Optical waveguide device and module

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10126502
APP PUB NO 20170146742A1
SERIAL NO

15416853

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Abstract

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In a waveguide device, unnecessary optical power is appropriately terminated. According to an embodiment of the present invention, the waveguide device has a termination structure filled with a light blocking material to terminate light from a waveguide end. In the termination structure, a cladding and a core are removed to form a groove on an optical waveguide. The groove is filled with a material (light blocking material) that attenuates the intensity of light. Thus, light input to the termination structure is attenuated by the light blocking material, suppressing crosstalk which possibly effects on other optical devices. Thus, such a termination structure can restrain crosstalk occurred in optical devices integrated in the same substrate and can also suppress crosstalk which possibly effects on any other optical device connected directly to the substrate.

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Patent Owner(s)

  • NTT ELECTRONICS CORPORATION; NEC CORPORATION AND NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishikawa, Takanori Yokohama, JP 48 552
Itoh, Mikitaka Atsugi, JP 14 214
Nagano, Mitsuru Yokohama, JP 9 65
Shibazaki, Tomoyo Yokohama, JP 6 38
Terui, Hiroshi Yokohama, JP 23 523
Yanagisawa, Masahiro Yokohama, JP 85 1098

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