IEC 62150-4:2009

Fibre optic active components and devices - Test and measurement procedures - Part 4: Relative intensity noise using a time-domain optical detection system

IEC 62150-4:2009 specifies test and measurement procedures for relative intensity noise (RIN). It applies to lasers, laser transmitters, and the transmitter portion of transceivers. This procedure examines whether the device or module satisfies the appropriate performance specification. The procedure is applicable to single longitudinal mode (SLM). An optional section of the procedure presents a controlled return loss to the device-under-test, but is only applicable to devices coupled to SMF. Keywords: relative intensity noise (RIN), single longitudinal mode (SLM)

Composants et dispositifs actifs à fibres optiques - Procédures d'essais et de mesures - Partie 4: Intensité relative du bruit en utilisant un système de détection optique dans le domaine temporel

L'IEC 62150-4:2009 spécifie les procédures d'essais et de mesures pour l'intensité relative du bruit (RIN). Elle s'applique aux lasers, aux émetteurs lasers et à la partie émetteur des émetteurs/récepteurs. La présente procédure examine si le dispositif ou le module satisfait à la spécification de performances appropriée. La procédure est applicable aux lasers à mode longitudinal unique (SLM: Single Longitudinal Mode). Une section facultative de la procédure présente l'affaiblissement de réflexion contrôlé vers le dispositif en essai, mais elle s'applique uniquement aux dispositifs couplés à une fibre unimodale. Mots clés: l'intensité relative du bruit (RIN), mode longitudinal unique (SLM: Single Longitudinal Mode)

General Information

• Status: Published
• Publication Date: 19-Nov-2009
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86C - Fibre optic systems and active devices
• Current Stage: PPUB - Publication issued
• Start Date: 15-Dec-2009
• Completion Date: 20-Nov-2009

Standards Content (Sample)

IEC 62150-4 ®
Edition 1.0 2009-11
INTERNATIONAL
STANDARD
colour
inside
Fibre optic active components and devices – Test and measurement
procedures –
Part 4: Relative intensity noise using a time-domain optical detection system

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
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: [e-mail]
Web: www.iec.ch
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 corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: [e-mail]
Tel.: [phone]
Fax: [phone]
IEC 62150-4 ®
Edition 1.0 2009-11
INTERNATIONAL
STANDARD
colour
inside
Fibre optic active components and devices – Test and measurement
procedures –
Part 4: Relative intensity noise using a time-domain optical detection system
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
N
ICS 33.180.20 ISBN 978-2-88910-635-6
– 2 – 62150-4 © IEC:2009(E)
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope.6
2 Normative references.6
3 Terms, definitions and abbreviations .7
3.1 Terms and definitions .7
3.2 Abbreviations.7
4 Apparatus.8
4.1 General .8
4.2 Time-domain detection system.8
4.3 Polarization controller .8
4.4 Optical coupler .9
4.5 Variable optical attenuator .9
4.6 Fixed reflector .9
4.7 Modulation source .9
4.8 Low-pass filter .9
5 Test procedure .9
5.1 Return loss calibration (optional).9
5.2 RIN measurement – Direct method .9
5.2.1 General .9
5.2.2 Procedure.10
5.3 RIN measurement – Direct method.11
OMA
5.3.1 General .11
5.3.2 Procedure.11
5.4 RIN and RIN measurement – Using signal processing .11
OMA
5.4.1 General .11
5.4.2 Procedure.11
6 Test results .12
Annex A (informative) Background on laser intensity noise .13
Bibliography .14

Figure 1 – Equipment setup for RIN measurement .8
Figure 2 – Diagram for measuring RIN and RIN .10
OMA
62150-4 © IEC:2009(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES –
TEST AND MEASUREMENT PROCEDURES –

Part 4: Relative intensity noise using a time-domain
optical detection system
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.
International Standard IEC 62150-4 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86C/918/FDIS 86C/931/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – 62150-4 © IEC:2009(E)
A list of all the parts in the IEC 62150 series, under the general title Fibre optic active
components and devices – Test and measurement procedures, can be found on the IEC
website.
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

62150-4 © IEC:2009(E) – 5 –
INTRODUCTION
Laser intensity noise can be one of the limiting factors in the transmission of analogue or digital
signals. It can reduce the signal-to-noise ratio and increase the bit error rate, therefore
degrading system performance. Laser intensity noise can vary significantly depending on the
properties of the laser and back reflections. In order to optimize communication links, it is
essential to accurately characterize the laser intensity noise, compare it with the signal strength,
and if necessary allow an appropriate power budget.
Attention is drawn to the possibility that some of the elements of this document may be the
subject of patent rights. IEC shall not be held responsible for identifying any or all such patent
rights.
The International Electrotechnical Commission (IEC) draws attention to the fact that it is
claimed that compliance with this document may involve the use of a patent concerning the
FFT method for separating noise and deterministic signals given in 5.4.2.
IEC takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate licences
under reasonable and non-discriminatory terms and conditions with applicants throughout the
world. In this respect, the statement of the holder of this patent right is registered with IEC.
Information may be obtained from:
Agilent Technologies
1400 Fountain Grove Parkway
Santa Rosa, CA 95404
Attention is drawn to the possibility that some of the elements of this document may be the
subject of patent rights other than those identified above. IEC shall not be held responsible for
identifying any or all such patent rights.

