Nonreciprocal waveguide, isolator, optical switch, optical transceiver, data center, and manufacturing method

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United States of America Patent

PATENT NO 11982888
APP PUB NO 20220382084A1
SERIAL NO

17804261

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A nonreciprocal waveguide includes a substrate, a light propagation path, a magnetic member, an insulating layer, and a mask. The light propagation path is positioned at the substrate along a substrate surface. The magnetic member is positioned at the substrate along part of the light propagation path in a longitudinal direction. The insulating layer is positioned at the substrate and contains the light propagation path and the magnetic member. Inside the insulating layer, the mask is positioned further away than the light propagation path from the substrate. As seen from a direction perpendicular to the substrate surface, the mask overlaps at least part of the light propagation path in a width direction from a side of the light propagation path opposite to the magnetic member in the width direction. The mask is positioned in at least a range in which the magnetic member is positioned in the longitudinal direction.

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Patent Owner(s)

Patent OwnerAddress
KYOCERA CORPORATIONKYOTO-SHI KYOTO-FU 612-8501

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Motoji, Reona Yokohama, JP 2 0
Sugita, Tomoya Machida, JP 55 380

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