Santec Corporation

Masataka Tei

Two set of filter chips on the upper and lower surfaces, each of which has a wavelength characteristic corresponding to each wavelength component of wavelength-multiplexed light, are mounted on a transparent substrate to make an optical filter element. When the wavelength-multiplexed light is inputted to the optical filter element via an optical fiber and when the same light components as those having the wavelengths demultiplexed by an optical fiber is also inputted, the demultiplexed light and the replaced wavelength-multiplexed light will be obtained at another optical fibers, respectively.

Wavelength tunable multiplexing and demultiplexing filter device and wavelength routing device

Filter chips, each of which has a wavelength characteristic corresponding to each wavelength component of wavelength-multiplexed light, are mounted on a transparent substrate to make an optical filter element. When wavelength-multiplexed light is input to the optical filter element via an optical fiber, the transmission and reflection characteristics vary depending upon which filter chip the light enters. The input position of the light to the optical filter element is changed by moving it in a direction that the filter chips are arranged, so that different selection characteristics can be obtained.

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Kasugai, Japan

Masataka Tei