Optical device

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United States of America Patent

PATENT NO 12095227
APP PUB NO 20220231480A1
SERIAL NO

17617116

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Abstract

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A device includes a first cladding layer, a waveguide laser, an absorption layer, and a second cladding layer. The absorption layer is constituted by an oversaturation absorption body such as graphene. Also, the absorption layer is provided between the active layer and the distributed Bragg reflection portion. The absorption layer is formed below a core forming an optical waveguide between the active layer and a distributed Bragg reflection portion.

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Patent Owner(s)

Patent OwnerAddress
NIPPON TELEGRAPH AND TELEPHONE CORPORATION5-1 OTEMACHI 1-CHOME CHIYODA-KU TOKYO 1008116

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kakitsuka, Takaaki Tokyo, JP 17 15
Matsuo, Shinji Tokyo, JP 65 149
Nakao, Ryo Tokyo, JP 11 1
Yamaoka, Suguru Tokyo, JP 6 0

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