SIST EN 62129-1:2017
(Main)Calibration of wavelength/optical frequency measurement instruments - Part 1: Optical spectrum analyzers (IEC 62129-1:2016)
Calibration of wavelength/optical frequency measurement instruments - Part 1: Optical spectrum analyzers (IEC 62129-1:2016)
This part of IEC 62129 specifies procedures for calibrating an optical spectrum analyzer that
is developed for use in fibre-optic communications and designed to measure the power
distribution of an optical spectrum. It does not apply to an optical wavelength meter that
measures only centre wavelengths, a Fabry-Perot interferometer or a monochromator that has
no display unit.
Kalibrierung von Messgeräten für die Wellenlänge/optische Frequenz - Teil 1: Optische Spektrumanalysatoren
Étalonnage des appareils de mesure de longueur d'onde/appareil de mesure de la fréquence optique - Partie 1: Analyseurs de spectre optique
L'IEC 62129-1:2016 spécifie des procédures pour étalonner un analyseur de spectre optique développé pour être utilisé dans les communications par fibres optiques et conçu pour mesurer la distribution en puissance d'un spectre optique. Elle ne s'applique pas aux appareils de mesure de longueurs d'onde optique mesurant uniquement les longueurs d'onde centrales, aux interféromètres de type Fabry-Perot, ni aux monochromateurs ne possédant pas d'unité d'affichage. Cette première édition de l'IEC 62129-1 annule et remplace la première édition de l'IEC 62129 parue en 2006. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- la mise à jour des termes et définitions;
- la mise à jour des conditions d'étalonnage;
- la modification du calcul des incertitudes liées à la dépendance de la longueur d'onde vis-à-vis de la température, liées à la linéarité de la puissance, et liées à la dépendance du niveau de puissance vis-à-vis de la température;
- l'Annexe E a été déplacée dans la bibliographie.
Mots clés : étalonner un analyseur de spectre optique
Umerjanje valovno-dolžinskih/optično-frekvenčnih merilnih instrumentov - 1. del: Analizatorji optičnega spektra (IEC 62129-1:2016)
Ta del standarda IEC 62129 določa postopke za umerjanje analizatorja optičnega spektra, razvitega za uporabo v komunikacijah po optičnih vlaknih in zasnovanega za merjenje distribucije električne energije optičnega spektra. Ne uporablja se za optični merilnik valovnih dolžin, ki meri le osrednje valovne dolžine, Fabry-Perotov interferometer ali monokromator brez prikazne enote.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 62129-1:2017
01-april-2017
1DGRPHãþD
SIST EN 62129:2006
8PHUMDQMHYDORYQRGROåLQVNLKRSWLþQRIUHNYHQþQLKPHULOQLKLQVWUXPHQWRYGHO
$QDOL]DWRUMLRSWLþQHJDVSHNWUD ,(&
Calibration of wavelength/optical frequency measurement instruments - Part 1: Optical
spectrum analyzers (IEC 62129-1:2016)
Ta slovenski standard je istoveten z: EN 62129-1:2016
ICS:
17.180.30 2SWLþQLPHULOQLLQVWUXPHQWL Optical measuring
instruments
33.180.01 6LVWHPL]RSWLþQLPLYODNQLQD Fibre optic systems in
VSORãQR general
SIST EN 62129-1:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 62129-1:2017
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SIST EN 62129-1:2017
EUROPEAN STANDARD EN 62129-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2016
ICS 33.140; 33.180.01 Supersedes EN 62129:2006
English Version
Calibration of wavelength/optical frequency measurement
instruments - Part 1: Optical spectrum analyzers
(IEC 62129-1:2016)
Étalonnage des appareils de mesure de longueur Kalibrierung von Messgeräten für die Wellenlänge/optische
d'onde/appareil de mesure de la fréquence optique - Frequenz - Teil 1: Optische Spektrumanalysatoren
Partie 1: Analyseurs de spectre optique (IEC 62129-1:2016)
(IEC 62129-1:2016)
This European Standard was approved by CENELEC on 2016-02-17. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62129-1:2016 E
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SIST EN 62129-1:2017
EN 62129-1:2016
European foreword
The text of document 86/477/CDV, future edition 1 of IEC 62129-1, prepared by IEC/TC 86 "Fibre
optics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN 62129-1:2016.
