EN 60793-1-41:2003

Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth

Describes two methods for determining and measuring the modal bandwidth of multi-mode optical fibres (see EN 60793-2-10, EN 60793-2-30 and EN 60793-2-40).The baseband frequency response is directly measured in the frequency domain by determining the fibre response to a sinusoidally modulated light source, it can also be measured by observing the broadening of a narrow pulse of light. Method A - Optical time domain measurement method (pulse distortion). Method 2 - Frequency domain measurement method. Each method can be performed using one of two launches: an overfilled launch (OFL) condition or a restricted mode launch (RML) condition.

Lichtwellenleiter - Teil 1-41: Messmethoden und Prüfverfahren - Bandbreite

Fibres optiques - Partie 1-41: Méthodes de mesure et procédures d'essai - Largeur de bande

Deux méthodes pour mesurer la largeur de bande sont présentées: la réponse impulsionnelle, et la réponse fréquentielle. Les deux méthodes s'appliquent à la mesure de la largeur de bande des fibres multimodales de catégorie A1. L'application aux autres catégories de fibres multimodales de classe A est à l'étude. Aucune des méthodes ne s'applique à la mesure de la larguer de bande sur fibres unimodales de type B.

Optična vlakna – 1-41. del: Metode merjenja in preskusni postopki Pasovna širina (IEC 60793-1-41:2003)*

General Information

• Status: Withdrawn
• Publication Date: 09-Dec-2003
• Withdrawal Date: 31-Oct-2006
• 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
• Parallel Committee: IEC/SC 86A - IEC_SC_86A
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 01-Oct-2013
• Completion Date: 01-Oct-2013
• Ref Project: SIST EN 60793-1-41:2004 - Optical fibres -- Part 1-41: Measurement methods and test procedures - Bandwidth

Relations

• Replaced By: EN 60793-1-41:2010 - Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth
• Effective Date: 28-Jan-2023

Standards Content (Sample)

STANDARDOptična vlakna – 1-41. del: Metode merjenja in preskusni postopki Pasovna širina (IEC 60793-1-41:2003)*Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth (IEC 60793-1-41:2003)©
Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljenoReferenčna številkaSIST EN 60793-1-41:2004(en)ICS33.180.10

EUROPEAN STANDARD
EN 60793-1-41 NORME EUROPÉENNE EUROPÄISCHE NORM
December 2003 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60793-1-41:2003 E
ICS 33.180.10 Supersedes EN 60793-1-41:2002
English version
Optical fibres Part 1-41: Measurement methods and test procedures –
Bandwidth (IEC 60793-1-41:2003)
Fibres optiques Partie 1-41: Méthodes de mesure
et procédures d'essai –
Largeur de bande (CEI 60793-1-41:2003)
Lichtwellenleiter Teil 1-41: Messmethoden
und Prüfverfahren –
Bandbreite (IEC 60793-1-41:2003)
This European Standard was approved by CENELEC on 2003-11-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

at national level by publication of an identical
national standard or by endorsement
(dop) 2004-08-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow) 2006-11-01
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annexes A, B, C and ZA are normative and annexes D and E are informative. Annex ZA has been added by CENELEC. EN 60793-1-4X consists of the following parts, under the general title: Optical fibres: - Part 1-40: Measurement methods and test procedures – Attenuation - Part 1-41: Measurement methods and test procedures – Bandwidth - Part 1-42: Measurement methods and test procedures – Chromatic dispersion - Part 1-43: Measurement methods and test procedures – Numerical aperture - Part 1-44: Measurement methods and test procedures – Cut-off wavelength - Part 1-45: Measurement methods and test procedures – Mode field diameter - Part 1-46: Measurement methods and test procedures – Monitoring of changes in optical transmittance - Part 1-47: Measurement methods and test procedures – Macrobending loss - Part 1-48: Measurement methods and test procedures – Polarization mode dispersion - Part 1-49: Measurement methods and test procedures – Differential mode delay __________ Endorsement notice The text of the International Standard IEC 60793-1-41:2003 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 60793-1-40 NOTE Harmonized as EN 60793-1-40:2003 (modified). __________

