SIST EN 61280-1-3:2010

Fibre optic communication subsystem test procedures - Part 1-3: General communication subsystems - Central wavelength and spectral width measurement (IEC 61280-1-3:2010)

This part of IEC 61280 provides definitions and measure procedures for several wavelength and spectral width properties of an optical spectrum associated with a fibre optic communication subsystem, an optical transmitter, or other light sources used in the operation or test of communication subsystems. The measurement is done for the purpose of system construction and/or maintenance. In the case of communication subsystem signals, the optical transmitter is typically under modulation. NOTE Different properties may be appropriate to different spectral types, such as continuous spectra characteristic of light-emitting diodes (LEDs), and multilongitudinal-mode (MLM), multitransverse-mode (MTM) and single-longitudinal mode (SLM) spectra, characteristic of laser diodes (LDs).

Lichtwellenleiter- Kommunikationsuntersysteme; Grundlegende Prüfverfahren - Teil 1-3: Prüfverfahren für allgemeine Kommunikationsuntersysteme - Messung von Mittelwellenlänge und Spektralbreite (IEC 61280-1-3:2010)

Procédures d’essai des sous-systèmes de télécommunication à fibres optiques - Partie 1-3: Sous-systèmes généraux de télécommunication - Mesure de la longueur d'onde centrale et de la largeur spectrale (CEI 61280-1-3:2010)

La CEI 61280-1-3:2010 fournit des définitions et des procédures de mesure pour plusieurs propriétés de longueur d'onde et de largeur spectrale d'un spectre optique associées à un sous-système de télécommunication à fibres optiques, un émetteur optique ou d'autres sources de lumière utilisées pour l'exploitation ou les essais des sous-systèmes de télécommunication. Le mesurage est effectué pour les besoins de la construction et/ou de la maintenance d'un système. Dans le cas des signaux dans les sous-systèmes de télécommunication, l'émetteur optique fonctionne généralement en modulation. NOTE - Des propriétés différentes peuvent être appropriées pour des types de spectres différents, telles que les caractéristiques spectrales continues des diodes électroluminescentes (LED), les spectres de mode multilongitudinal (MLM), de mode multitransversal (MTM) et de mode monolongitudinal (SLM), qui sont caractéristiques des diodes lasers (LD).
Mots clés: définitions et des procédures de mesure pour plusieurs propriétés de longueur d'onde et de largeur spectrale d'un spectre optique, émetteur optique, essais des sous-systèmes de télécommunication

Postopki preskušanja optičnega komunikacijskega podsistema - 1-3. del: Splošni komunikacijski podsistemi - Merjenje osrednje valovne dolžine in širine spektra (IEC 61280-1-3:2010)

Ta del IEC 61280 zagotavlja definicije in merilne postopke za več lastnosti valovne dolžine in širine spektra optičnega spektra, povezanega z optičnim komunikacijskim podsistemom, optičnim oddajnikom ali drugimi svetlobnimi viri, ki se uporabljajo pri delovanju ali preskušanju komunikacijskih podsistemov.  Meritve so namenjene konstrukciji in/ali vzdrževanju sistema.  V primeru signalov komunikacijskega podsistema je optični oddajnik praviloma moduliran. OPOMBA: Različnim vrstam spektrov lahko ustrezajo različne lastnosti, kot so neprekinjeni spekter, značilen za svetleče diod (LED), in multilongitudinalni spekter (MLM), multitransverzni spekter (MTM) in enolongitudinalni spekter (SLM), značilni za laserske diode (LD).

General Information

• Status: Published
• Publication Date: 08-Jul-2010
• ICS: 33.180.01 - Fibre optic systems in general
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 22-Jun-2010
• Due Date: 27-Aug-2010
• Completion Date: 09-Jul-2010
• Ref Project: EN 61280-1-3:2010 - Fibre optic communication subsystem test procedures - Part 1-3: General communication subsystems - Central wavelength and spectral width measurement

