 Polarization analyser . 4
6.4.3 Power detector . 4
7 Test procedure .5
7.1 Test procedure for zero or π phase retardation . 5
7.1.1 General . 5
7.1.2 Simple test procedure for zero absorptance difference . 5
7.1.3 Test procedure for non zero absorptance difference . 5
7.2 Test procedure for π/2 phase retardation . 5
7.2.1 General . 5
7.2.2 Simple test procedure for zero absorptance difference . 5
7.2.3 Test procedure for non zero absorptance difference . 5
8 Evaluation . 6
8.1 General . 6
8.2 Evaluation for zero phase retardation . 6
8.2.1 Evaluation for zero absorptance difference . 6
8.2.2 Evaluation for non-zero absorptance difference . 6
8.3 Evaluation for π/2 phase retardation . 6
8.3.1 Evaluation for zero absorptance difference . 6
8.3.2 Evaluation for non-zero absorptance difference . 6
9 Test report . 6
Annex A (informative) Theoretical background . 8
Bibliography .16
iii
© ISO 2023 – All rights reserved
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SIST EN ISO 24013:2023
ISO 24013:2023(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.
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 ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 172, Optics and Photonics, Subcommittee
SC 9, Laser and electro-optical systems, in collaboration with the European Committee for Standardization
(CEN) Technical Committee CEN/TC 123, Lasers and photonics, in accordance with the agreement on
technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 24013:2006), which has been technically
revised.
The main changes are as follows:
— 6.3.3 was amended to add an additional step requiring that a transmitting optic be aligned so that
its optical axis is horizontal;
— Clauses 2 and 6.1 were amended to reflect that ISO 14644-1:1999 does not need the year;
— 6.3.1, (π/4 ± 2) mrad was changed to π/4 rad ± 2 mrad;
— 7.1 and 8.1 were updated to account for phase retardances close to π.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
© ISO 2023 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 24013:2023
ISO 24013:2023(E)
Introduction
Normally it is desirable that the state of polarization be not influenced by the optical components used.
For the generation or maintenance of specific states of polarization the influence of optical components
on the beam polarization is crucial. For generating circularly polarized radiation from linearly polarized
radiation π/2 phase retarders are used.
This document describes methods to determine the relative phase retardation of optical components
with respect to the X- and Y-axes of the polarization and s- and p-polarization, respectively. This
document is necessary for optics manufacturers, suppliers and customers of such optics for the
determination of the influence of phase retardation of optical components.
v
© ISO 2023 – All rights reserved
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SIST EN ISO 24013:2023
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SIST EN ISO 24013:2023
INTERNATIONAL STANDARD ISO 24013:2023(E)
Optics and photonics — Lasers and laser-related
equipment — Measurement of phase retardation of optical
components for polarized laser radiation
1 Scope
This document specifies test methods for the determination of the linear optical phase retardation of
optical components by polarized laser beams.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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, Optics and photonics — Lasers and laser-related equipment — Vocabulary and symbols
ISO 12005, Lasers and laser-related equipment — Test methods for laser beam parameters — Polarization
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 11145 and ISO 12005 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Symbols and abbreviated terms
Table 1 — Symbols used and units of measure
Symbol Term Unit
p degree of linear polarization 1
L
ϕ angle of analyser rad
a amplitude of electric field in X-direction V/m
1
a amplitude of electric field in Y-direction V/m
2
a, b principal axes of the polarization ellipse V/m
δ phase difference rad
Δδ phase retardation rad
E electric field vector amplitude V/m
P radiant power W
α absorptance in X-direction 1
X
α absorptance in Y-direction 1
Y
ψ angle of the principle axis of the polarization ellipse rad
1
© ISO 2023 – All rights reserved
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SIST EN ISO 24013:2023
ISO 24013:2023(E)
5 Measurement principle
The optical component under test is irradiated by a laser beam with a defined state of polarization.
After passing the component the state of polarization of the beam is determined by using an analyser.
The phase retardation is then evaluated from the change of the state of polarization.
There are two cases to distinguish:
a) the expected phase retardation is near zero: in this case a circularly polarized beam shall be used
for the test;
b) the expected phase retardation is near π/2: in this case a linearly polarized beam shall be used for
the test.
