IEC 60793-1-48:2007

Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode dispersion

Applies to three methods of measuring polarization mode dispersion (PMD). Establishes uniform requirements for measuring the PMD of single-mode optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. In this edition, reference to IEC 61282-9 has resulted in the removal of Annexes E, F, G and H as well as the creation of a new Annex E.

Fibres optiques - Partie 1-48: Méthodes de mesure et procédures d'essai - Dispersion du mode de polarisation

S'appliques aux trois méthodes de mesure de la dispersion de mode de polarisation (Polarization Mode Dispersion, PMD). Elle établit des exigences uniformes pour mesurer la PMD d'une fibre optique unimodale, de façon à aider dans l'examen des fibres et des câbles à des fins commerciales. Dans cette édition, la référence à la CEI 61289-2 a entraîné le retrait des Annexes E, F, G et H ainsi que la création d'une nouvelle Annexe E.

General Information

• Status: Published
• Publication Date: 05-Jun-2007
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: SC 86A - Fibres and cables
• Drafting Committee: WG 1 - TC 86/SC 86A/WG 1
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 23-Aug-2017

Relations

• Revises: IEC 60793-1-48:2003 - Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode dispersion
• Effective Date: 05-Sep-2023
• Revised: IEC 60793-1-48:2017 - Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode dispersion
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
CEI
60793-1-48
NORME
Second edition
INTERNATIONALE
Deuxième édition
2007-06
Optical fibres –
Part 1-48:
Measurement methods and test procedures –
Polarization mode dispersion
Fibres optiques –
Partie 1-48:
Méthodes de mesure et procédures d’essai –
Dispersion du mode de polarisation
Reference number
Numéro de référence
IEC/CEI 60793-1-48:2007
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: [e-mail]
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: [e-mail]
Tel.: [phone]
Fax: [phone]
A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
ƒ Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm
Le Catalogue en-ligne de la CEI vous permet d’effectuer des recherches en utilisant différents critères (numéro de
référence, texte, comité d’études,…). Il donne aussi des informations sur les projets et les publications retirées ou
remplacées.
ƒ Just Published CEI: www.iec.ch/online_news/justpub
Restez informé sur les nouvelles publications de la CEI. Just Published détaille deux fois par mois les nouvelles
publications parues. Disponible en-ligne et aussi par email.
ƒ Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm
Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du
Service clients ou contactez-nous:
Email: [e-mail]
Tél.: [phone]
Fax: [phone]
INTERNATIONAL IEC
STANDARD
CEI
60793-1-48
NORME
Second edition
INTERNATIONALE
Deuxième édition
2007-06
Optical fibres –
Part 1-48:
Measurement methods and test procedures –
Polarization mode dispersion
Fibres optiques –
Partie 1-48:
Méthodes de mesure et procédures d’essai –
Dispersion du mode de polarisation
PRICE CODE
X
CODE PRIX
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
Pour prix, voir catalogue en vigueur

– 2 – 60793-1-48 © IEC:2007
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references .7
3 Terms and definitions .8
4 General .8
4.1 Methods for measuring PMD .8
4.2 Reference test method .10
4.3 Applicability.10
5 Apparatus.11
5.1 Light source and polarizers .11
5.2 Input optics .11
5.3 Input positioner .12
5.4 Cladding mode stripper .12
5.5 High-order mode filter.12
5.6 Output positioner.12
5.7 Output optics.12
5.8 Detector .12
5.9 Computer .12
6 Sampling and specimens.12
6.1 General .12
6.2 Specimen length.13
6.3 Deployment .13
7 Procedure .14
8 Calculation or interpretation of results .14
9 Documentation .14
9.1 Information required for each measurement .14
9.2 Information to be available .14
10 Specification information .15

Annex A (normative) Fixed analyser measurement method .16
Annex B (normative) Stokes evaluation method .27
Annex C (normative) Interferometry method.32
Annex D (informative) Determination of RMS width from a fringe envelope .42
Annex E (informative) Glossary of symbols .46

Bibliography.48

Figure A.1 – Block diagrams for Method A .16
Figure A.2 – Typical results from Method A.19
Figure A.3 – PMD by Fourier analysis .22
Figure A.4 – Cross-correlation and autocorrelation functions .26

60793-1-48 © IEC:2007 – 3 –
Figure B.1 – Block diagram for Method B .27
Figure B.2 – Typical random-mode-coupling results from Method B .29
Figure B.3 – Typical histogram of DGD values .29
Figure C.1 – Schematic diagram for Method C (generic implementation).32
Figure C.2 – Other schematic diagrams for Method C .34
Figure C.3a – Random mode-coupling using a TINTY-based measurement system
with one I/O SOP .37
Figure C.3b – Negligible mode-coupling using a TINTY-based measurement system
with one I/O SOP .37
Figure C.3 – Fringe envelopes for negligible and random polarization mode-coupling .37
Figure C.4a – Random mode-coupling using a GINTY-based measurement system
with I/O-SOP scrambling.38
Figure C.4b – Negligible mode-coupling using a GINTY-based measurement system
with I/O-SOP scrambling.38
Figure C.4c – Mixed mode-coupling using a GINTY-based measurement system with
I/O-SOP scrambling .39
Figure C.4 – Fringe envelopes for negligible and random polarization mode-coupling
(Ginty procedure).39
Figure D.1 – Parameters for interferogram analysis .42

Table A.1 – Cosine transform calculations .25

– 4 – 60793-1-48 © IEC:2007
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRES –
Part 1-48: Measurement methods and test procedures –
Polarization mode dispersion
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use
...