IEC 61978-1:2009

Fibre optic interconnecting devices and passive components - Fibre optic passive chromatic dispersion compensators - Part 1: Generic specification

IEC 61978-1:2009 applies to fibre optic passive chromatic dispersion compensators, all exhibiting the following features:
- they are optically passive;
- they have an optical input and an optical output for transmitting optical power;
- they are wavelength sensitive;
- they may be polarization sensitive.
This standard establishes uniform requirements for the passive chromatic dispersion compensator. Changes from the previous edition of this standard are to reconsider the requirements.

Dispositifs d'interconnexion et composants passifs à fibres optiques - Compensateurs de dispersion chromatique passifs à fibres optiques - Partie 1: Spécification générique

La CEI 61978-1:2009 s'applique aux compensateurs de dispersion chromatique passifs à fibres optiques présentant les caractéristiques suivantes:
- ils sont passifs au niveau optique;
- ils possèdent une entrée optique et une sortie optique pour la transmission de la puissance optique;
- les portes sont des fibrres optiques ou des connecteurs optiques;
- ils sont sensibles aux longueurs d'onde;
- ils peuvent être sensibles à la polarisation.
La présente norme établit des exigences uniformes sur les compensateurs de dispersion chromatique passifs. Les changements par rapport à la première édition de cette norme consistent en la reconsidération des exigences.

General Information

• Status: Published
• Publication Date: 25-Nov-2009
• ICS: 33.180.01 - Fibre optic systems in general
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Drafting Committee: WG 7 - TC 86/SC 86B/WG 7
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 23-May-2014

Relations

• Revised: IEC 61978-1:2014 - Fibre optic interconnecting devices and passive components - Fibre optic passive chromatic dispersion compensators - Part 1: Generic specification
• Effective Date: 05-Sep-2023
• Revises: IEC 61978-1:2000 - Fibre optic passive dispersion compensators - Part 1: Generic specification
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61978-1 ®
Edition 2.0 2009-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Fibre optic
passive chromatic dispersion compensators –
Part 1: Generic specification
Dispositifs d’interconnexion et composants passifs à fibres optiques –
Compensateurs de dispersion chromatique passifs à fibres optiques –
Partie 1: Spécification générique

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IEC 61978-1 ®
Edition 2.0 2009-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Fibre optic
passive chromatic dispersion compensators –
Part 1: Generic specification
Dispositifs d’interconnexion et composants passifs à fibres optiques –
Compensateurs de dispersion chromatique passifs à fibres optiques –
Partie 1: Spécification générique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 33.180.01 ISBN 978-2-88910-595-3
– 2 – 61978-1 © IEC:2009
CONTENTS
FOREWORD.4
1 Scope.6
2 Normative references .6
3 Terms and definitions .7
3.1 Basic term .7
3.2 Component.7
3.3 Performance parameter.8
4 Requirements .10
4.1 General .10
4.2 Classification.10
4.2.1 Type.10
4.2.2 Style.11
4.2.3 Variant .12
4.2.4 Assessment level.12
4.2.5 Normative reference extensions .12
4.3 Documentation .13
4.3.1 Symbols .13
4.3.2 Specification system.13
4.3.3 Drawings .15
4.3.4 Tests and measurements.15
4.3.5 Test data sheets.16
4.3.6 Instructions for use.16
4.4 Standardization system .16
4.4.1 Performance standards.16
4.4.2 Reliability standards .16
4.4.3 Interlinking .17
4.5 Design and construction .18
4.5.1 Materials .18
4.5.2 Workmanship.19
4.6 Performance.19
4.7 Identification and marking .19
4.7.1 Variant identification number .19
4.7.2 Component marking .19
4.7.3 Package marking.20
4.8 Packaging .20
4.9 Storage conditions .20
4.10 Safety .20
Annex A (informative) Example of dispersion compensating technologies .21
Bibliography.27

Figure 1 – Standards currently under preparation .18
Figure A.1 – Chromatic dispersion in a standard single-mode optical fibre(SMF) .21
Figure A.2 – Calculated contour for different dispersion at the wavelength of 1,55 μm for a
step index core fibre .22
Figure A.3 – Examples of refractive index profile used in DCF .22

61978-1 © IEC:2009 – 3 –
Figure A.4 – Illustration of the use of a chirped fibre Bragg grating for chromatic dispersion
compensation .23
Figure A.5 – Zoom over 10 nm of the insertion loss spectrum including the optical circulator
(Figure A.5 a)) and the group delay spectrum (Figure A.5 b)) of a multi-channel FBG tailored
for the compensation of the chromatic dispersion accumulated over 100 km of single-mode
fibre .24
Figure A.6 – Structure of virtually imaged phased array (VIPA).25
Figure A.7 – Detailed light path and mechanism of generating chromatic dispersion .25
Figure A.8 – Gires-Tournois interferometer .26

Table 1 – Types of passive chromatic dispersion compensators.11
Table 2 – Three-level IEC specification structure .14
Table 3 – Standards interlink matrix.18
Table 4 – Quality assurance options .18

– 4 – 61978-1 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
FIBRE OPTIC PASSIVE CHROMATIC DISPERSION COMPENSATORS –

Part 1: Generic specification
FOREWORD
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