Comparison device of the wavelength multiplexing and other objects and advantages of the monochromatic sources

摘要

Device of the comparison between n wavelengths nominal (lambdaei) and the wave lengths of optical signals respectively coupled to the input ports (gei) of a generally connected to network (r) of the guides (et), said generally comprising a main output port (gs (m)) designed to collect the combination of said signals, characterized in that the generally comprises two outlet ports of the control (a, b) respectively situated in the vicinity of the focusing points corresponding to the commands of interference m - 1 and m + 1 of the network (r).