Faraday rotator and magneto-optical element

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United States of America Patent

PATENT NO 11971617
APP PUB NO 20210165252A1
SERIAL NO

17048117

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A Faraday rotator includes a magnetic circuit including first to third magnetic materials each provided with a through hole through which light passes, and a Faraday element disposed in the through hole. When a direction where light passes through the through hole is defined as a direction of an optical axis, the first magnetic material is magnetized in a direction perpendicular to the direction of the optical axis, the second magnetic material is magnetized in a direction parallel to the direction of the optical axis, and the third magnetic material is magnetized in a direction perpendicular to the direction of the optical axis, and a length of the Faraday element along the direction of the optical axis is shorter than a length of the second magnetic material along the direction of the optical axis.

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Patent Owner(s)

Patent OwnerAddress
NIPPON ELECTRIC GLASS CO LTDOTSU-SHI SHIGA 520-8639

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Suzuki, Futoshi Otsu, JP 16 13

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