EN IEC 60793-1-45:2018

Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field diameter

NEW!IEC 60793-1-45:2017 is available as IEC 60793-1-45:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60793-1-45:2017 establishes uniform requirements for measuring the mode field diameter (MFD) of single-mode optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. This second edition cancels and replaces the first edition published in 2001. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - improvement of the description of measurement details for B6 fibre; - correction of Equations (1), (2), (5) and (6); - correction of Table E.1, Table E.2 and Table E.3. Keywords: mode field diameter (MFD)

Lichtwellenleiter - Teil 1-45: Messmethoden und Prüfverfahren - Modenfelddurchmesser

Fibre optiques - Partie 1-45: Méthodes de mesure et procédures d'essai - Diamètre du champ de mode

NEW!IEC 60793-1-45:2017 est disponible sous forme de IEC 60793-1-45:2017 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 60793-1-45:2017 établit des exigences uniformes pour mesurer le diamètre du champ de mode (DCM) d'une fibre optique unimodale, contribuant ainsi au contrôle des fibres et câbles à des fins commerciales. Cette deuxième édition annule et remplace la première édition parue en 2001. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - amélioration de la description des détails relatifs à la mesure de la fibre de catégorie B6; - correction des Équations (1), (2), (5) et (6); - correction du Tableau E.1, Tableau E.2 et Tableau E.3. Mots-clés: diamètre du champ de mode (DCM)

Optična vlakna - 1-45. del: Metode merjenja in preskusni postopki - Premer polja načina (IEC 60793-1-45:2017)

Ta del standarda IEC 60793 določa enotne zahteve za merjenje premera polja načina (MFD) enorodnih optičnih vlaken, pri čemer pomaga pri pregledu vlaken in kablov za komercialne namene.

General Information

• Status: Published
• Publication Date: 08-Feb-2018
• Withdrawal Date: 13-Dec-2020
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: CLC/TC 86A - Optical fibres and optical fibre cables
• Drafting Committee: IEC/SC 86A - IEC_SC_86A
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 09-Feb-2018
• Completion Date: 09-Feb-2018
• Ref Project: SIST EN IEC 60793-1-45:2018 - Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field diameter (IEC 60793-1-45:2017)

Relations

• Replaces: EN 60793-1-45:2003 - Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field diameter
• Effective Date: 26-Jan-2023
• Replaced By: EN IEC 60793-1-45:2024 - Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field diameter
• Effective Date: 31-May-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2018
1DGRPHãþD
SIST EN 60793-1-45:2004
2SWLþQDYODNQDGHO0HWRGHPHUMHQMDLQSUHVNXVQLSRVWRSNL3UHPHUSROMD
QDþLQD,(&
Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field
diameter (IEC 60793-1-45:2017)
Ta slovenski standard je istoveten z: EN IEC 60793-1-45:2018
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 IEC 60793-1-45

NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2018
ICS 33.180.10 Supersedes EN 60793-1-45:2003
English Version
Optical fibres - Part 1-45: Measurement methods and test
procedures - Mode field diameter
(IEC 60793-1-45:2017)
Fibre optiques - Partie 1-45: Méthodes de mesure et Lichtwellenleiter - Teil 1-45: Messmethoden - Messung des
procédures d'essai - Diamètre du champ de mode Modenfelddurchmessers
(IEC 60793-1-45:2017) (IEC 60793-1-45:2017)
This European Standard was approved by CENELEC on 2017-12-14. 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, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60793-1-45:2018 E

European foreword
The text of document 86A/1758/CDV, future edition 2 of IEC 60793-1-45, prepared by IEC/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 IEC 60793-1-45:2018.

The following dates are fixed:
• latest date by which the document has to be (dop) 2018-09-14
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2020-12-14
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60793-1-45:2003.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 60793-1-45:2017 was approved by CENELEC as a
European Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60793-1-40 2001 Optical fibres -- Part 1-40: Measurement EN 60793-1-40 2003
(mod) methods and test procedures - Attenuation
IEC 60793-2 -  Optical fibres -- Part 2: Product - -
specifications.
IEC 60793-1-45 ®
Edition 2.0 2017-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibres –
Part 1-45: Measurement methods and test procedures – Mode field diameter

Fibres optiques –
Partie 1-45: Méthodes de mesure et procédures d'essai – Diamètre du champ de

mode
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-4979-6

– 2 – IEC 60793-1-45:2017 © IEC 2017
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General consideration about mode field diameter . 7
5 Reference test method . 8
6 Apparatus . 8
6.1 General . 8
6.2 Light source . 8
6.3 Input optics . 9
6.4 Input positioner . 9
6.5 Cladding mode stripper . 9
6.6 High-order mode filter . 9
6.7 Output positioner . 9
6.8 Output optics . 9
6.9 Detector . 9
6.10 Computer . 9
7 Sampling and specimens . 10
7.1 Specimen length . 10
7.2 Specimen end face . 10
8 Procedure . 10
9 Calculations . 10
9.1 Basic equations . 10
9.2 Method A – Direct far-field scan . 10
9.3 Method B – Variable aperture in the far field . 11
9.4 Method C – Near-field scan . 11
10 Results . 12
10.1 Information available with each measurement . 12
10.2 Information available upon request . 12
11 Specification information . 12
Annex A (normative) Requirements specific to method A – Mode field diameter by
direct far-field scan . 14
A.1 Apparatus . 14
A.1.1 General . 14
A.1.2 Scanning detector assembly – Signal detection electronics . 14
A.1.3 Computer. 14
A.2 Procedure . 15
A.3 Calculations . 15
A.3.1 Determine folded power curve . 15
A.3.2 Compute the top (T) and bottom (B) integrals of Equation (1) . 15
A.3.3 Complete the calculation . 15
A.4 Sample data . 16
Annex B (normative) Requirements specific to method B – Mode field diameter by
variable aperture in the far field . 17
B.1 Apparatus . 17

IEC 60793-1-45:2017 © IEC 2017 – 3 –
B.1.1 General . 17
B.1.2 Output variable aperture assembly . 17
B.1.3 Output optics system . 18
B.1.4 Detector assembly and signal detection electronics . 18
B.2 Procedure . 18
B.3 Calculations . 18
B.3.1 Determine complementary aperture function . 18
B.3.2 Complete the integration . 19
B.3.3 Complete the calculation . 19
B.4 Sample data . 19
Annex C (normative) Requirements specific to method C – Mode field diameter by
near-field scan . 20
C.1 Apparatus . 20
C.1.1 General . 20
C.1.2 Magnifying output optics . 20
C.1.3 Scanning detector . 20
C.1.4 Detection electronics . 21
C.2 Procedure . 21
C.3 Calculations . 21
C.3.1 Calculate the centroid . 21
C.3.2 Fold the intensity profile . 22
C.3.3 Compute the integrals . 22
C.3.4 Complete the calculation . 22
C.4 Sample data . 23
Annex D (normative) Requirements specific to method D – Mode field diameter by
optical time domain reflectometer (OTDR) . 24
D.1 General .
...