The following dates are fixed:
(dop) 2016-12-03
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2019-06-03
• latest date by which the national standards conflicting with
the document have to be withdrawn
This document supersedes EN 62129:2006.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 62129-1:2016 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 60793-2-50 NOTE Harmonized as EN 60793-2-50.
IEC 61315 NOTE Harmonized as EN 61315.
IEC 62129-2 NOTE Harmonized as EN 62129-2.
IEC 62522 NOTE Harmonized as EN 62522.
IEC 60359:2001 NOTE Harmonized as EN 60359:2002 (not modified).
IEC 61290-3-1 NOTE Harmonized as EN 61290-3-1.
2
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SIST EN 62129-1:2017
EN 62129-1:2016
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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 -
Chapter 731: Optical fibre
communication
IEC 60793-2 series Optical fibres - EN 60793-2 series
Part 2: Product specifications
IEC 60825-1 - Safety of laser products - EN 60825-1 -
Part 1: Equipment classification and
requirements
ISO/IEC 17025 - General requirements for the EN ISO/IEC 17025 -
competence of testing and calibration
laboratories
ISO/IEC Guide 98-3 2008 Uncertainty of measurement - - -
Part 3: Guide to the expression of
uncertainty in measurement
(GUM:1995)
3
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SIST EN 62129-1:2017
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SIST EN 62129-1:2017
IEC 62129-1
®
Edition 1.0 2016-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Calibration of wavelength/optical frequency measurement instruments –
Part 1: Optical spectrum analyzers
Étalonnage des appareils de mesure de longueur d’onde/appareil de mesure de
la fréquence optique –
Partie 1: Analyseurs de spectre optique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.140; 33.180.01 ISBN 978-2-8322-3123-4
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN 62129-1:2017
– 2 – IEC 62129-1:2016 © IEC 2016
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Preparation for calibration . 12
4.1 Organization . 12
4.2 Traceability . 12
4.3 Preparation . 12
4.4 Reference calibration conditions . 12
5 Wavelength calibration . 13
5.1 Overview. 13
5.2 Wavelength calibration under reference conditions . 13
5.2.1 General . 13
5.2.2 Equipment for wavelength calibration under reference conditions . 14
5.2.3 Procedure for wavelength calibration under reference conditions . 14
5.2.4 Calculations of wavelength uncertainty under reference conditions . 14
5.3 Wavelength calibration for operating conditions . 15
5.3.1 General . 15
5.3.2 Wavelength dependence . 15
5.3.3 Temperature dependence . 16
5.4 Calculation of expanded uncertainty . 17
6 Power level calibration . 18
6.1 Overview. 18
6.2 Power level calibration under reference conditions . 19
6.2.1 General . 19
6.2.2 Equipment for power level calibration under reference conditions . 19
6.2.3 Procedure for power level calibration under reference conditions . 19
6.2.4 Calculation of power level uncertainty under reference conditions . 20
6.3 Power level calibration for operating conditions . 21
6.3.1 General . 21
6.3.2 Wavelength dependence . 21
6.3.3 Polarization dependence . 23
6.3.4 Linearity . 24
6.3.5 Temperature dependence . 26
6.4 Calculation of expanded uncertainty . 27
7 Resolution bandwidth (spectral resolution) test . 28
7.1 Overview. 28
7.2 Resolution bandwidth (spectral resolution) test . 28
7.2.1 General . 28
7.2.2 Equipment for resolution bandwidth (spectral resolution) test . 28
7.2.3 Test procedure for resolution bandwidth (spectral resolution) . 29
8 Documentation . 30
8.1 Measurement conditions . 30
8.2 Measurement data and uncertainty . 30
Annex A (normative) Mathematical basis . 31
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SIST EN 62129-1:2017
IEC 62129-1:2016 IEC 2016 – 3 –
