SIST EN IEC 61300-3-7:2021

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-7: Examinations and measurements - Wavelength dependence of attenuation and return loss of single mode components (IEC 61300-3-7:2021)

This part of IEC 61300-3 describes methods available to measure the wavelength dependence of attenuation and return loss of two port, single mode passive optical components. It is not, however, applicable to dense wavelength division multiplexing (DWDM) devices. Measurement methods of wavelength dependence of attenuation of DWDM devices are described in IEC 61300-3-29.
There are two measurement cases described in this standard:
a) Measurement of attenuation only;
b) Measurement of attenuation and return loss at the same time.

Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und Messverfahren - Teil 3-7: Untersuchungen und Messungen - Wellenlängenabhängigkeit von Dämpfung und Rückflussdämpfung von Einmodenbauteilen (IEC 61300-3-7:2021)

Dispositifs d’interconnexion et composants passifs a fibres optiques - Méthodes fondamentales d'essais et de mesures - Partie 3-7: Examens et mesurages - Affaiblissement et affaiblissement de réflexion des composants unimodaux en fonction de la longueur d’onde (IEC 61300-3-7:2021)

IEC 61300-3-7:2021 décrit les méthodes disponibles de mesure de l’affaiblissement et de l’affaiblissement de réflexion des composants optiques passifs unimodaux à deux ports en fonction de la longueur d'onde. Elle n’est toutefois pas applicable aux dispositifs de multiplexage par répartition en longueurs d'onde à forte densité (DWDM_dense wavelength division multiplexing). Les méthodes de mesure de l’affaiblissement des dispositifs DWDM en fonction de la longueur d'onde sont décrites dans l’IEC 61300-3-29.
Le présent document décrit deux cas de mesure:
a) mesurage de l’affaiblissement uniquement;
b) mesurage simultané de l’affaiblissement et de l’affaiblissement de réflexion.
Cette troisième édition annule et remplace la deuxième édition parue en 2009. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) réduction du nombre de méthodes alternatives proposées afin de les rendre conformes à la pratique industrielle;
b) nouvel énoncé des équations relatives à la perte d’insertion et à l’affaiblissement de réflexion utilisant des formes logarithmiques plus courantes dans le secteur de l’industrie;
c) recommandations supplémentaires concernant la création de terminaisons de fibres;
d) analyse complémentaire de la caractérisation des sources optiques utilisées dans la présente norme;
d) simplification des essais bidirectionnels;
e) suppression de procédures de mesure distinctes par affaiblissement de réflexion uniquement.

Naprave za spajanje optičnih vlaken in pasivne komponente - Postopki osnovnega preskušanja in merjenja - 3-7. del: Preiskave in meritve - Odvisnost valovne dolžine od slabljenja in povratne izgube enorodovnih komponent (IEC 61300-3-7:2021)

General Information

• Status: Published
• Publication Date: 17-Oct-2021
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 03-Sep-2021
• Due Date: 08-Nov-2021
• Completion Date: 18-Oct-2021
• Ref Project: EN IEC 61300-3-7:2021 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-7: Examinations and measurements - Wavelength dependence of attenuation and return loss of single mode components

Relations

• Revised: SIST EN 61300-3-7:2012 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-7: Examinations and measurements - Wavelength dependence of attenuation and return loss of single mode components (IEC 61300-3-7:2009, Modified)
• Effective Date: 10-May-2016
• Replaces: SIST EN 61300-3-7:2012 - Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-7: Examinations and measurements - Wavelength dependence of attenuation and return loss of single mode components (IEC 61300-3-7:2009, Modified)
• Effective Date: 31-Aug-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 61300-3-7:2021
01-november-2021
Nadomešča:
SIST EN 61300-3-7:2012
Naprave za spajanje optičnih vlaken in pasivne komponente - Postopki osnovnega
preskušanja in merjenja - 3-7. del: Preiskave in meritve - Odvisnost valovne
dolžine od slabljenja in povratne izgube enorodovnih komponent (IEC 61300-3-
7:2021)
Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-7: Examinations and measurements - Wavelength
dependence of attenuation and return loss of single mode components (IEC 61300-3-
7:2021)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und
Messverfahren - Teil 3-7: Untersuchungen und Messungen - Wellenlängenabhängigkeit
von Dämpfung und Rückflussdämpfung von Einmodenbauteilen (IEC 61300-3-7:2021)
Dispositifs d’interconnexion et composants passifs a fibres optiques - Méthodes
fondamentales d'essais et de mesures - Partie 3-7: Examens et mesurages -
Affaiblissement et affaiblissement de réflexion des composants unimodaux en fonction
de la longueur d’onde (IEC 61300-3-7:2021)
Ta slovenski standard je istoveten z: EN IEC 61300-3-7:2021
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
SIST EN IEC 61300-3-7:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD EN IEC 61300-3-7

NORME EUROPÉENNE

EUROPÄISCHE NORM
August 2021
ICS 33.180.20 Supersedes EN 61300-3-7:2012 and all of its
amendments and corrigenda (if any)
English Version
Fibre optic interconnecting devices and passive components -
Basic test and measurement procedures - Part 3-7:
Examinations and measurements - Wavelength dependence of
attenuation and return loss of single mode components
(IEC 61300-3-7:2021)
Dispositifs d'interconnexion et composants passifs a fibres Lichtwellenleiter - Verbindungselemente und passive
optiques - Méthodes fondamentales d'essais et de mesures Bauteile - Grundlegende Prüf- und Messverfahren - Teil 3-
- Partie 3-7: Examens et mesurages - Affaiblissement et 7: Untersuchungen und Messungen -
affaiblissement de réflexion des composants unimodaux en Wellenlängenabhängigkeit von Dämpfung und
fonction de la longueur d'onde Rückflussdämpfung von Einmodenbauteilen
(IEC 61300-3-7:2021) (IEC 61300-3-7:2021)
This European Standard was approved by CENELEC on 2021-08-11. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 61300-3-7:2021 E

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SIST EN IEC 61300-3-7:2021
EN IEC 61300-3-7:2021 (E)
European foreword
The text of document 86B/4337/CDV, future edition 3 of IEC 61300-3-7, prepared by SC 86B “Fibre
optic interconnecting devices and passive components” of IEC/TC 86 “Fibre optics” was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61300-3-7:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022–08–11
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022–08–11
document have to be withdrawn
This document supersedes EN 61300-3-7:2012 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61300-3-7:2021 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:
IEC 61300-3-4 NOTE Harmonized as EN 61300-3-4
IEC 61300-3-6 NOTE Harmonized as EN 61300-3-6
IEC 61300-3-29 NOTE Harmonized as EN 61300-3-29
2

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SIST EN IEC 61300-3-7:2021
EN IEC 61300-3-7:2021 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where 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 60050-731 - International Electrotechnical Vocabulary - -
(IEV) - Part 731: Optical fibre
communication
IEC 60793-2-50 - Optical fibres - Part 2–50: Product EN IEC 60793-2-50 -
specifications - Sectional specification for
class B single-mode fibres
IEC 61755-2-4 - Fibre optic interconnecting devices and EN 61755-2-4 -
passive components - Connector optical
interfaces - Part 2–4: Connection
parameters of non-dispersion shifted
single-mode physically contacting fibres -
Non-angled for reference connection
applications
IEC 61755-2-5 - Fibre optic interconnecting devices and EN 61755-2-5 -
passive components - Connector optical
interfaces - Part 2–5: Connection
parameters of non-dispersion shifted
single-mode physically contacting fibres -
Angled for reference connection
applications
IEC/TR 61931 - Fibre optic - Terminology - -
IEC 62074-1 - Fibre optic interconnecting devices and EN 62074-1 -
passive components - Fibre optic WDM
devices - Part 1: Generic specification


3

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SIST EN IEC 61300-3-7:2021



IEC 61300-3-7

®


Edition 3.0 2021-07




INTERNATIONAL



STANDARD



















Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures –

Part 3-7: Examinations and measurements – Wavelength dependence of

attenuation and return loss of single mode components
























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 33.180.20 ISBN 978-2-8322-9989-0




