EN 60793-1-42:2013

SLOVENSKI STANDARD
01-januar-2014
2SWLþQDYODNQDGHO0HWRGHPHUMHQMDLQSUHVNXVQLSRVWRSNL.URPDWLþQD
GLVSHU]LMD
Optical fibres - Part 1-42: Measurement methods and test procedures - Chromatic
dispersion
Lichtwellenleiter - Teil 1-42: Messmethoden und Prüfverfahren - Chromatische
Dispersion
Fibres optiques - Partie 1-42: Méthodes de mesure de la dispersion chromatique
Ta slovenski standard je istoveten z: EN 60793-1-42:2013
ICS:
33.180.10 2SWLþQDYODNQDLQNDEOL Fibres and cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60793-1-42
NORME EUROPÉENNE
April 2013
EUROPÄISCHE NORM
ICS 33.180.10 Supersedes EN 60793-1-42:2007

English version
Optical fibres -
Part 1-42: Measurement methods and test procedures -
Chromatic dispersion
(IEC 60793-1-42:2013)
Fibres optiques -  Lichtwellenleiter -
Partie 1-42: Méthodes de mesure Teil 1-42: Messmethoden
et procédures d’essai - und Prüfverfahren -
Dispersion chromatique Chromatische Dispersion
(CEI 60793-1-42:2013) (IEC 60793-1-42:2013)

This European Standard was approved by CENELEC on 2013-02-28. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60793-1-42:2013 E
Foreword
The text of document 86A/1419/CDV, future edition 3 of IEC 60793-1-42, prepared by SC 86A "Fibres
and cables” of IEC/TC 86 “Fibre optics" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 60793-1-42:2013.

The following dates are fixed:
(dop) 2013-11-28
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2016-02-28
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60793-1-42:2007.

EN 60793 1-42:2007:
a) the inclusion of category B6 single-mode fibres;
b) the deletion of test method D (interferometry).

This standard should be read in conjunction with EN 60793-1-1.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60793-1-42:2013 was approved by CENELEC as a
European Standard without any modification.

- 3 - EN 60793-1-42:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60793-1-1 2008 Optical fibres - EN 60793-1-1 2008
Part 1-1: Measurement methods and test
procedures - General and guidance

IEC 60793-1-41 - Optical fibres - EN 60793-1-41 -
Part 1-41: Measurement methods and test
procedures - Bandwidth
IEC 60793-2 - Optical fibres - EN 60793-2 -
Part 2: Product specifications - General

IEC 60793-1-42 ®
Edition 3.0 2013-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibres –
Part 1-42: Measurement methods and test procedures – Chromatic dispersion

Fibres optiques –
Partie 1-42: Méthodes de mesure et procédures d’essai – Dispersion

chromatique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 33.180.10 ISBN 978-2-83220-576-1

– 2 – 60793-1-42 © IEC:2013
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 7
3 Overview of methods . 7
3.1 Method A, phase shift . 7
3.2 Method B, spectral group delay in the time domain . 7
3.3 Method C, differential phase shift . 7
4 Reference test methods . 8
4.1 Category A1 and sub-category A4f, A4g and A4h multimode fibres . 8
4.2 Class B single-mode fibres . 8
5 Apparatus . 8
5.1 General . 8
5.2 Launch optics . 8
5.3 High-order mode filter (single-mode) . 8
5.4 Input positioning apparatus . 8
5.5 Output positioning apparatus . 8
5.6 Computation equipment . 9
6 Sampling and specimens . 9
6.1 Specimen length . 9
6.2 Specimen end face . 9
6.3 Reference fibre. 9
7 Procedure. 9
8 Calculations . 9
8.1 General . 9
8.2 Category A1 and sub-category A4f, A4g, A4h multimode fibres and category
B1.1, B1.3 and sub-category B6_a1 and B6_a2 single-mode fibres . 10
8.3 Category B1.2 single-mode fibres . 10
8.4 Category B2 single-mode fibres . 10
8.5 Category B4 and B5 single-mode fibres . 11
9 Results . 11
9.1 Report the following information with each measurement: . 11
9.2 The following information shall be available upon request: . 11
10 Specification information . 11
Annex A (normative) Requirements specific to method A, phase-shift . 12
Annex B (normative) Requirements specific to method B, spectral group delay in the
time domain . 17
Annex C (normative) Requirements specific to method C, differential phase-shift . 21
Annex D (normative) Chromatic dispersion fitting . 26
Bibliography . 28

Figure A.1 – Chromatic dispersion measurement set, multiple laser system (typical) . 13
Figure A.2 – Typical delay and dispersion curves . 13
Figure A.3 – Chromatic dispersion measurement set, LED system (typical) . 15
Figure B.1 – Block diagram, fibre Raman laser system . 18
Figure B.2 – Block diagram, multiple laser diode system . 18

60793-1-42 © IEC:2013 – 3 –
Figure C.1 – Chromatic differential phase dispersion measurement set, multiple laser
system . 22
Figure C.2 – Chromatic differential phase dispersion measurement set, LED system . 23
Figure C.3 – Chromatic dispersion measurement set, differential phase by dual
wavelength method . 23
Figure C.4 – Chromatic dispersion measurement set, differential phase by double
demodulation . 24

Table D.1 – Definition of fit types and fit coefficients; equations for group delay and
dispersion coefficient . 26
Table D.2 – Slope equations . 26
Table D.3 – Zero-dispersion wavelength and slope equations . 27

– 4 – 60793-1-42 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRES –
Part 1-42: Measurement methods and test procedures –
Chromatic 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 resp
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