A.1 General . 31
A.2 Type A evaluation of uncertainty . 31
A.3 Type B evaluation of uncertainty . 32
A.4 Determining the combined standard uncertainty . 32
A.5 Reporting . 33
Annex B (informative) Examples of calculation of calibration uncertainty . 34
B.1 General . 34
B.2 Wavelength calibration . 34
B.2.1 Uncertainty under reference conditions: u . 34
D
λ
ref
B.2.2 Uncertainty under operating conditions . 35
B.2.3 Expanded uncertainty calculation . 36
B.3 Power level calibration . 37
B.3.1 Uncertainty under reference conditions: u . 37
D
Pref
B.3.2 Uncertainty under operating conditions . 38
B.3.3 Expanded uncertainty calculation . 41
Annex C (informative) Using the calibration results . 42
C.1 General . 42
C.1.1 Overview . 42
C.1.2 Parameters . 42
C.1.3 Restrictions . 42
C.2 Additive corrections . 42
C.2.1 Parameters . 42
C.2.2 Measurements close to a calibration reference wavelength . 43
C.2.3 Measurements at other wavelengths . 43
C.3 Multiplicative corrections . 44
C.3.1 Parameters . 44
C.3.2 Measurements close to a calibration reference wavelength . 44
C.3.3 Measurements at other wavelengths . 44
C.4 OSA calibration results (additive correction) . 45
Annex D (informative) Wavelength references . 48
D.1 General . 48
D.2 Gas laser lines . 48
D.3 Noble gas reference lines . 48
D.4 Molecular absorption lines . 49
Bibliography . 53
Figure 1 – Setup using a gas laser whose wavelength is known . 13
Figure 2 – Setup using a broadband source with a transmission device . 13
Figure 3 – Setup using an LD with an unknown wavelength . 13
Figure 4 – Test configuration for determining the temperature dependence of
wavelength uncertainty . 17
Figure 5 – Setup for calibration of power level under reference conditions . 19
Figure 6 – Test configuration for determining the wavelength dependence of power
level uncertainty . 21
Figure 7 – Test configuration for determining the polarization dependence of power
level uncertainty . 23
Figure 8 – Configuration for testing linearity error of power level uncertainty . 24
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Figure 9 – Test configuration for determining the temperature dependence of power
level uncertainty . 26
Figure C.1 – Calibration of OSA wavelength scale using krypton emission lines; 95 %
confidence intervals shown . 47
12
Figure D.1 – Absorption of LED light by acetylene ( C H ) . 50
2 2
13 14
Figure D.2 – Absorption of LED light by hydrogen cyanide (H C N) . 52
Table 1 – Recommended light sources . 29
Table C.1 – OSA calibration results . 46
Table C.2 – Summary of OSA calibration parameters. 46
Table D.1 – Vacuum wavelengths (nm) of selected gas laser lines . 48
Table D.2 – Vacuum wavelengths (nm) of noble gas reference lines . 49
12
Table D.3 – Vacuum wavelengths (nm) for the ν +ν band of acetylene C H
1 3 2 2
absorption lines [21-23] . 50
13
Table D.4 – Vacuum wavelengths (nm) for the ν +ν band of acetylene C H
1 3 2 2
absorption lines [21-23] . 51
13 14
Table D.5 – Vacuum wavelengths (nm) of selected hydrogen cyanide (H C N)
absorption lines [24] . 51
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SIST EN 62129-1:2017
IEC 62129-1:2016 IEC 2016 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CALIBRATION OF WAVELENGTH/OPTICAL
FREQUENCY MEASUREMENT INSTRUMENTS –
Part 1: Optical spectrum analyzers
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 62129-1 has been prepared by IEC technical committee 86: Fibre
optics.
This first edition of IEC 62129-1 cancels and replaces the first edition of IEC 62129, published
in 2006. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) update of term and definitions;
b) update of calibration conditions;
c) calculation change of uncertainties related to wavelength temperature dependence, power
linearity, power level temperature dependence;
d) move of Annex E to the bibliography.
