| 摘要 |
An optical multiplexing/demultiplexing device has a structure wherein a curved waveguide for input, linear waveguides for output, and a planar waveguide are provided within a substrate. The curved waveguide is discontinuous, and the curved waveguide and planar waveguide are separated from each other with an equal interval interposed therebetween. A light signal that is input to the curved waveguide is reflected by discontinuous surfaces of the curved waveguide. Afterwards, the respective reflected light signals are distributed to corresponding linear waveguides through the planar waveguide for every wavelength and focused thereon. Further, the light signals of the respective wavelengths, which are input into the linear waveguides, are multiplexed by and focused on the discontinuous portions of the curved waveguide.
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