Optical communication device and method of controlling optical modulator

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United States of America Patent

PATENT NO 9762330
SERIAL NO

14810541

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Abstract

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An optical communication device includes an optical modulator of a Mach-Zehnder type, a low frequency superimposing circuit configured to superimpose a low frequency signal on a substrate bias voltage applied to the optical modulator, a monitor configured to monitor a modulated light output from the optical modulator, and a substrate bias controller configured to control the substrate bias voltage based upon a low frequency component contained in a monitor signal output from the monitor.

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Patent Owner(s)

  • FUJITSU OPTICAL COMPONENTS LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Toya, Akihiro Kawasaki, JP 75 340

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