EN 60793-1-20:2014
(Main)Optical fibres - Part 1-20: Measurement methods and test procedures - Fibre geometry
Optical fibres - Part 1-20: Measurement methods and test procedures - Fibre geometry
IEC 60793-1-20:2014 establishes uniform requirements for measuring the geometrical characteristics of uncoated optical fibres. The geometry of uncoated optical fibres directly affect splicing, connectorization and cabling and so are fundamental parameters requiring careful specification, quality control, and thus measurement. This second edition cancels and replaces the first edition, published in 2001, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the reference test method for all fibre types is changed to the video grey scale transmitted near field method from the refracted near field method; - the test lengths for all fibre types are now to be specified in the fibre's detail specification; - the core illumination wavelength for all multimode fibre types may now to be specified in the fibre's detail specification although defaults are given; - the core k-factor (decision level) is now to be specified in the detail specification for all multimode fibre types; - this edition is substantially more specific in describing the measurement; - data reduction and transformation is fully described; - the data reduction methodology for both refracted near-field and transmitted near-field methods are now unified and consistent. Keywords: measuring the geometrical characteristics of uncoated optical fibres
Lichtwellenleiter - Teil 1-20: Messmethoden und Prüfverfahren - Fasergeometrie
Fibres optiques - Partie 1-20: Méthodes de mesure et procédures d'essai - Géométrie de la fibre
L'IEC 60793-1-20:2014 établit des exigences uniformes pour mesurer les caractéristiques géométriques des fibres optiques nues. La géométrie des fibres optiques nues affecte directement l'épissurage, le montage des connecteurs (connectorisation) et le câblage et est donc un paramètre fondamental nécessitant une spécification minutieuse, un contrôle qualité et par la même, des mesures. Cette deuxième édition annule et remplace la première édition, publiée en 2001, dont elle constitue une révision technique. Cette édition contient les modifications techniques principales suivantes par rapport à l'édition précédente: - la méthode d'essai de référence pour tous les types de fibres est modifiée de la méthode du champ proche réfracté à la méthode du champ proche transmis sur vidéo en niveaux de gris; - les longueurs d'essai de tous les types de fibres doivent désormais être spécifiées dans la spécification particulière de la fibre; - bien que des valeurs par défaut soient données, la longueur d'onde d'illumination du coeur pour tous les types de fibres multimodales peut désormais être spécifiée dans la spécification particulière de la fibre; - le facteur k appliqué sur le coeur (niveau de décision) doit maintenant être spécifié dans la spécification particulière pour tous les types de fibres multimodales; - la présente édition décrit le mesurage de manière bien plus spécifique; - la réduction et la transformation des données sont décrites de manière exhaustive; - la méthodologie de réduction des données pour la méthode du champ proche réfracté et pour la méthode du champ proche transmis est maintenant unifiée et cohérente. Mots clés: mesurer les caractéristiques géométriques des fibres optiques nues
Optična vlakna - 1-20. del: Metode merjenja in preskusni postopki - Geometrija vlakna (IEC 60793-1-20:2014)
Ta del standarda IEC 60793 uvaja enotne zahteve za merjenje geometrijskih lastnosti neprevlečenih optičnih vlaken.
Geometrija neprevlečenih optičnih vlaken neposredno vpliva na spajanje, konektorizacijo in okablenje; gre za temeljne parametre, ki zahtevajo natančno določitev, nadzor kakovosti in merjenje.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2015
1DGRPHãþD
SIST EN 60793-1-20:2004
2SWLþQDYODNQDGHO 0HWRGHPHUMHQMDLQSUHVNXVQLSRVWRSNL*HRPHWULMD
YODNQD ,(&
Optical fibres -- Part 1-20: Measurement methods and test procedures - Fibre geometry
(IEC 60793-1-20:2014)
Lichtwellenleiter - Teil 1-20: Messmethoden und Prüfverfahren - Fasergeometrie (IEC
60793-1-20:2014)
Fibres optiques -- Partie 1-20: Méthodes de mesure et procédures d'essai - Géométrie
de la fibre (IEC 60793-1-20:2014)
Ta slovenski standard je istoveten z: EN 60793-1-20:2014
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 60793-1-20
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2014
ICS 33.180.10 Supersedes EN 60793-1-20:2002
English Version
Optical fibres - Part 1-20: Measurement methods and test
procedures - Fibre geometry
(IEC 60793-1-20:2014)
Fibres optiques - Partie 1-20: Méthodes de mesure et Lichtwellenleiter - Teil 1-20: Messmethoden und
procédures d'essai - Géométrie de la fibre Prüfverfahren - Fasergeometrie
(CEI 60793-1-20:2014) (IEC 60793-1-20:2014)
This European Standard was approved by CENELEC on 2014-11-14. 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, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60793-1-20:2014 E
Foreword
The text of document 86A/1562/CDV, future edition 1 of IEC 60793-1-20, 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 60793-1-20:2014.
The following dates are fixed:
(dop) 2015-08-14
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2017-11-14
• latest date by which the national standards conflicting with
the document have to be withdrawn
This document supersedes EN 60793-1-20:2002.
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 60793-1-20:2014 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated :
IEC 60793-1-45 NOTE Harmonized as EN 60793-1-45.
- 3 - EN 60793-1-20:2014
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 1 When 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 60793-2-10 - Optical fibres - EN 60793-2-10 -
Part 2-10: Product specifications -
Sectional specification for category A1
multimode fibres
IEC 60793-2-20 - Optical fibres - EN 60793-2-20 -
Part 2-20: Product specifications -
Sectional specification for category A2
multimode fibres
IEC 60793-2-30 - Optical fibres - EN 60793-2-30 -
Part 2-30: Product specifications -
Sectional specification for category A3
multimode fibres
IEC 60793-2-40 - Optical fibres - EN 60793-2-40 -
Part 2-40: Product specifications -
Sectional specification for category A4
multimode fibres
IEC 60793-2-50 - Optical fibres - EN 60793-2-50 -
Part 2-50: Product specifications -
Sectional specification for class B single-
mode fibres
IEC 60793-2-60 - Optical fibres - EN 60793-2-60 -
Part 2-60: Product specifications -
Sectional specification for category C
single-mode intraconnection fibres
IEC 61745 - End-face image analysis procedure for the - -
calibration of optical fibre geometry test
sets
IEC 60793-1-20 ®
Edition 2.0 2014-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibres –
Part 1-20: Measurement methods and test procedures – Fibre geometry
Fibres optiques –
Partie 1-20: Méthodes de mesure et procédures d'essai – Géométrie de la fibre
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 33.180.10 ISBN 978-2-8322-1884-6
– 2 – IEC 60793-1-20:2014 © IEC 2014
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and symbols. 8
4 Overview of method . 10
4.1 General . 10
4.2 Scanning methods . 10
4.2.1 General . 10
4.2.2 One-dimensional scan sources of error . 11
4.2.3 Multidimensional scanning . 12
4.3 Data reduction . 13
4.3.1 Simple combination of few-angle scan sets . 13
4.3.2 Ellipse fitting of several-angle or raster data sets . 13
5 Reference test method . 13
6 Apparatus . 13
7 Sampling and specimens . 13
7.1 Specimen length . 13
7.2 Specimen end face . 13
8 Procedure . 13
9 Calculations . 14
10 Results . 14
11 Specification information . 14
Annex A (normative) Requirements specific to Method A – Refracted near-field. 15
A.1 Introductory remarks . 15
A.2 Apparatus . 15
A.2.1 Typical arrangement . 15
A.2.2 Source . 15
A.2.3 Launch optics . 15
A.2.4 XYZ positioner (scanning stage) . 16
A.2.5 Blocking disc . 16
A.2.6 Collection optics and detector . 17
A.2.7 Computer system . 17
A.2.8 Immersion cell . 17
A.3 Sampling and specimens . 17
A.4 Procedure . 17
A.4.1 Load and centre the fibre . 17
A.4.2 Line scan . 18
A.4.3 Raster scan . 18
A.4.4 Calibration . 18
A.5 Index of refraction calculation . 18
A.6 Calculations . 20
A.7 Results . 20
Annex B (normative) Requirements specific to Method B – Transmitted near-field . 21
B.1 Introductory remarks . 21
IEC 60793-1-20:2014 © IEC 2014 – 3 –
B.2 Apparatus . 21
B.2.1 Typical arrangement . 21
B.2.2 Light sources . 22
B.2.3 Fibre support and positioning apparatus . 23
B.2.4 Cladding mode stripper . 23
B.2.5 Detection . 23
B.2.6 Magnifying optics . 24
B.2.7 Video image monitor (video grey-scale technique) . 25
B.2.8 Computer. 25
B.3 Sampling and specimens . 25
B.4 Procedure . 25
B.4.1 Equipment calibration . 25
B.4.2 Measurement . 25
B.5 Calculations . 27
B.6 Results . 27
Annex C (normative) Edge detection and edge table construction . 28
C.1 Introductory remarks .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.