Standard Specification for ITU G 652 Optical Fiber

Recommendation ITU-T G.652 describes the geometrical, mechanical and transmission attributes of a single-mode optical fibre and cable which has zero-dispersion wavelength around 1310 nm. The ITU-T G.652 fibre was originally optimized for use in the 1310 nm wavelength region, but can also be used in the 1550 nm region. This is the latest revision of a Recommendation that was first created in 1984 and deals with some relatively minor modifications. This revision is intended to maintain the continuing commercial success of this fibre in the evolving world of high-performance optical transmission systems.

The following tables summarize the recommended values for a number of categories of fibres that satisfy the objectives of this Recommendation. These categories are largely distinguished on the basis of PMD requirements and attenuation requirement at 1383 nm. See Appendix I for information about transmission distances and bit-rates relative to PMD requirements.

Table 1, ITU-T G.652.A attributes, contains the recommended attributes and values needed to support applications such as those recommended in [ITU-T G.957] and [ITU-T G.691] up to STM-16, as well as 10 Gbit/s up to 40 km (Ethernet) and STM-256 for [ITU-T G.693].

Table 2, ITU-T G.652.B attributes, contains recommended attributes and values needed to support higher bit rate applications, up to STM-64, such as some in [ITU-T G.691] and [ITU-T G.692], STM-256 for some applications in [ITU-T G.693] and [ITU-T G.959.1]. Depending on the application, chromatic dispersion accommodation may be necessary.

Table 3, ITU-T G.652.C attributes, is similar to ITU-T G.652.A, but allows transmissions in portions of an extended wavelength range from 1360 nm to 1530 nm. Rec. ITU-T G.652 (11/2009) 7

Table 4, ITU-T G.652.D attributes, is similar to ITU-T G.652.B, but allows transmissions in portions of an extended wavelength range from 1360 nm to 1530 nm