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SIST EN 62129-1:2017
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The text of this standard is based on the following documents:
CDV Report on voting
86/477/CDV 86/483/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62129 series, published under the general title Calibration of
wavelength/optical frequency measurements instruments, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website 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 document using a
colour printer.
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SIST EN 62129-1:2017
IEC 62129-1:2016 IEC 2016 – 7 –
CALIBRATION OF WAVELENGTH/OPTICAL
FREQUENCY MEASUREMENT INSTRUMENTS –
Part 1: Optical spectrum analyzers
1 Scope
This part of IEC 62129 specifies procedures for calibrating an optical spectrum analyzer that
is developed for use in fibre-optic communications and designed to measure the power
distribution of an optical spectrum. It does not apply to an optical wavelength meter that
measures only centre wavelengths, a Fabry-Perot interferometer or a monochromator that has
no display unit.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. 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 – Chapter 731: Optical fibre
communication (available at http://www.electropedia.org)
IEC 60793-2 (all parts), Optical fibres – Part 2: Product specifications
IEC 60825-1, Safety of laser products – Part 1: Equipment classification and requirements
ISO/IEC 17025, General requirements for the competence of testing and calibration
laboratories
ISO/IEC Guide 98-3:2008, Uncertainty of measurement – Part 3: Guide to the expression of
uncertainty in measurement (GUM:1995)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-731 and the
following apply.
3.1
accredited calibration laboratory
calibration laboratory authorized by an appropriate national organization to issue calibration
certificates that demonstrates traceability to national standards
3.2
calibration
set of operations that establish, under specified conditions, the relationship between the
values of quantities indicated by a measuring instrument and the corresponding values
realized by standards
Note 1 to entry: The results of a calibration permit either the assignment of measurand values to the indications
or the determination of corrections with respect to the indications.
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Note 2 to entry: A calibration may also determine other metrological properties such as the effects of influence
quantities.
Note 3 to entry: The result of a calibration may be recorded in a document, called a calibration certificate or a
calibration report.
[SOURCE: ISO/IEC Guide 99:2007, 2.39, modified — only the first part of the definition is
used]
3.3
calibration under reference conditions
calibration which includes the evaluation of the test analyzer uncertainty under reference
conditions (3.18)
3.4
calibration for operating conditions
calibration for operating conditions of an optical spectrum analyzer (3.15) including the
evaluation of the test analyzer operational uncertainty
3.5
centre wavelength
centroidal wavelength
λ
c
power-weighted mean wavelength of a light source in vacuum
Note 1 to entry: The centre wavelength is expressed in nanometers (nm).
Note 2 to entry: For a continuous spectrum, the centre wavelength is defined as
p(λ)λdλ
∫
λ = (1)
c
P
total
For a spectrum consisting of discrete lines, the centre wavelength is defined as
Pλ
∑ i i
(2)
i
λ =
c
P
∑ i
i
where
p(λ) is the power spectral density of the source, for example, in W/nm;
th
λ is the vacuum wavelength of the i discrete line;
i
th
P is the power of the i discrete line, for example, in W;
i
P is the total power, for example, in W.
total
Note 3 to entry: The above integrals and summations theoretically extend over the entire spectrum of the light
source.
3.6
confidence level
confidence interval
estimation of the probability that the true value of a measured parameter lies in the given
range
Note 1 to entry: See expanded uncertainty (3.8)
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IEC 62129-1:2016 IEC 2016 – 9 –
3.7
coverage factor
k
factor by which the standard uncertainty (3.22), u, is multiplied to calculate the expanded
uncertainty (3.8), U
Note 1 to entry: See 3.8.
3.8
expanded uncertainty
U
range of values within which the measurement parameter, at the stated confidence level (3.6),
can be expected to lie
Note 1 to entry: It is equal to the coverage factor (3.7), k, times the combined standard uncertainty (3.22) u
U= ku (3)
Note 2 to entry: When the distribution of uncertainties is assumed to be normal and a large number of
measurements are made, then confidence levels (3.6) of 68,3 %, 95,5 % and 99,7 % correspond to k values of 1, 2
and 3 respectively.
Note 3 to entry: The measurement uncertainty of an optical spectrum
...
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