SIST EN 61300-3-40:1999

SLOVENSKI STANDARD
SIST EN 61300-3-40:1999
01-maj-1999
Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-40: Examinations and measurements -
Extinction ratio of a polarization maintaining (pm) fibre pigtailed connector (IEC
61300-3-40:1998)
Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures -- Part 3-40: Examinations and measurements - Extinction
ratio of a polarization maintaining (pm) fibre pigtailed connector
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und
Meßverfahren -- Teil 3-40: Untersuchungen und Messungen - Messung der
Verminderung des Extinktionsverhältnisses eines Steckverbinders mit einer
polarisationserhaltenden (PM) Anschlußfaser
Dispositifs d'interconnexion et composants passifs à fibres optiques - Méthodes
fondamentales d'essais et de mesures -- Partie 3-40: Examens et mesures - Rapport
d'extinction d'un connecteur à fibre amorce maintenant la polarisation (pm)
Ta slovenski standard je istoveten z: EN 61300-3-40:1998
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN 61300-3-40:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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NORME CEI
INTERNATIONALE IEC
61300-3-40
INTERNATIONAL
Première édition
STANDARD
First edition
1998-02
Dispositifs d’interconnexion et composants
passifs à fibres optiques –
Méthodes fondamentales d’essais et de mesures –
Partie 3-40:
Examens et mesures –
Rapport d’extinction d’un connecteur
à fibre amorce maintenant la polarisation (pm)
Fibre optic interconnecting devices
and passive components –
Basic test and measurement procedures –
Part 3-40:
Examinations and measurements –
Extinction ratio of a polarization maintaining (pm)
fibre pigtailed connector
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61300-3-40 © IEC:1998 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 3-40: Examinations and measurements –
Extinction ratio of a polarization maintaining (pm)
fibre pigtailed connector
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment 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 subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61300-3-40 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/1040/FDIS 86B/1060/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
IEC 61300 consists of the following parts, under the general title Fibre optic interconnecting
devices and passive components – Basic test and measurement procedures:
– Part 1: General and guidance
– Part 2: Tests
– Part 3: Examinations and measurements

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61300-3-40 © IEC:1998 – 5 –
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 3-40: Examinations and measurements –
Extinction ratio of a polarization maintaining (pm)
fibre pigtailed connector
1 General
1.1 Scope and object
This part of IEC 61300 describes the procedure to measure the ability of an optical fibre
connector to maintain a given extinction ratio across the connection in pm fibre. In this test we
limit the measurement to the most common case of nearly linearly polarized light propagating
in pm fibre. The term “extinction ratio” used here refers to the proportion of light propagating in
the two orthogonal polarization axes of the fibre and is more properly defined as “polarization
crosstalk”. “Extinction ratio” is the commonly used term.
This procedure has been designed for use with dedicated equipment in a manufacturing
environment and thus incorporates a rather elaborate test configuration. It should be noted that
other more direct test configurations can be used in suitably equipped optical laboratories.
These may be the subject of additional test procedures in the future. It should be noted that
this test procedure is not designed for long term continuous testing; drift of polarization
alignment can occur particularly in the single-mode fibre. Hence, repeated rather than
continuous measurement is required for long term testing of components.
1.2 General description
Polarization maintaining fibre has the ability to maintain the proportions of light polarized
parallel to the two axes of symmetry of the fibre even when there is moderate bending of the
fibre. A connector system intended for use with pm fibre should accordingly create minimum
...