– 6 – 62150-4 © IEC:2009(E)
FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES –
TEST AND MEASUREMENT PROCEDURES –

Part 4: Relative intensity noise using a time-domain
optical detection system
1 Scope
This part of IEC 62150 specifies test and measurement procedures for relative intensity noise
(RIN). It applies to lasers, laser transmitters, and the transmitter portion of transceivers. This
procedure examines whether the device or module satisfies the appropriate performance
specification. The procedure is applicable to single longitudinal mode (SLM). An optional
section of the procedure presents a controlled return loss to the device-under-test, but is only
applicable to devices coupled to SMF.
The method described in this standard, using a time-domain detection system, provides a
single value for RIN that averages the noise over the transmission bandwidth. The
measurement is made on a modulated laser capturing the RIN value under normal operating
conditions. It also measures RIN , an alternative definition, as described in IEEE 802.3-2005.
OMA
An alternative RIN measurement method uses a photoreceiver and electrical spectrum analyzer
and provides RIN vs. electrical frequency. This method provides a RIN value averaged over
particular electrical band determined by a filter. For a filter bandwidth and characteristic that
dupl
...

IEC 62150-4 ®
Edition 1.0 2009-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic active components and devices – Test and measurement
procedures –
Part 4: Relative intensity noise using a time-domain optical detection system

Composants et dispositifs actifs à fibres optiques – Procédures d'essais et de
mesures –
Partie 4: Intensité relative du bruit en utilisant un système de détection optique
dans le domaine temporel
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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 14
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 55 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient plus de 30 000 termes et définitions en
Spécifications techniques, Rapports techniques et autres
anglais et en français, ainsi que les termes équivalents dans
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
14 langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
La recherche avancée permet de trouver des publications IEC Plus de 55 000 entrées terminologiques électrotechniques, en
en utilisant différents critères (numéro de référence, texte, anglais et en français, extraites des articles Termes et
comité d’études,…). Elle donne aussi des informations sur les Définitions des publications IEC parues depuis 2002. Plus
projets et les publications remplacées ou retirées. certaines entrées antérieures extraites des publications des

CE 37, 77, 86 et CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 62150-4 ®
Edition 1.0 2009-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic active components and devices – Test and measurement

procedures –
Part 4: Relative intensity noise using a time-domain optical detection system

Composants et dispositifs actifs à fibres optiques – Procédures d'essais et de

mesures –
Partie 4: Intensité relative du bruit en utilisant un système de détection optique

dans le domaine temporel
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
N
CODE PRIX
ICS 33.180.20 ISBN 978-2-8322-1778-8

– 2 – IEC 62150-4:2009 © IEC 2009
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 7
4 Apparatus . 8
4.1 General . 8
4.2 Time-domain detection system . 8
4.3 Polarization controller . 8
4.4 Optical coupler . 9
4.5 Variable optical attenuator . 9
4.6 Fixed reflector . 9
4.7 Modulation source . 9
4.8 Low-pass filter . 9
5 Test procedure . 9
5.1 Return loss calibration (optional) . 9
5.2 RIN measurement – Direct method . 9
5.2.1 General . 9
5.2.2 Procedure . 10
5.3 RIN measurement – Direct method . 11
OMA
5.3.1 General . 11
5.3.2 Procedure . 11
5.4 RIN and RIN measurement – Using signal processing . 11
OMA
5.4.1 General . 11
5.4.2 Procedure . 11
6 Test results . 12
Annex A (informative) Background on laser intensity noise . 13
Bibliography . 14

Figure 1 – Equipment setup for RIN measurement . 8
Figure 2 – Diagram for measuring RIN and RIN . 10
OMA
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES –
TEST AND MEASUREMENT PROCEDURES –

Part 4: Relative intensity noise using a time-domain
optical detection system
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.
International Standard IEC 62150-4 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre optics.
This bilingual version (2014-08) corresponds to the English version, published in 2009-11.
The text of this standard is based on the following documents:
FDIS Report on voting
86C/918/FDIS 86C/931/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.
The French version of this standard has not been v
...