Relations

• Replaced By: SIST EN IEC 61280-1-3:2021 - Fibre optic communication subsystem test procedures - Part 1-3: General communication subsystems - Measurement of central wavelength, spectral width and additional spectral characteristics (IEC 61280-1-3:2021)
• Effective Date: 31-Aug-2021
• Replaces: SIST EN 61280-1-3:2001 - Fibre optic communication subsystem basic test procedures -- Part 1-3: Test procedures for general communication subsystems - Central wavelength and spectral width measurement
• Effective Date: 29-Jan-2023
• Revised: SIST EN 61280-1-3:2001 - Fibre optic communication subsystem basic test procedures -- Part 1-3: Test procedures for general communication subsystems - Central wavelength and spectral width measurement
• Effective Date: 07-May-2013
• Replaces: SIST EN 61280-1-3:2001 - Fibre optic communication subsystem basic test procedures -- Part 1-3: Test procedures for general communication subsystems - Central wavelength and spectral width measurement
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61280-1-3:2010
01-september-2010
1DGRPHãþD
SIST EN 61280-1-3:2001
3RVWRSNLSUHVNXãDQMDRSWLþQHJDNRPXQLNDFLMVNHJDSRGVLVWHPDGHO6SORãQL
NRPXQLNDFLMVNLSRGVLVWHPL0HUMHQMHRVUHGQMHYDORYQHGROåLQHLQãLULQHVSHNWUD
,(&
Fibre optic communication subsystem test procedures - Part 1-3: General
communication subsystems - Central wavelength and spectral width measurement (IEC
61280-1-3:2010)
Lichtwellenleiter- Kommunikationsuntersysteme; Grundlegende Prüfverfahren - Teil 1-3:
Prüfverfahren für allgemeine Kommunikationsuntersysteme - Messung von
Mittelwellenlänge und Spektralbreite (IEC 61280-1-3:2010)
Procédures d’essai des sous-systèmes de télécommunication à fibres optiques - Partie 1
-3: Sous-systèmes généraux de télécommunication - Mesure de la longueur d'onde
centrale et de la largeur spectrale (CEI 61280-1-3:2010)
Ta slovenski standard je istoveten z: EN 61280-1-3:2010
ICS:
33.180.01 6LVWHPL]RSWLþQLPLYODNQLQD Fibre optic systems in
VSORãQR general
SIST EN 61280-1-3:2010 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61280-1-3:2010

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SIST EN 61280-1-3:2010

EUROPEAN STANDARD
EN 61280-1-3

NORME EUROPÉENNE
May 2010
EUROPÄISCHE NORM

ICS 33.180.01 Supersedes EN 61280-1-3:1999


English version


Fibre optic communication subsystem test procedures -
Part 1-3: General communication subsystems -
Central wavelength and spectral width measurement
(IEC 61280-1-3:2010)


Procédures d’essai des sous-systèmes  Lichtwellenleiter-
de télécommunication à fibres optiques - Kommunikationsuntersysteme;
Partie 1-3: Sous-systèmes généraux Grundlegende Prüfverfahren -
de télécommunication - Teil 1-3: Prüfverfahren für allgemeine
Mesure de la longueur d'onde centrale Kommunikationsuntersysteme -
et de la largeur spectrale Messung von Mittelwellenlänge
(CEI 61280-1-3:2010) und Spektralbreite
(IEC 61280-1-3:2010)




This European Standard was approved by CENELEC on 2010-05-01. 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 61280-1-3:2010 E

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SIST EN 61280-1-3:2010
EN 61280-1-3:2010 - 2 -
Foreword
The text of document 86C/887/CDV, future edition 2 of IEC 61280-1-3, prepared by SC 86C, Fibre optic
systems and active devices, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote
and was approved by CENELEC as EN 61280-1-3 on 2010-05-01.
This European Standard supersedes EN 61280-1-3:1999.
This EN 61280-1-3:2010 constitutes a technical revision with changes reflecting new laser technology
and includes a second method modified for state of the art instrumentation.
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) 2011-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-05-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61280-1-3:2010 was approved by CENELEC as a European
Standard without any modification.
__________

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SIST EN 61280-1-3:2010
- 3 - EN 61280-1-3:2010
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60825-1 - Safety of laser products - EN 60825-1 -
Part 1: Equipment classification and
requirements


IEC 62129 - Calibration of optical spectrum analyzers EN 62129 -

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SIST EN 61280-1-3:2010

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SIST EN 61280-1-3:2010
IEC 61280-1-3
®
Edition 2.0 2010-03
INTERNATIONAL
STANDARD


Fibre optic communication subsystem test procedures –
Part 1-3: General communication subsystems – Central wavelength and spectral
width measurement


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
Q
ICS 33.180.01 ISBN 2-8318-1082-3
® Registered trademark of the International Electrotechnical Commission

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SIST EN 61280-1-3:2010
– 2 – 61280-1-3 © IEC:2010(E)
CONTENTS
FOREWORD.3
1 Scope.5
2 Normative references .5
3 Terms and definitions .5
3.1 Wavelength .5
3.2 Spectral width .6
3.3 Additional spectral characteristics .6
4 Apparatus.6
4.1 Calibrated optical spectrum analyzer .6
4.2 Power supplies.7
4.3 Input signal source or modulator .7
4.4 Test cord.7
5 Test sample.7
6 Procedure (Method A) .7
6.1 General .7
6.2 Setup .7
6.3 Adjustment of spectrum analyzer controls .8
7 Procedure (Method B) .8
7.1 Setup .8
7.2 Adjustment of spectrum analyzer controls .9
7.3 Continuous LED and SLM spectra .9
7.4 Discrete MLM spectra.9
7.5 Continuous SLM spectra .10
8 Calculation .10
8.1 General .10
8.2 Centre wavelength .10
8.3 Centroidal wavelength .10
8.4 Peak wavelength .11
8.5 RMS spectral width (Δλ ) .11
rms
8.6 n-dB spectral width (Δλ ) .11
n-dB
8.7 Full-width half-maximum spectral width (Δλ ).11
fwhm
8.8 Side-mode suppression ratio (SMSR) .12
9 Test results .12
9.1 Required information .12
9.2 Information to be available on request.12
10 Example results.12
Figure 1 – Example of a LED optical spectrum.13
Figure 2 – Typical spectrum analyzer output for an MLM laser.15
Figure 3 – Δλ spectral width measurement for MLM laser .16
fwhm
Figure 4 – Δλ spectral width calculation for MLM laser.16
fwhm
Figure 5 – Peak emission wavelength and Δλ measurement for SLM laser.17
30–dB
Table 1 – Measurement points for LED spectrum from Figure 1 .13
Table 2 – RMS spectral characterization.14

