EN IEC 61978-1:2024

SLOVENSKI STANDARD
01-julij-2024
Optični spojni elementi in pasivne komponente - Optični pasivni kompenzatorji
barvne razpršenosti - 1. del: Splošna specifikacija (IEC 61978-1:2024)
Fibre optic interconnecting devices and passive components - Fibre optic passive
chromatic dispersion compensators - Part 1: Generic specification (IEC 61978-1:2024)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Passive Lichtwellenleiter
- Kompensatoren mit chromatischer Dispersion - Teil 1: Fachgrundspezifikation (IEC
61978-1:2024)
Dispositifs d'interconnexion et composants passifs à fibres optiques - Compensateurs de
dispersion chromatique passifs à fibres optiques - Partie 1: Spécification générique (IEC
61978-1:2024)
Ta slovenski standard je istoveten z: EN IEC 61978-1:2024
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61978-1

NORME EUROPÉENNE
EUROPÄISCHE NORM May 2024
ICS 33.180.01 Supersedes EN 61978-1:2014
English Version
Fibre optic interconnecting devices and passive components -
Fibre optic passive chromatic dispersion compensators - Part 1:
Generic specification
(IEC 61978-1:2024)
Dispositifs d'interconnexion et composants passifs Lichtwellenleiter - Verbindungselemente und passive
fibroniques - Compensateurs de dispersion chromatique Bauteile - Passive Lichtwellenleiter - Kompensatoren mit
passifs fibroniques - Partie 1 : Spécification générique chromatischer Dispersion - Teil 1: Fachgrundspezifikation
(IEC 61978-1:2024) (IEC 61978-1:2024)
This European Standard was approved by CENELEC on 2024-05-20. 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,
Türkiye 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61978-1:2024 E

European foreword
The text of document 86B/4866/FDIS, future edition 4 of IEC 61978-1, 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 61978-1:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-02-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-05-20
document have to be withdrawn
This document supersedes EN 61978-1:2014 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 61978-1:2024 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 standard indicated:
IEC 60068 series NOTE Approved as EN 60068 series
IEC 60695-11-5 NOTE Approved as EN 60695-11-5
IEC 60793-2-50 NOTE Approved as EN IEC 60793-2-50
IEC 60869-1 NOTE Approved as EN IEC 60869-1
IEC 60974 series NOTE Approved as EN IEC 60974 series
IEC 61073-1 NOTE Approved as EN 61073-1
IEC 61300-1 NOTE Approved as EN IEC 61300-1
IEC 61300-2 series NOTE Approved as EN 61300-2 series
IEC 61300-3 series NOTE Approved as EN 61300-3 series
IEC 61300-3-38 NOTE Approved as EN 61300-3-38
IEC 61753 series NOTE Approved as EN 61753 series
IEC 61754 series NOTE Approved as EN 61754 series
IEC 61754-4 NOTE Approved as EN IEC 61754-4
IEC 61754-13 NOTE Approved as EN 61754-13
IEC 61754-15 NOTE Approved as EN 61754-15
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60027 series Letters symbols to be used in electrical EN IEC 60027 series
technology
IEC 60050-731 - International Electrotechnical Vocabulary - - -
Chapter 731: Optical fibre communication
IEC 60617 series Standard data element types with - -
associated classification scheme for
electric components
IEC 61300 series Fibre optic interconnecting devices and EN IEC 61300 series
passive components - Basic test and
measurement procedures
IEC 61753 series Fibre optic interconnecting devices and EN IEC 61753 series
passive components - Performance
standard
IEC/TR 61930 - Fibre optic graphical symbology - -
IEC 62005 series Reliability of fibre optic interconnecting EN IEC 62005 series
devices and passive components
IEC/TS 62627-09 - Fibre optic interconnecting devices and - -
passive components - Vocabulary for
passive optical devices
ISO 129-1 - Technical product documentation (TPD) - EN ISO 129-1 -
Presentation of dimensions and tolerances
- Part 1: General principles
ISO 1101 - Geometrical product specifications (GPS) - EN ISO 1101 -
Geometrical tolerancing - Tolerances of
form, orientation, location and run-out
ISO 8601-1 - Date and time - Representations for - -
information interchange - Part 1: Basic
rules
IEC 61978-1 ®
Edition 4.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Fibre optic

passive chromatic dispersion compensators –

Part 1: Generic specification
Dispositifs d'interconnexion et composants passifs fibroniques –

Compensateurs de dispersion chromatique passifs fibroniques –

Partie 1 : Spécification générique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.01  ISBN 978-2-8322-8702-6

– 2 – IEC 61978-1:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
3.1 Component terms. 7
3.2 Performance terms . 8
4 Requirements . 10
4.1 Classification . 10
4.1.1 General . 10
4.1.2 Technology . 11
4.1.3 Types . 11
4.1.4 Wavelength band . 11
4.1.5 Application of PDCSs and their suitable technologies . 11
4.1.6 Interface style . 12
4.2 Documentation . 12
4.2.1 Symbols . 12
4.2.2 Drawings . 12
4.2.3 Tests and measurements . 12
4.2.4 Test report . 13
4.2.5 Instructions for use . 13
4.3 Standardisation system . 13
4.3.1 Interface standards . 13
4.3.2 Performance standards . 13
4.3.3 Reliability standards . 13
4.4 Design and construction . 14
4.4.1 Materials . 14
4.4.2 Workmanship . 14
4.5 Quality . 14
4.6 Performance requirements . 14
4.7 Identification and marking . 14
4.7.1 General . 14
4.7.2 Component marking . 14
4.7.3 Package marking . 15
4.8 Packaging . 15
4.9 Storage conditions . 15
4.10 Safety . 15
Annex A (informative) Example of dispersion compensating fibre (DCF) technologies . 16
Annex B (informative) Example of fibre Bragg grating (FBG) technologies . 18
Annex C (informative) Example of virtually imaged phased array (VIPA) technologies . 20
Annex D (informative) Example of GT etalon technologies . 22
Annex E (informative) Technology dependent characteristics of PCDCs . 23
Annex F (informative) Example of interface style . 24
Bibliography . 25

Figure A.1 – Chromatic dispersion in a standard single-mode optical fibre (SMF) . 16

IEC 61978-1:2024 © IEC 2024 – 3 –
Figure A.2 – Calculated contour for different dispersion at the wavelength of 1,55 µm
[CD(λ:1,55 µm)] for a step index core fibre . 17
Figure A.3 – Examples of refractive index profile used in DCF . 17
Figure B.1 – Illustration of the use of a chirped fibre Bragg grating for chromatic
dispersion compensation .
...