Reducing loss at intersection in optical waveguides

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United States of America Patent

PATENT NO 8948551
APP PUB NO 20130101256A1
SERIAL NO

13807584

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Abstract

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A core intersection in an optical waveguide formed of a plurality of cores and a clad that surrounds the cores is disclosed, the structure characterized in that the same material as that of the cores is added to two planes, upper and lower planes, of each of core intersection spaces where the plurality of cores intersect (instead of using a clad material). The structure of a core intersection in an optical waveguide formed of a plurality of cores and a clad is disclosed, the structure characterized in that four planes that divide (isolate) each of core intersection spaces where the plurality of cores intersect, that is, four discontinuity spaces between the core intersection space and the cores connected thereto, are filled with the same material as that of the clad (instead of using a core material so that the core intersection space is seamlessly connected to surrounding core intersection spaces).

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Héroux, Jean Benoit Tokyo, JP 14 94
Kohara, Sayuri Kanagawa, JP 8 83
Taira, Yoichi Kanagawa, JP 75 1354

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