Patent ID: 6591036
Filing Date: 2003-07-08
Classification: G02B

Abstract:
An optical multiplexing/demultiplexing device comprising:a substrate; a first curved waveguide formed within said substrate, said first curved waveguide being partly separated by discontinuous portions, said first curved waveguide having reflecting surfaces at said discontinuous portions; a second set of waveguides; and a planar waveguide formed within said substrate and connected to said second set of waveguides, said planar waveguide being separated from said first curved waveguide by an equal interval between said planar waveguide and said first curved waveguide; wherein said first curved waveguide is structured and arranged such that if a light signal is input to said first curved waveguide, the light signal is reflected by said reflecting surfaces and demultiplexed and focused on said second set of waveguides through said planar waveguide for every wavelength of the light signal, and such that if light signals are input to said second set of waveguides, the light signals are respectively focused on said reflecting surfaces through said planar waveguide and muliplexed by said first curved waveguide.