IEC 61291-2:2023

IEC 61291-2 ®
Edition 5.0 2023-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Optical amplifiers –
Part 2: Single channel applications – Performance specification template

IEC 61291-22023-02 RLV(en)
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IEC 61291-2 ®
Edition 5.0 2023-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Optical amplifiers –
Part 2: Single channel applications – Performance specification template
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.30 ISBN 978-2-8322-6525-3

– 2 – IEC 61291-2:2023 RLV © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 2
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 8
4 Performance specification templates for power amplifiers . 8
5 Performance specification templates for pre-amplifiers . 11
6 Performance specification templates for line amplifiers . 15
7 Electromagnetic compatibility (EMC) requirements . 19
8 Laser safety requirements . 19
Bibliography . 20

Table 1 – Minimum relevant parameters for power amplifiers based on OFA
components or modules using active fibre specified for single channel applications . 9
Table 2 – Minimum relevant parameters for power amplifiers based on SOA
components specified for single channel applications . 10
Table 3 – Minimum relevant parameters for pre-amplifiers based on OFA components
or modules using active fibre specified for single channel applications . 12
Table 4 – Minimum relevant parameters for pre-amplifiers based on SOA components
specified for single channel applications . 14
Table 5 – Minimum relevant parameters for line amplifiers based on OFA components
or modules using active fibre specified for single channel applications . 16
Table 6 – Minimum relevant parameters for line amplifiers based on SOA components
specified for single channel applications . 18

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL AMPLIFIERS –
Part 2: Single channel applications –
Performance specification template

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,
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition IEC 61291-2:2016. A vertical bar appears in the margin
wherever a change has been made. Additions are in green text, deletions are in
strikethrough red text.
– 4 – IEC 61291-2:2023 RLV © IEC 2023
IEC 61291-2 has been prepared by subcommittee 86C: Fibre optic systems and active devices,
of IEC technical committee 86: Fibre optics. It is an International Standard.
This fifth edition cancels and replaces the fourth edition published in 2016. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the test methods for gain ripple in Table 2, Table 4 and Table 6 refer now to the IEC 61290-1
series;
b) the SOA definition (3.1.3) refers now to IEC 61931.
The text of this International Standard is based on the following documents:
Draft Report on voting
86C/1849/FDIS 86C/1858/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 61291 series, published under the general title Optical amplifiers,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document 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.

INTRODUCTION
This document is devoted to the subject of optical amplifiers. The technology of optical
amplifiers is still rapidly evolving, hence amendments and new additions to this document can
be expected. Each abbreviated term introduced in this document is generally explained in the
text the first time it appears. However, for an easier understanding of the whole text, a list of all
abbreviated terms used in this document is given in Clause 3.

– 6 – IEC 61291-2:2023 RLV © IEC 2023
OPTICAL AMPLIFIERS –
Part 2: Single channel applications –
Performance specification template

1 Scope
This part of IEC 61291 provides a performance specification template applicable to optical
amplifiers (OAs) used in single channel applications. Multichannel applications are covered in
IEC 61291-4.
The objective of this performance specification template is to provide a framework for the
preparation of performance standards and/or product specifications on defining the
performance of OA devices used in single channel applications. In the performance standards
or product specifications, other specifications such as ratings, operating conditions, tests and
pass/fail criteria could be included in addition to the requirements based on this performance
specification template. In addition to the requirements specified in this template, a performance
standard or product specification could include other parameters, such as ratings, operating
conditions, tests, and pass/fail criteria.
For a particular application, product specification writers may could add specification
parameters and/or groups of specification parameters for particular applications to this template,
without removing the parameters specified in this document. However, product specification
writers should not remove specification parameters specified in this standard.
2 Normative references
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.
IEC 60825-1, Safety of laser products – Part 1: Equipment classification and requirements
IEC 61000 (all parts), Electromagnetic compatibility (EMC)
IEC 61000-6-1, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards – Immunity
standard for residential, commercial and light-industrial environments
IEC 61000-6-3, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission
standard for equipment in residential environments
IEC 61290-1 (all parts), Optical amplifiers – Test methods – Part 1: Power and gain parameters
IEC 61290-3 (all parts), Optical amplifiers – Test methods – Part 3: Noise figure parameters
IEC 61290-4-3, Optical amplifiers – Test methods – Part 4-3: Power transient parameters –
Single channel optical amplifiers in output power c
...