Patent ID: 7483633
Filing Date: 2009-01-27
Classification: H04J,H04Q

Abstract:
1. An optical communication network, comprising: a transmission system that generates optical transmission signals which are constituted by wavelength-division multiplexing plural series of time-division multiplexed optical signals, by assigning plural signal strings to optical wavelengths which are fewer than the number of said signal strings for each signal unit constituting said signal string; an optical communication path that propagate the optical transmission signals which are output from said transmission system; and a receiving system that restores said signal units by wavelength-division demultiplexing and time-division demultiplexing the optical transmission signals which are input from said optical communication path, and restoring the plural signal strings by rearranging the restored signal units; wherein said transmission system further comprises: wherein said transmitters output a request signal to request the specifications of the output timing and optical wavelength of each of the signal unit, said receiving system determines the output timing and optical wavelength of the signal unit responding to the request signal, and outputs the decision result as a response signal, and said transmitters output the signal unit at the timing and with the optical wavelength according to the specifications of the response signal; and wherein said transmitter further comprises: