The most common frequency grid used for fiber-optic communication is that used for channel spacing in Dense Wavelength Division Multiplexing (DWDM) at wavelengths around 1550 nm and defined by ITU-T G.694.1.[1] The grid is defined relative to 193.1 THz and extends from 191.7 THz to 196.1 THz with 100 GHz spacing. While defined in frequency, the grid is often expressed in terms of wavelength, in which case it covers the wavelength range of 1528.77 nm to 1563.86 nm with approximately a 0.8 nm channel spacing.
For practical purposes, the grid has been extended to cover 186 THz to 201 THz and subdivided to provide 50 GHz and 25 GHz spaced grids.
References
^ITU-T G.694.1, "Spectral grids for WDM applications: DWDM frequency grid" ITU-T website
External links
Complete ITU grid table for 100 Ghz spacing
August 24, 2023
frequency, grid, telecommunications, frequency, grid, table, central, frequencies, corresponding, wavelengths, channels, allowed, communications, system, most, common, frequency, grid, used, fiber, optic, communication, that, used, channel, spacing, dense, wav. For telecommunications a frequency grid is a table of all the central frequencies and corresponding wavelengths of channels allowed in a communications system The most common frequency grid used for fiber optic communication is that used for channel spacing in Dense Wavelength Division Multiplexing DWDM at wavelengths around 1550 nm and defined by ITU T G 694 1 1 The grid is defined relative to 193 1 THz and extends from 191 7 THz to 196 1 THz with 100 GHz spacing While defined in frequency the grid is often expressed in terms of wavelength in which case it covers the wavelength range of 1528 77 nm to 1563 86 nm with approximately a 0 8 nm channel spacing For practical purposes the grid has been extended to cover 186 THz to 201 THz and subdivided to provide 50 GHz and 25 GHz spaced grids References Edit ITU T G 694 1 Spectral grids for WDM applications DWDM frequency grid ITU T websiteExternal links EditComplete ITU grid table for 100 Ghz spacing International Standardization Activities on Optical Interfaces Retrieved from https en wikipedia org w index php title Frequency grid amp oldid 1072243379, wikipedia, wiki, book, books, library,
