Guidelines for combining different single-mode fibre sub-categories

IEC TR 62000:2021 is available as IEC TR 62000:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC TR 62000:2021 provides guidelines concerning single-mode fibre inter-compatibility. A given category of single-mode fibre, for example B-655, can have different implementations by suitably optimising several of the following parameters: mode field diameter (hence effective area), chromatic dispersion coefficient, slope of the chromatic dispersion curve, cable cut-off wavelength. These guidelines indicate the items that are taken into account when planning to connect
- different implementations of single-mode fibres of the same category, for example different implementations of Class B single-mode fibres, and
- single-mode fibres of different sub-categories, for example B-652.B with B-655.C.
This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- global uniformity of terminology concerning fibre classes, categories and sub-categories throughout the document;
- updating and aligning to the new naming convention of IEC 60793-2-50 for class B fibre categories and sub-categories;
- updating and aligning with IEC 60793-2-50 as per supported fibre sub-categories;
- additional guidelines concerning combination of fibre parameters: chromatic dispersion and slope, polarization mode dispersion;
- additional guidelines concerning non-linear affects;
- updating of bibliographical references.

General Information

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Drafting Committee
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PPUB - Publication issued
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IEC TR 62000

Edition 3.0 2021-09


Guidelines for combining different single‑mode fibre sub‑categories
IEC TR 62000:2021-09(en)

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IEC TR 62000


Edition 3.0 2021-09





Guidelines for combining different single‑mode fibre sub‑categories




ICS 33.180.10 ISBN 978-2-8322-1021-2

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® Registered trademark of the International Electrotechnical Commission

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– 2 – IEC TR 62000:2021 © IEC 2021
1 Scope . 5
2 Normative references. 6
3 Abbreviated terms . 6
4 System issues . 6
5 Optical fibre issues . 7
5.1 General . 7
5.2 Cut-off wavelength . 7
5.3 Splicing issues . 7
5.4 Combination of fibre parameters: chromatic dispersion coefficient and slope,
polarization mode dispersion (PMD) . 8
5.5 Non-linear effects . 8
6 Launch fibres, pigtails, patch-cords and jumper cables . 9
7 Attenuation .

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