Figure 1 shows the measuring set up.
a) Optical path for reflective samples
b) Optical path for transmissive samples
Key
1 radiation source
2 polarizer (linear or circular)
3 sample under test
4 analyser
5 detector
6 alignment laser
7 positional sensitive detector
Figure 1 — Schematic drawing of the measuring set up
A laser and a polarizer generating linearly or circularly polarized radiation shall be used in combination
with an analyser and a power detector. For measuring reflective samples an alignment laser in
combination with a positional sensitive detector ensures a reproducible angle alignment of the sample
under test.
2
© ISO 2023 – All rights reserved
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SIST EN ISO 24013:2023
ISO
...
SLOVENSKI STANDARD
oSIST prEN ISO 24013:2022
01-oktober-2022
Optika in fotonska tehnologija - Laserji in laserska oprema - Merjenje faznega
zamika optičnih komponent za polarizirano lasersko sevanje (ISO/DIS 24013:2022)
Optics and photonics - Lasers and laser-related equipment - Measurement of phase
retardation of optical components for polarized laser radiation (ISO/DIS 24013:2022)
Optik und Photonik – Laser und Laseranlagen – Messung der Phasenverschiebung
optischer Komponenten für polarisierte Laserstrahlung (ISO/DIS 24013:2022)
Optique et photonique - Lasers et équipements associés aux lasers - Mesurage du
retard de phase des composants optiques pour le rayonnement laser polarisé (ISO/DIS
24013:2022)
Ta slovenski standard je istoveten z: prEN ISO 24013
ICS:
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
oSIST prEN ISO 24013:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 24013:2022
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oSIST prEN ISO 24013:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 24013
ISO/TC 172/SC 9 Secretariat: DIN
Voting begins on: Voting terminates on:
2022-08-17 2022-11-09
Optics and photonics — Lasers and laser-related
equipment — Measurement of phase retardation of optical
components for polarized laser radiation
Optique et photonique — Lasers et équipements associés aux lasers — Mesurage du retard de phase des
composants optiques pour le rayonnement laser polarisé
ICS: 31.260
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 24013:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
---------------------- Page: 3 ----------------------
oSIST prEN ISO 24013:2022
ISO/DIS 24013:2022(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 24013
ISO/TC 172/SC 9 Secretariat: DIN
Voting begins on: Voting terminates on:
Optics and photonics — Lasers and laser-related
equipment — Measurement of phase retardation of optical
components for polarized laser radiation
Optique et photonique — Lasers et équipements associés aux lasers — Mesurage du retard de phase des
composants optiques pour le rayonnement laser polarisé
ICS: 31.260
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2022
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 24013:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
© ISO 2022 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
---------------------- Page: 4 ----------------------
oSIST prEN ISO 24013:2022
ISO/DIS 24013:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.1
5 Measurement principle . 2
6 Preparation of test sample and measuring arrangement . 3
6.1 General . 3
6.2 Laser beam preparation . 3
6.3 Sample adjustment and system calibration . 3
6.3.1 Reflective samples . 3
6.3.2 Possible alignment procedure . 4
6.3.3 Transmissive samples . 4
6.4 Detection system . 4
6.4.1 General . 4
6.4.2 Polarization analyser . 4
6.4.3 Power detector . 4
7 Test procedure .5
7.1 Test procedure for zero or ππ phase retardation . 5
7.1.1 General . 5
7.1.2 Simple test procedure for zero absorptance difference . 5
7.1.3 Test procedure for non zero absorptance difference . 5
7.2 Test procedure for π/2 phase retardation . 5
7.2.1 General . 5
7.2.2 Simple test procedure for zero absorptance difference . 5
7.2.3 Test procedure for non zero absorptance difference . 5
8 Evaluation . 6
8.1 General . 6
8.2 Evaluation for zero phase retardation . 6
8.2.1 Evaluation for zero absorptance difference . 6
8.2.2 Evaluation for non-zero absorptance difference . 6
8.3 Evaluation for π/2 phase retardation . 6
8.3.1 Evaluation for zero absorptance difference . 6
8.3.2 Evaluation for non-zero absorptance difference . 6
9 Test report . 6
Annex A (informative) Theoretical background. 8
Bibliography .16
iii
© ISO 2022 – All rights reserved
---------------------- Page: 5 ----------------------
oSIST prEN ISO 24013:2022
ISO/DIS 24013:2022(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.
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 ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 172, Optics and Photonics, Subcommittee
SC 9, Laser and electro-optical systems.
This second edition cancels and replaces the first edition (ISO 24013:2006), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— Clause 6.3.3 was amended to add an additional step requiring that a transmitting optic be aligned
so that its optical axis is horizontal.
