IEC 61290-4-1:2011

Optical amplifiers - Test methods - Part 4-1: Gain transient parameters - Two-wavelength method

IEC 61290-4-1:2011 applies to erbium-doped fibre amplifiers (EDFAs) and optically amplified elementary sub-systems. It applies to OAs using active fibres (optical fibre amplifiers, OFAs), containing rare-earth dopants. These amplifiers are commercially available and widely deployed in service provider networks.

Amplificateurs optiques - Méthodes d'essai - Partie 4-1: Paramètres de gain transitoire - Méthode à deux longueurs d'onde

La CEI 62190-4-1:2011 s'applique aux amplificateurs à fibre dopée à l'erbium (EDFA) et aux sous-systèmes élémentaires à amplification optique. Elle s'applique aux AO utilisant des fibres actives (amplificateurs à fibres optiques, AFO), contenant des dopants aux terres rares. Ces amplificateurs sont disponibles sur le marché et sont largement déployés dans les réseaux de prestataires de service.

General Information

• Status: Published
• Publication Date: 09-Aug-2011
• ICS: 33.180.30 - Optic amplifiers
• Technical Committee: SC 86C - Fibre optic systems and active devices
• Drafting Committee: WG 3 - TC 86/SC 86C/WG 3
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 26-Sep-2016

Relations

• Revised: IEC 61290-4-1:2016 - Optical amplifiers - Test methods - Part 4-1: Gain transient parameters - Two-wavelength method
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61290-4-1 ®
Edition 1.0 2011-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical amplifiers – Test methods –
Part 4-1: Gain transient parameters – Two-wavelength method

Amplificateurs optiques – Méthodes d’essai –
Partie 4-1: Paramètres de gain transitoire – Méthode à deux longueurs d'onde

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IEC 61290-4-1 ®
Edition 1.0 2011-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical amplifiers – Test methods –
Part 4-1: Gain transient parameters – Two-wavelength method

Amplificateurs optiques – Méthodes d’essai –
Partie 4-1: Paramètres de gain transitoire – Méthode à deux longueurs d'onde

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX R
ICS 33.180.30 ISBN 978-2-88912-614-9

– 2 – 61290-4-1 © IEC:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope and object . 6
2 Normative references. 6
3 Terms, definitions and abbreviations . 6
3.1 General . 6
3.2 Terms and definitions . 9
3.3 Abbreviated terms . 10
4 Apparatus . 11
5 Test specimen . 11
6 Procedure . 11
7 Calculations . 12
8 Test results . 12
Annex A (informative) Background on transient phenomenon in optical amplifiers . 13
Annex B (informative) Slew rate effect on transient gain response . 16
Bibliography . 19

Figure 1 – Definitions of rise and fall times (a) in the case of a channel addition event,
and (b) in the case of a channel removal event . 7
Figure 2 – OFA transient gain response for (a) a channel removal event, and (b) a
channel addition event . 8
Figure 3 – Generic transient control measurement setup . 11
Figure A.1 – EDFA pump control for a chain of 5 EDFAs and 4 fibre spans . 14
Figure A.2 – EDFA spectral hole depth for different gain compression . 15
Figure A.3 – EDFA spectral hole depth for different wavelengths . 15
Figure B.1 – Transient gain response at various slew rates . 17
Figure B.2 – 16 dB add/drop (rise time = 10 µsec) . 18
Figure B.3 – 16 dB add/drop (rise time = 1 000 µsec) . 18

Table 1 – Examples of add and drop scenarios for transient control measurement . 12
Table 2 – Typical results of transient control measurement . 12
Table B.1 – Transient gain response for various rise time and fall time (16 dB add/drop) . 17

61290-4-1 © IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL AMPLIFIERS –
TEST METHODS –
Part 4-1: Gain transient parameters –
Two-wavelength method
FOREWORD
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International Standard IEC 61290-4-1 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:
CDV Report on voting
86C/956/CDV 86C/1011/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.

– 4 – 61290-4-1 © IEC:2011
A list of all parts of the IEC 61290 series, published under the general title Optical amplifiers –
Test methods can be found on the IEC website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
The committee has decided that the contents of this publication will remain unchanged until the
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61290-4-1 © IEC:2011 – 5 –
INTRODUCTION
This part of IEC 61290-4 is devoted to the subject of Optical Amplifiers (OAs). The technology
of optical amplifiers is quite new and still emerging; hence amendments and new editions to
this standard can be expected.
Each abbreviation introduced in this standard is explained in the text at least the first time it
appears. However, for an easier understanding of the whole text, a list of all abbreviations used
in this standard is given in 3.3.
Background information on the transient phenomenon in erbium-doped fibre amplifiers and the
consequences on fibre optic systems is provided in Annex A and on slew rate effects in
Annex B.
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