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ITU-T G.652

2009 Edition, November 2016

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Characteristics of a single-mode optical fibre and cable

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Description / Abstract:

This Recommendation describes a single-mode optical fibre and cable which has zero-dispersion wavelength around 1310 nm and can be used in the 1310 nm and 1550 nm regions. Both analogue and digital transmission can be used with this fibre.

The geometrical, optical, transmission and mechanical parameters are described below in three categories of attributes:

• fibre attributes are those attributes that are retained throughout cabling and installation;

• cable attributes that are recommended for cables as they are delivered;

• link attributes that are characteristic of concatenated cables, describing estimation methods of system interface parameters based on measurements, modelling or other considerations. Information for link attributes and system design are in Appendix I.

This Recommendation and the different performance categories found in the tables of clause 8 are intended to support the following related system Recommendations:

NOTE – Depending on the length of the links, dispersion accommodation can be necessary for some [b-ITU-T G.691], [b-ITU-T G.692] or [b-ITU-T G.959.1] application codes.

The meaning of the terms used in this Recommendation and the guidelines to be followed in the measurement to verify the various characteristics are given in [ITU-T G.650.1] and [ITU-T G.650.2]. The characteristics of this fibre, including the definitions of the relevant parameters, their test methods and relevant values, will be refined as studies and experience progress.