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SIST EN 61280-1-3:2010
61280-1-3 © IEC:2010(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

FIBRE OPTIC COMMUNICATION
SUBSYSTEM TEST PROCEDURES –

Part 1-3: General communication subsystems –
Central wavelength and spectral width measurement


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.
International Standard IEC 61280-1-3 has been prepared by subcommittee 86C: Fibre optic
systems and active devices, of IEC technical committee 86.
This second edition cancels and replaces the first edition published in 1998. This edition
constitutes a technical revision with changes reflecting new laser technology and includes a
second method modified for state of the art instrumentation.
The text of this standard is based on the following documents:
CDV Report on voting
86C/ 887/CDV 86C/ 937/RVC

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

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SIST EN 61280-1-3:2010
– 4 – 61280-1-3 © IEC:2010(E)
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 61280 series can be found, under the general title Fibre optic
communication subsystem test procedures, on the IEC website.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability 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.
A bilingual version of this publication may be issued at a later date.

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SIST EN 61280-1-3:2010
61280-1-3 © IEC:2010(E) – 5 –
FIBRE OPTIC COMMUNICATION
SUBSYSTEM TEST PROCEDURES –

Part 1-3: General communication subsystems –
Central wavelength and spectral width measurement



1 Scope
This part of IEC 61280 provides definitions and measure procedures for several wavelength
and spectral width properties of an optical spectrum associated with a fibre optic
communication subsystem, an optical transmitter, or other light sources used in the operation
or test of communication subsystems.
The measurement is done for the purpose of system construction and/or maintenance. In the
case of communication subsystem signals, the optical transmitter is typically under
modulation.
NOTE Different properties may be appropriate to different spectral types, such as continuous spectra
characteristic of light-emitting diodes (LEDs), and multilongitudinal-mode (MLM), multitransverse-mode (MTM) and
single-longitudinal mode (SLM) spectra, characteristic of laser diodes (LDs).
2 Normative references
The following referenced documents are indispensable for the application 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 60825-1, Safety of laser products – Part 1: Equipment classification and requirements
IEC 62129, Calibration of optical spectrum analyzers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 Wavelength
NOTE The following wavelength terms provide quantitative definitions for the describing the central wavelength of
a spectrum. In this standard, “central wavelength” is a general category label for these terms.
3.1.1
centre wavelength
λ
0
also called “half-power mid-point”, the mean of the closest spaced half-power wavelengths in
an optical spectrum, one above and one below the peak wavelength
3.1.2
half-power wavelength
λ
3dB
a wavelength corresponding to a half peak power value of the optical spectrum

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SIST EN 61280-1-3:2010
– 6 – 61280-1-3 © IEC:2010(E)
3.1.3
peak wavelength
λ
p
the wavelength corresponding to the maximum power value of the optical spectrum
3.1.4
centroidal wavelength
λ
c
the mean or average wavelength of an optical spectrum
3.2 Spectral width
3.2.1
root-mean-square (rms) width
Δλ
rms
the square root of the second moment of the power distribution about the centroidal
wavelength
3.2.2
n-dB-down width
Δλ
n-dB
the positive difference of the closest spaced wavelengths, one above and one below the peak
wavelength λ , at which the spectral power density is n dB down from its peak value
p
3.2.3
full-width at half-maximum
Δλ
fwhm
a special case of n-dB-down width with n = 3
3.3 Additional spectral characteristics
3.3.1
side-mode suppression ratio
SMSR
the ratio of the largest peak of the optical spectrum to the second largest peak, for a
nominally SLM spectrum (see 8.8)
4 Apparatus
4.1 Calibrated optical spectrum analyzer
This special-purpose test equipment uses a dispersive spectrophotometric method to resolve
and record the optical spectral distribution. The required wavelength resolution and range
depends on the type and variety of signals to be measured. Generally, LED sources have
wide spectra with little structure so a range of at least 200 nm and resolution of 1 nm or
narrower are recommended. Laser sources have much narrower spectra and may be used in
wavelength-domain multiplexing (WDM) applications, where more accurate determination of
the wavelength is required. A wavelength resolution of 0,1 nm or narrower is recommended
and the actual requirement is determined by the application. In any case, the sensitivity and
wavelength range of the spectrum analyzer shall be sufficient to measure all of the spectrum
within at least –20 dB from the pe
...