Optical modulator and optical transmission device using same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12189265
APP PUB NO 20220146902A1
SERIAL NO

17605690

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An optical modulator includes an optical modulation element having a plurality of signal electrodes, a plurality of signal input terminals, a relay substrate on which a plurality of signal conductor patterns that electrically connect the signal input terminals and the signal electrodes and a plurality of ground conductor patterns are formed, and a housing. A signal input side and signal output side of the relay substrate face each other in a plan view, and electromagnetic wave propagation suppressing units that are made of a material that absorbs electromagnetic waves and have a height protruding from a surface of the relay substrate are provided, along at least one side of an end portion of the signal input side and an end portion of the signal output side in the plan view.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO OSAKA CEMENT CO LTDTOKYO 102-8465

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyazaki, Norikazu Tokyo, JP 106 218
Sugamata, Toru Tokyo, JP 63 148

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