Article · Wikipedia archive · Last revised Jun 19, 2026

G.652

G.652 is an international standard that describes the geometrical, mechanical, and transmission attributes of a single-mode optical fibre and cable, developed by the Standardization Sector of the International Telecommunication Union (ITU-T) that specifies the most popular type of single-mode optical fiber (SMF) cable.

Last revised
Jun 19, 2026
Read time
≈ 1 min
Length
191 w
Citations
4
Source
G.652
StatusIn force
Year started1984
Latest version10.0
August 2024
OrganizationITU-T
CommitteeStudy Group 15
Related standardsG.651.1, G.655, G.657
Domaintelecommunication
LicenseFreely available
Websitehttps://www.itu.int/rec/T-REC-G.652/

G.652 is an international standard that describes the geometrical, mechanical, and transmission attributes of a single-mode optical fibre and cable, developed by the Standardization Sector of the International Telecommunication Union (ITU-T) that specifies the most popular type of single-mode optical fiber (SMF) cable.12

History

G.652 was originally developed in 1984 by ITU-T Study Group XV. Subsequently, revisions were published in 1988, 1993, 1997, 2000, 2003, 2005, 2009, 2016, and 2024 (from 1997 as Study Group 15).2

Standard

The standard specifies the geometrical, mechanical, and transmission attributes of a single-mode optical fibre as well as its cable. The fibre has zero-dispersion wavelength around 1310 nm as per how it was designed, however it can also be used in the 1550 nm wavelength region.3

References

References

  1. ITU (2018-01-18). "Need a wall-outlet connector for FTTH installation? There's an ITU standard for that". ITU News. Archived from the original on 2021-04-05. Retrieved 2021-04-05.
  2. "G.652: Characteristics of a single-mode optical fibre and cable". www.itu.int. Archived from the original on 2017-05-19. Retrieved 2019-11-13.
  3. Alwayn, Vivek (2004). Optical Network Design and Implementation. Cisco Press. p. 71. ISBN 9781587051050.