Patent ID: 7177542
Filing Date: 2007-02-13
Classification: H04B

Abstract:
1. A generator for generating at least M data carrier optical signals having selectable carrier wavelengths, where M is an integer greater than 1, said generator comprising N laser sources with constant and different wavelengths, where N is an integer greater than 1, and an optoelectronic modulator adapted to form one of said M optical data carrier signals, wherein said generator comprises: M−1 other optoelectronic modulators each adapted to form one of M−1 other optical data carrier signals, and an at least partially broadcasting optical switch having N input ports coupled to the N laser sources and only having M output ports coupled to the M modulators, the optical switch being adapted to send a plurality of modulators the same signal selected from the signals supplied by the laser sources, to form a plurality of signals, and wherein the at least partially broadcasting optical switch comprises: