EN 60793-1-43:2015

Optical fibres - Part 1-43: Measurement methods and test procedures - Numerical aperture measurement

IEC 60793-1-43:2015 establishes uniform requirements for measuring the numerical aperture of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes. The numerical aperture (NA) of categories A1, A2, A3 and A4 multimode fibre is an important parameter that describes a fibre's light-gathering ability. It is used to predict launching efficiency, joint loss at splices, and micro/macrobending performance. The numerical aperture is defined by measuring the far-field pattern (NAff). In some cases the theoretical numerical aperture (NAth) is used in the literature, which can be determined from measuring the difference in refractive indexes between the core and cladding. Ideally these two methods should produce the same value. This second edition of IEC 60793-1-43, together with other standards in the IEC 60793-4X series, cancels and replaces the first edition of IEC 60793-1-43, published in 2001, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - expansion of the scope to include A1, A2, A3 and A4 multimode fibre categories; - addition of measurement parameters of sample length and threshold values, product specific to the variables that are now found in the product specifications; - a new Annex B entitled "Product specific default values for NA measurement"; - addition of a new Technique 4 for measuring NA of A4d fibres; - a new Annex A entitled "Mapping NA measurement to alternative lengths" that gives a mapping function to correlate shorter sample length measurements to the length suggested in the reference test method Naff. Keywords: numerical aperture of optical fibre, inspection of fibres and cables

Lichtwellenleiter - Teil 1-43: Messmethoden und Prüfverfahren - Numerische Apertur

Fibres optiques - Partie 1-43 : Méthodes de mesure et procédures d’essai - Mesure de l’ouverture numérique

IEC 60793-1-43:2015 établit des exigences uniformes pour mesurer l'ouverture numérique d'une fibre optique, contribuant ainsi au contrôle des fibres et câbles dans des relations commerciales. L'ouverture numérique (NA, numerical aperture) d'une fibre multimodale des catégories A1, A2, A3 et A4 est un paramètre important qui décrit la capacité de la fibre à capter le rayonnement lumineux. Il est utilisé pour prévoir l'efficacité de l'injection, les pertes aux épissures et la tenue aux microcourbures et aux macrocourbures. L'ouverture numérique est définie en mesurant le diagramme en champ lointain (NAff). Dans certains cas, l'ouverture numérique théorique (NAth) est utilisée dans la documentation. Elle peut être déterminée en mesurant la différence entre l'indice de réfraction du cœur et celui de la gaine. Idéalement, il convient que ces deux méthodes donnent la même valeur. Cette deuxième édition annule et remplace la première édition parue en 2001, dont elle constitue une révision technique. La présente édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: – élargissement du domaine d'application pour inclure les catégories A1, A2, A3 et A4 de fibres multimodales; – ajout de paramètres de mesure de la longueur des échantillons et de valeurs seuils spécifiques aux produits, aux variables actuelles des spécifications de produit; – une nouvelle Annexe B, "Valeurs par défaut spécifiques à un produit pour la mesure de l'ouverture numérique"; – ajout d'une nouvelle Technique 4, destinée à la mesure de l'ouverture numérique des fibres A4d; – une nouvelle Annexe A, "Mise en correspondance de mesures d'ouvertures numériques avec des longueurs différentes" qui présente une fonction de mise en correspondance destinée à établir une relation entre des mesures sur des échantillons plus courts et la longueur proposée pour obtenir Naff par la méthode d'essai de référence. Mots clés: l'ouverture numérique d'une fibre optique, contrôle des fibres et câbles

Optična vlakna - 1-43. del: Metode merjenja in preskusni postopki - Merjenje numerične odprtine (IEC 60793-1-43:2015)

Ta del standarda IEC 60794, ki je skupinska specifikacija, zajema optične telekomunikacijske kable, ki se uporabljajo v kanalih ali se neposredno zakopljejo. Kabel je namenjen tudi povezani nadzemni uporabi. Zahteve področne specifikacije IEC 60794-3 za kable v kanalih, zakopane in nadzemne kable se uporabljajo za kable iz tega standarda.

General Information

• Status: Published
• Publication Date: 07-May-2015
• Withdrawal Date: 30-Apr-2018
• 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: 08-May-2015
• Completion Date: 08-May-2015
• Ref Project: SIST EN 60793-1-43:2015 - Optical fibres - Part 1-43: Measurement methods - Numerical aperture measurement (IEC 60793-1-43:2015)

Relations

• Replaces: EN 60793-1-43:2002 - Optical fibres - Part 1-43: Measurement methods and test procedures - Numerical aperture
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60793-1-43:2015
01-oktober-2015
1DGRPHãþD
SIST EN 60793-1-43:2004
2SWLþQDYODNQDGHO0HWRGHPHUMHQMDLQSUHVNXVQLSRVWRSNL0HUMHQMH
QXPHULþQHRGSUWLQH,(&
Optical fibres - Part 1-43: Measurement methods - Numerical aperture measurement
(IEC 60793-1-43:2015)
Lichtwellenleiter - Teil 1-43: Messmethoden und Prüfverfahren - Numerische Apertur
(IEC 60793-1-43:2015)
Fibres optiques - Partie 1-43 : Méthodes de mesure et procédures d'essai - Mesure de
l'ouverture numérique (IEC 60793-1-43:2015)
Ta slovenski standard je istoveten z: EN 60793-1-43:2015
ICS:
33.180.10 2SWLþQDYODNQDLQNDEOL Fibres and cables
SIST EN 60793-1-43:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60793-1-43:2015

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SIST EN 60793-1-43:2015


EUROPEAN STANDARD EN 60793-1-43

NORME EUROPÉENNE

EUROPÄISCHE NORM
May 2015
ICS 33.180.10 Supersedes EN 60793-1-43:2002
English Version
Optical fibres - Part 1-43: Measurement methods and test
procedures - Numerical aperture measurement
(IEC 60793-1-43:2015)
Fibres optiques - Partie 1-43 : Méthodes de mesure et Lichtwellenleiter - Teil 1-43: Messmethoden und
procédures d'essai - Mesure de l'ouverture numérique Prüfverfahren - Numerische Apertur
(IEC 60793-1-43:2015) (IEC 60793-1-43:2015)
This European Standard was approved by CENELEC on 2015-05-01. 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
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 60793-1-43:2015 E

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SIST EN 60793-1-43:2015
EN 60793-1-43:2015 - 2 -
Foreword
The text of document 86A/1566/CDV, future edition 2 of IEC 60793-1-43, 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 60793-1-43:2015.

The following dates are fixed:
(dop) 2016-02-01
• 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) 2018-05-01
standards conflicting with the
document have to be withdrawn

This document supersedes EN 60793-1-43:2002.

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 60793-1-43:2015 was approved by CENELEC as a
European Standard without any modification.

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SIST EN 60793-1-43:2015
- 3 - EN 60793-1-43:2015
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 60
...