Optical modulator
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United States of America
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Jan 7, 2020
Grant Date -
Apr 18, 2019
app pub date -
Apr 3, 2017
filing date -
Apr 3, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
An optical modulator is provided and includes a substrate that has an electro-optic effect, an optical waveguide that is formed on the substrate, a plurality of control electrodes that control a light wave propagated through the optical waveguide, and a plurality of light receiving elements that detect a light wave propagated through the optical waveguide. The optical modulator has two or more independent optical waveguide modulation portions. The light receiving elements are respectively provided in an upper part of the substrate with respect to the independent optical waveguide modulation portions. A wiring substrate is located above the substrate. A plurality of electric wirings are located on the wiring substrate. The plurality of electric wirings are disposed to extend in the vicinity of one side of the wiring substrate, are electrically connected to the light receiving elements, and output a signal detected by the light receiving elements to the outside.
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