OPTICAL CLOCK SIGNAL DISTRIBUTION SYSTEM IN WDM NETWORK

摘要

An optical clock signal distribution system in a WDM network; specifically, a system for controlling a clock synchronization between optical transmission devices constituting an optical communication network, the system comprising an optical clock generating means for converting a clock signal at a PRC level (primary reference clock) into an optical clock signal with a wavelength lambda 0, a wavelength multiplexing means for wavelength-multiplexing the optical signal with the wavelength lambda 0 together with other optical wavelength data, and a means for wavelength-dividing the above optical clock signal with the wavelength lambda 0 to a device in the network, characterized in that the above other optical wavelength data are processed with the above divided optical clock signal with the wavelength lambda 0 used as a reference clock in the above device in the network.