ITU G.694.2

ITU G.694.2 is a standard developed by the International Telecommunication Union that specifies the precise wavelengths used for dense wavelength division multiplexing (DWDM) in fiber optic networks. It defines a series of dedicated color-coded wavelengths, allowing multiple data streams to travel simultaneously over the same fiber without interference. This standard ensures compatibility across equipment from different manufacturers, enabling high-capacity and efficient optical communication systems, such as internet backbones and data centers, to operate reliably and efficiently at specific, consistent wavelengths.