Patent ID: 6782210
Filing Date: 2004-08-24
Classification: H04Q

Abstract:
Multi-wavelength optical source equipment employed for an optical network system with a plurality of communication nodes connected with one another by a wavelength routing method and for converting wavelength of optical signals to desired wavelengths so as to transmit to desired communication nodes, the optical signals carrying control information concerning the routing of the optical signals from each of the communication nodes, comprising:first optical splitters for branching said optical signals transmitted front cach of the communication nodes to a first optical path and a second optical path; optical receivers for receiving said optical signals that have passed said first optical path; second optical splitters for branching said optical signals that have passed said second optical path to a plurality of optical paths; a plurality of optical gates for passing or intercepting said optical signals branched by said second splitters; wavelength converters for converting a wavelength of said optical signals outputted from said optical gates into desired wavelengths; a controller for controlling optical gates according to the control information relating to the routing of said optical signals received by said optical receivers; optical delay devices for adjusting an optical path length so that said optical signals that have passed said second optical path will not enter said optical gates before said optical gates are driven by said controller; multi-wavelength optical sources for supplying light having desired wavelengths to each of said wavelength converters; and wavelength multiplexers for multiplexing said optical signals whose wavelengths have been converted by said wavelength converters.