IEC 61300-3-7:2021
(Main)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
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 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.
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;
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.
Dispositifs d’interconnexion et composants passifs fibroniques - Procédures fondamentales d'essais et de mesures - Partie 3-7: Examens et mesures - Affaiblissement et affaiblissement de réflexion des composants unimodaux en fonction de la longueur d’onde
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.
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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
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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About the IEC
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International Standards for all electrical, electronic and related technologies.
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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
– 2 – IEC 61300-3-7:2021 © IEC 2021
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
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
– 4 – IEC 61300-3-7:2021 © IEC 2021
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
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 3-7: Examinations and measurements – Wavelength dependence
...
IEC 61300-3-7 ®
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
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
Dispositifs d’interconnexion et composants passifs fibroniques – Procédures
fondamentales d'essais et de mesures –
Partie 3-7: Examens et mesures – Affaiblissement et affaiblissement de réflexion
des composants unimodaux en fonction de la longueur d’onde
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
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containing more than 22 000 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 18 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
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IEC 61300-3-7 ®
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
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
Dispositifs d’interconnexion et composants passifs fibroniques – Procédures
fondamentales d'essais et de mesures –
Partie 3-7: Examens et mesures – Affaiblissement et affaiblissement de réflexion
des composants unimodaux en fonction de la longueur d’onde
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-1052-1
– 2 – IEC 61300-3-7:2021 © IEC 2021
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
8 Details to be reported . 24
8.1 General . 24
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 . 25
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 – Metho
...
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