Wavelength multiplexing processing apparatus
AssigneeFujitsu Limited
InventorsGoji Nakagawa, Hideyuki Miyata
Life of this patent
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Abstract
A wavelength multiplexing processing apparatus for use with a wavelength division multiplexing system is disclosed which uses a single AWG to achieve reduction in cost, size and loss. The wavelength multiplexing processing apparatus includes a waveguide device wherein a plurality of incoming and outgoing waveguides, a first slab waveguide and a plurality of channel waveguides are formed on a substrate, a mirror array device and a lens device. The plane direction angles of reflecting mirrors which reflect optical signal components incoming thereto are set so that reflected light of an optical signal component incoming from one of the plural incoming and outgoing waveguides may go out from one of the plural incoming and outgoing waveguides.
Claims15
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 plurality of channel waveguides of different lengths from each other formed on said substrate and connected to said first slab circuit;
- 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 light paths of the incoming lights;
- 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 plural channel 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.
Dependencies are inferred from the claim text.