— Clauses 2 and 6.1 were amended to reflect that ISO 14644-1:1999 does not need the year.
— Clause 6.3.1, (π/4 ± 2) mrad was changed to π/4 rad ± 2 mrad.
— Clauses 7.1 and 8.1 were updated to account for phase retardances close to π.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
© ISO 2022 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 24013:2022
ISO/DIS 24013:2022(E)
Introduction
Normally it is desirable that the state of polarization be not influenced by the optical components used.
For the generation or maintenance of specific states of polarization the influence of optical components
on the beam polarization is crucial. For generating circularly polarized radiation from linearly polarized
radiation π/2 phase retarders are used.
This document describes methods to determine the relative phase retardation of optical components
with respect to the x- and y-axes of the polarization and s- and p-polarization, respectively. This
document is necessary for optics manufacturers, suppliers and customers of such optics for the
determination of the influence of phase retardation of optical components.
v
© ISO 2022 – All rights reserved
---------------------- Page: 7 ----------------------
oSIST prEN ISO 24013:2022
---------------------- Page: 8 ----------------------
oSIST prEN ISO 24013:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 24013:2022(E)
Optics and photonics — Lasers and laser-related
equipment — Measurement of phase retardation of optical
components for polarized laser radiation
1 Scope
This document specifies test methods for the determination of the linear optical phase retardation of
optical components by polarized laser beams.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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, Optics and photonics — Lasers and laser-related equipment — Vocabulary and symbols
ISO 12005, Lasers and laser-related equipment — Test methods for laser beam parameters — Polarization
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 11145 and ISO 12005 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Symbols and abbreviated terms
Table 1 — Symbols used and units of measure
Symbol Unit Term
p 1 degree of linear polarization
L
ϕ rad angle of analyser
a V/m amplitude of electric field in x-direction
1
a V/m amplitude of electric field in y-direction
2
a, b V/m principal axes of the polarization ellipse
δ rad phase difference
Δδ rad phase retardation
E V/m electric field vector amplitude
P W radiant power
α 1 absorptance in x-direction
x
α 1 absorptance in y-direction
y
ψ rad angle of the principle axis of the polarization ellipse
1
© ISO 2022 – All rights reserved
---------------------- Page: 9 ----------------------
oSIST prEN ISO 24013:2022
ISO/DIS 24013:2022(E)
5 Measurement principle
The optical component under test is irradiated by a laser beam with a defined state of polarization.
After passing the component the state of polarization of the beam is determined by using an analyser.
The phase retardation is then evaluated from the change of the state of polarization.
There are two cases to distinguish:
a) the expected phase retardation is near zero: in this case a circularly polarized beam shall be used
for the test;
b) the expected phase retardation is near π/2: in this case a linearly polarized beam shall be used for
the test.
Figure 1 shows the measuring set up.
a) Optical path for reflective samples
b) Optical path for transmissive samples
Key
1 radiation source
2 polarizer (linear or circular)
3 sample under test
4 analyser
5 detector
6 alignment laser
7 positional sensitive detector
Figure 1 — Schematic drawing of the measuring set up
A laser and a polarizer generating linearly or circularly polarized radiation shall be used in combination
with an analyser and a power detector. For measuring reflective samples an alignment laser in
combination with a positional sensitive detector ensures a reproducible angle alignment of the sample
under test.
2
© ISO 2022 – All rights reserved
---------------------- Page: 10 ----------------------
oSIST prEN ISO 24013:2022
ISO/DIS 24013:2022(E)
6 Preparation of test sample and measuring arrangement
6.1 General
Storage, cleaning and the preparation of the test samples are carried out in accordance with the
manufacturer's instructions for normal use.
The environment of the testing place consists of dust-free filtered air with between 40 % and 60 %
relative humidity. It is recommended that the residual dust be reduced in accordance with, for example,
the clean-room ISO class 7 as defined in ISO 14644-1.
A linearly polarized and monochromatic source, such as a laser, shall be used as the radiation source. To
keep errors as low as possible, the beam power stability should be as high as possible.
Wavelength, angle of incidence and state of polarization of the laser radiation used for the measurement
shall correspond to the values specified by the manufacturer for the use of the test sample. If ranges
are accepted for these three quantities, any combination of wavelength, angle of incidence and state of
polarization may be chosen from these ranges.
6.2 Laser beam preparation
The accuracy of the measurement is stro
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