Optical modulator
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United States of America Patent
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Feb 6, 2018
Issued Date -
N/A
app pub date -
Mar 24, 2017
filing date -
Mar 25, 2016
priority date (Note) -
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Abstract
An optical modulator includes a first optical modulation section and a second optical modulation section which use modulation signals different from each other when applying a modulation signal to the modulation electrode and performing optical modulation. In addition, a light-receiving element is disposed on a substrate, and the light-receiving element has a first light-receiving section that detects optical signal propagating from a first waveguide which guides the optical signal output from the first optical modulation section. In addition, the light-receiving element also has a second light-receiving section that detects an optical signal propagating through a second waveguide which guides the optical signal output from the second optical modulation section.
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