  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

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SIST EN IEC 61300-3-7:2021
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CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, abbreviated terms and quantity symbols . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 8
3.3 Quantity symbols . 9
4 General description . 9
4.1 General . 9
4.2 Light source and detector conditions . 9
4.3 General explanation of attenuation and return loss . 10
4.3.1 Attenuation . 10
4.3.2 Return loss . 10
4.4 Device under test (DUT) . 11
4.5 Measurement methods . 12
5 Apparatus . 12
5.1 General . 12
5.2 Optical source . 13
5.2.1 Method A – Broadband light source (BBS) . 13
5.2.2 Method B – Tuneable narrowband light source (TNLS) . 13
5.2.3 Method C – Set of multiple fixed narrowband light sources (NLS) . 13
5.3 Depolarizer . 13
5.4 Power detection systems . 14
5.4.1 Method A – Tuneable narrowband detection (TND) . 14
5.4.2 Method B and C – Broadband detection (BBD) . 14
5.5 Branching device (BD) . 15
5.6 Termination . 15
5.7 Temporary joint (TJ) . 15
5.8 Test patch cord . 15
5.9 Reference plugs (RP). 16
5.10 Reference adapters (RA) . 16
6 Procedure . 16
6.1 Method A – Broadband light source . 16
6.1.1 Method A1 – Attenuation only . 16
6.1.2 Method A2 – Attenuation and return loss . 17
6.2 Method B – Tuneable narrowband light source . 20
6.2.1 General . 20
6.2.2 Method B – Attenuation only . 21
6.2.3 Method B – Attenuation and return loss . 21
6.3 Method C – Set of multiple fixed narrowband light sources . 22
6.3.1 General . 22
6.3.2 Method C1 – Attenuation only . 22
6.3.3 Method C2 – Attenuation and return loss . 22
7 Test results . 23

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8 Details to be reported . 23
8.1 General . 23
8.2 Total measurement system . 24
8.3 Source . 24
8.3.1 Broadband light source . 24
8.3.2 Tuneable or discrete narrowband light source . 24
8.3.3 Depolarizer . 24
8.4 Detection system . 24
8.4.1 Optical power meter. 24
8.4.2 Optical spectrum analyzer . 24
8.4.3 Branching device . 25
8.4.4 Termination . 25
8.4.5 Temporary joint . 25
8.4.6 Reference plug . 25
8.4.7 Reference adapter . 25
Annex A (informative) Types of passive optical components . 26
Annex B (informative) Typical light source characteristics . 27
B.1 General . 27
B.2 Broadband light source . 27
B.3 Tuneable laser source . 27
Annex C (informative) Terminations . 29
Bibliography . 31


Figure 1 – Generic explanation of attenuation and return loss . 11
Figure 2 – Method A1, attenuation-only, reference measurement set-up . 16
Figure 3 – Method A1, attenuation-only, DUT measurement set-up . 17
Figure 4 – Method A2, attenuation and return loss, reference branching device
measurement set-up . 18
Figure 5 – Method A2, attenuation and return loss, reference measurement set-up. 18
Figure 6 – Method A2, system background measurement set-up . 19
Figure 7 – Method A2, attenuation and return loss, DUT measurement set-up . 20
Figure 8 – Method B, tuneable narrowband light source with and without depolarizer . 21
Figure 9 – Method C, multiple fixed narrowband sources set-up . 22
Figure 10 – Example wavelength dependent attenuation plot . 23

Table 1 – Device under test categories . 11
Table 2 – Measurement methods . 12
Table 3 – Reference test methods . 12
Table 4 – Preferred OPM parameters . 15
Table 5 – Steps of method A1, attenuation only . 16
Table 6 – Steps of method A2, attenuation and return loss . 17
Table 7 – Steps of method B, attenuation only . 21
Table 8 – Steps of method B, attenuation and return loss . 21
Table 9 – Steps of method C, attenuation only . 22
Table 10 – Steps of method C2, attenuation and return loss . 22

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Table 11 – Example report for wavelength dependent attenuation and return loss . 23
Table A.1 – Functional summary of common passive optical components . 26
Table B.1 – Types of broadband light source (BBS) and main characteristics . 27
Table B.2 – Types of tuneable light source (TLS) and main characteristics . 28
Table C.1 – Impact on termination values on measured return loss . 29
Table C.2 – Impact on termination values on measured return loss uncertainty . 30

