Patent ID: 7079728

Claim:
A wavelength multiplexing processing apparatus, comprising: a waveguide device including a substrate, a plurality of incoming and outgoing waveguides formed on said substrate each for allowing an optical signal to come in or go out therethrough, a first slab waveguide formed on said substrate and connected to said plural incoming and outgoing waveguides, and a set of a plurality of channel waveguides of different lengths from each other formed on said substrate and connected to said first slab waveguide; a mirror array device including at least one mirror array wherein a reflecting mirror whose angle in a plane direction can be changed is disposed corresponding to each of the optical signals; and a lens device for condensing, when a wavelength-multiplexed optical signal is introduced into said plural incoming and outgoing waveguides, optical signal components outgoing from said set of waveguides for the individual optical signal components having different light paths so that the condensed optical signal components go out to the corresponding reflecting mirrors of said mirror array device and for introducing reflected light from the reflecting mirrors to an end face of said substrate adjacent said channel waveguides; the plane direction angles of the reflecting mirrors which reflect the incoming optical signal components being set so that reflected light of an optical signal component incoming from one of said plural incoming and outgoing waveguides may go out from one of said plural incoming and outgoing waveguides through said set of waveguides and said first slab waveguide.