SIST EN 60793-1-41:2010
(Main)Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth (IEC 60793-1-41:2010)
Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth (IEC 60793-1-41:2010)
This part of IEC 60793 describes three methods for determining and measuring the modal bandwidth of multimode optical fibres (see IEC 60793-2-10, IEC 60793-30 series and IEC 60793-40 series). The baseband frequency response is directly measured in the frequency domain by determining the fibre response to a sinusoidaly modulated light source. The baseband response can also be measured by observing the broadening of a narrow pulse of light. The calculated response is determined using differential mode delay (DMD) data. The three methods are: • Method A - Time domain (pulse distortion) measurement • Method B - Frequency-domain measurement • Method C - Overfilled launch modal bandwidth calculated from differential mode delay (OMBc) Methods A and B can be performed using one of two launches: an overfilled launch (OFL) condition or a restricted mode launch (RML) condition. Method C is only defined for A1a.2 (and A1a.3 in preparation) multimode fibre and uses a weighted summation of DMD launch responses with the weights corresponding to an overfilled launch condition. The relevant test method and launch condition should be chosen according to the type of fibre.
Lichtwellenleiter - Teil 1-41: Messmethoden und Prüfverfahren - Bandbreite (IEC 60793-1-41:2010)
Fibres optiques - Partie 1-41: Méthodes de mesure et procédures d'essai - Largeur de bande (CEI 60793-1-41:2010)
La CEI 60793-1-41:2010 décrit trois méthodes pour déterminer et mesurer la largeur de bande modale des fibres optiques multimodales (voir CEI 60793-2-10, série CEI 60793-30 et série CEI 60793-40). La réponse en fréquence de bande de base est directement mesurée dans le domaine fréquentiel en déterminant la réponse de la fibre à une source lumineuse modulée de manière sinusoïdale. La réponse en bande de base peut aussi être mesurée en observant l'élargissement d'une impulsion étroite de lumière. La réponse calculée est déterminée en utilisant les données de retard de mode différentiel (differential mode delay - DMD). Les trois méthodes sont les suivantes: - Methode A - Mesure dans le domaine temporel (distorsion d'impulsion) - Methode B - Mesure dans le domaine fréquentiel - Methode C - Largeur de bande modale d'injection saturée calculée à partir du retard de mode différentiel (OMBc). La modification principale par rapport à la précédente édition est l'addition d'une troisième méthode pour la détermination de la largeur de bande modale fondée sur les données de DMD et afin d'améliorer les procédures de mesure pour les fibres A4. Il convient d'utiliser cette norme conjointement à la CEI 60793-1-1 et à la CEI 60793-1-2, qui couvrent les spécifications génériques.
Optična vlakna - 1-41. del: Metode merjenja in preskusni postopki Pasovna širina (IEC 60793-1-41:2010)
Ta del IEC 60793 opisuje tri metode za določanje in merjenje modalne pasovne širine večrodovnih optičnih vlaken (glej IEC 60793-2-10, serijo IEC 60793-30 in serijo IEC 60793-40). Frekvenčni odziv osnovnega frekvenčnega pasu se meri neposredno v frekvenčni domeni z ugotavljanjem odziva vlaken na sinusoidno modulirani svetlobni vir. Odziv osnovnega frekvenčnega pasu se lahko meri tudi z opazovanjem širjenja ozkega svetlobnega impulza. Izračunani odziv se določi s podatki o diferenčni zakasnitvi rodov (DMD). Tri metode so: • Metoda A – meritev časovne domene (popačenje impulza) • Metoda B – merjenje frekvenčne domene • Metoda C – prenapolnjena zagonska modalna pasovna širina, izračunana iz diferenčne zakasnitve rodov (OMBc) Metodi A in B se lahko izvajata z uporabo enega od dveh zagonov: s prenapolnjenim stanjem pred začetkom proizvodnje (OFL) ali s stanjem pred začetkom proizvodnje v omejenem načinu (RML). Metoda C je definirana le za večrodovna optična vlakna A1a.2 (in A1a.3 v pripravi) in uporablja uteženo seštevanje zagonskih odzivov DMD z utežmi, ki ustrezajo prenapolnjenemu zagonu. Glede na vrsto vlakna se izbereta ustrezna preskusna metoda in stanje pred začetkom proizvodnje.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60793-1-41:2010
01-december-2010
1DGRPHãþD
SIST EN 60793-1-41:2004
2SWLþQDYODNQDGHO 0HWRGHPHUMHQMDLQSUHVNXVQLSRVWRSNL3DVRYQDãLULQD
,(&
Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth (IEC
60793-1-41:2010)
Lichtwellenleiter - Teil 1-41: Messmethoden und Prüfverfahren - Bandbreite (IEC 60793-
1-41:2010)
Fibres optiques - Partie 1-41: Méthodes de mesure et procédures d'essai - Largeur de
bande (CEI 60793-1-41:2010)
Ta slovenski standard je istoveten z: EN 60793-1-41:2010
ICS:
33.180.10 2SWLþQD YODNQDLQNDEOL Fibres and cables
SIST EN 60793-1-41:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60793-1-41:2010
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SIST EN 60793-1-41:2010
EUROPEAN STANDARD
EN 60793-1-41
NORME EUROPÉENNE
October 2010
EUROPÄISCHE NORM
ICS 33.180.10 Supersedes EN 60793-1-41:2003
English version
Optical fibres -
Part 1-41: Measurement methods and test procedures -
Bandwidth
(IEC 60793-1-41:2010)
Fibres optiques - Lichtwellenleiter -
Partie 1-41: Méthodes de mesure Teil 1-41: Messmethoden
et procédures d'essai - und Prüfverfahren -
Largeur de bande Bandbreite
(CEI 60793-1-41:2010) (IEC 60793-1-41:2010)
This European Standard was approved by CENELEC on 2010-10-01. 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, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland 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
© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60793-1-41:2010 E
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SIST EN 60793-1-41:2010
EN 60793-1-41:2010 - 2 -
Foreword
The text of document 86A/1294/CDV, future edition 3 of IEC 60793-1-41, prepared by SC 86A, Fibres
and cables, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as EN 60793-1-41 on 2010-10-01.
This European Standard supersedes EN 60793-1-41:2003.
The main change with respect to EN 60793-1-41:2003 is the addition of a third method for determining
modal bandwidth based on DMD data and to improve measurement procedures for A4 fibres.
This standard should be read in conjunction with EN 60793-1-1 and IEC 60793-1-2, which cover generic
specifications.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-10-01
Annex ZA has been added by CENELEC.
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Endorsement notice
The text of the International Standard IEC 60793-1-41:2010 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
[1] IEC 60793-2-10 NOTE Harmonized as EN 60793-2-10.
[2] IEC 60793-2-30 NOTE Harmonized as EN 60793-2-30.
[3] IEC 60793-2-40 NOTE Harmonized as EN 60793-2-40.
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SIST EN 60793-1-41:2010
- 3 - EN 60793-1-41:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of thi
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