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IEC 61300-3-7:2021 © IEC 2021 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 3-7: Examinations and measurements – Wavelength dependence
of attenuation and return loss of single mode components

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of 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, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). 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. 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 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 IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 61300-3-7 has been prepared by subcommittee 86B: Fibre optic interconnecting devices
and passive components, of IEC technical committee 86: Fibre optics. It is an International
Standard.
This third edition cancels and replaces the second edition published in 2009. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) reduction of the number of alternative methods proposed to bring in-line with industry
practice;
b) re-statement of the equations for insertion loss and return loss using logarithmic forms more
common in the industry;
c) additional recommendations with respect to the creation of fibre terminations;

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d) additional discussion on the characterization of the optical sources used in this document;
e) simplification of bi-directional testing;
f) removal of separate return loss only measurement procedures.
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/4337/CDV 86B/4425A/RVC

Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 61300 series, published under the general title Fibre optic
interconnecting devices and passive components – Basic test and measurement procedures,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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IEC 61300-3-7:2021 © IEC 2021 – 7 –
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 3-7: Examinations and measurements – Wavelength dependence
of attenuation and return loss of single mode components



1 Scope
This part of IEC 61300-3 describes methods available to measure the wavelength dependence
of attenuation and return loss of two-port, single mode passive optical components. It is not,
however, applicable to dense wavelength division multiplexing (DWDM) devices. Measurement
methods of wavelength dependence of attenuation of DWDM devices are described in
IEC 61300-3-29.
There are two measurement cases described in this document:
a) measurement of attenuation only;
b) measurement of attenuation and return loss at the same time.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60050-731, International Electrotechnical Vocabulary (IEV) – Part 731: Optical fibre
communication (available at www.electropedia.org)
IEC 60793-2-50, Optical fibres – Part 2-50: Product specifications – Sectional specification for
class B single-mode fibres
IEC 61755-2-4, Fibre optic interconnecting devices and passive components – Connector
optical interfaces – Part 2-4: Connection parameters of non-dispersion shifted single-mode
physically contacting fibres – Non-angled for reference connection applications
IEC 61755-2-5, Fibre optic interconnecting devices and passive components – Connector
optical interfaces – Part 2-5: Connection parameters of non-dispersion shifted single-mode
physically contacting fibres – Angled for reference connection applications
IEC TR 61931, Fibre optic – Terminology
IEC 62074-1, Fibre optic interconnecting devices and passive components – Fibre optic WDM
devices – Part 1: Generic specification
3 Terms, definitions, abbreviated terms and quantity symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-731, IEC TR
61931 and IEC 62074-1 apply.

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ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp.
3.2 Abbreviated terms
APC angled physical contact
ASE amplified spontaneous emission
BBD broadband detector
BBS  broadband light source
BD  branching device
BPON broadband passive optical network
CC  coherent control
CWDM coarse wavelength division multiplexing
DFB distributed feedback
DOP degree of polarization
DUT device under test
DWDM dense wavelength division multiplexing
ECL  external cavity laser
EDFA erbium doped fibre amplifier
EDFL erbium doped fibre laser
EPON ethernet passive optical network
FBG fibre Bragg grating
FEC forward error correction
FP  Fabry-Perot
GPON gigabit Ethernet passive optical network
IR  infra-red
LD  laser diode
LED light emitting diode
NLS narrow band light source
OADM optical add drop multiplexer
OFA optical fibre amplifier
OPM optical power meter
OSA optical spectrum analyzer
PDL  polarization dependent loss
PON  passive optical network
RA  reference adapter
RBD reference branching device
RBW resolution bandwidth
RL  return loss
RP  reference plug
RTM reference test method
SLED super light emitting diode
SMSR side mode suppression ratio

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SOP state of polarization
SSE source spontaneous emission
TJ  temporary joint
TLS tuneable laser source
TND tuneable narrow band detection
TNLS tuneable narrow band light source
UV  ultra violet
WDM wave division multiplexing
3.3 Quantity symbols
array of n (k = 1 to n) wavelengths to be m
...