- 3 - EN 60793-1-41:2003
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). 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 60793-1-20 2001 Optical fibres Part 1-20: Measurement methods and test procedures - Fibre geometry
EN 60793-1-20 2002 IEC 60793-1-42 2001 Part 1-42: Measurement methods and test procedures - Chromatic dispersion
EN 60793-1-42 2002 IEC 60793-1-43 2001 Part 1-43: Measurement methods and test procedures - Numerical aperture
EN 60793-1-43 2002 IEC 60793-2-10 2002 Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
EN 60793-2-10 2002 IEC 60793-2-30 2002 Part 2-30: Product specifications - Sectional specification for category A3 multimode fibres
EN 60793-2-30 2002 IEC 60793-2-40 2002 Part 2-40: Product specifications - Sectional specification for category A4 multimode fibres
EN 60793-2-40 2002
NORMEINTERNATIONALECEIIECINTERNATIONALSTANDARD60793-1-41Deuxième éditionSecond edition2003-04Fibres optiques –Partie 1-41:Méthodes de mesure et procédures d'essai –Largeur de bandeOptical fibres –Part 1-41:Measurement methods and test procedures –BandwidthPour prix, voir catalogue en vigueurFor price, see current catalogue IEC 2003
Droits de reproduction réservés

Copyright - all rights reservedAucune partie de cette publication ne peut être reproduite niutilisée sous quelque forme que ce soit et par aucun procédé,électronique ou mécanique, y compris la photocopie et lesmicrofilms, sans l'accord écrit de l'éditeur.No part of this publication may be reproduced or utilized in anyform or by any means, electronic or mechanical, includingphotocopying and microfilm, without permission in writing fromthe publisher.International Electrotechnical Commission,
3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: [phone]
Telefax: [phone]
E-mail: [e-mail]
Web: www.iec.chCODE PRIXPRICE CODEUCommission Electrotechnique InternationaleInternational Electrotechnical Commission

60793-1-41  IEC:2003– 3 –CONTENTSFOREWORD.51Scope.92Normative references.93Definition.114Apparatus.114.1Radiation source.114.2Launch system.134.3Detection system.154.4Recording system.174.5Computational equipment.174.6Overall system performance.175Sampling and specimens.175.1Test sample.175.2Reference sample.195.3End preparation.195.4Test sample packaging.195.5Test sample positioning.196Procedure.196.1Method A – Pulse distortion method (optical time domain) input pulsemeasurement.196.2Method B – Frequency domain measurement method.217Calculations or interpretation of results.237.1–3 dB frequency, f3 dB.237.2Calculations for optional reporting methods.238Length normalization.239Results.239.1Information to be provided with each measurement.239.2Informations available upon request.2510Specification information.25Annex A (normative)
Intramodal dispersion factor and the normalized intermodaldispersion limit.27Annex B (normative)
Fibre transfer function, H(f).35Annex C (normative)
Calculations for other reporting methods.37Annex D (informative)
Comparison between this test method and ITU requirements.39Annex E (informative)
Mode scrambler requirements for overfilled launching conditionsto multimode fibres.41Bibliography.53

60793-1-41  IEC:2003– 5 –INTERNATIONAL ELECTROTECHNICAL COMMISSION____________OPTICAL FIBRES –Part 1-41: Measurement methods and test procedures –BandwidthFOREWORD1)The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprisingall national electrotechnical committees (IEC National Committees). The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields. Tothis end and in addition to other activities, the IEC publishes International Standards. Their preparation isentrusted to technical committees; any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work. International, governmental and non-governmental organizations liaisingwith the IEC also participate in this preparation. The IEC collaborates closely with the International Organizationfor Standardization (ISO) in accordance with conditions determined by agreement between the twoorganizations.2)The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3)The documents produced have the form of recommendations for international use and are published in the formof standards, technical specifications, technical reports or guides and they are accepted by the NationalCommittees in that sense.4)
In order to promote international unification, IEC National Committees undertake to apply IEC InternationalStandards transparently to the maximum extent possible in their national and regional standards. Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.5)
The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for anyequipment declared to be in conformity with one of its standards.6)
Attention is drawn to the possibility that some of the elements of this International Standard may be the subjectof patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.International Standard IEC 60793-1-41 has been prepared by subcommittee 86A: Fibres andcables, of IEC technical committee 86: Fibre optics.This second edition cancels and replaces the first edition published in 2001. This editionconstitutes a technical revision.This new edition updates and completes the earlier edition in particular by the restricted modelaunch intended for the laser launch transmission system.The text of this standard is based on the following documents:FDISReport on voting86A/841/FDIS86A/853/RVDFull information on the voting for the approval of this standard can be found in the report onvoting indicated in the above table.This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.This standard is to be read in conjunction with IEC 60793-1-1.

60793-1-41  IEC:2003– 7 –IEC 60793-1-4X consists of the following parts, under the general title Optical fibres:Part 1-40:Measurement methods and test procedures – AttenuationPart 1-41:Measurement methods and test procedures – BandwidthPart 1-42:Measurement methods and test procedures – Chromatic disp
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