Semiconductor optical modulation device
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United States of America Patent
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Oct 31, 2017
Grant Date -
Sep 17, 2015
app pub date -
Dec 29, 2014
filing date -
Mar 14, 2014
priority date (Note) -
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Abstract
A first resistor connected in parallel to a semiconductor optical modulator having first ends, the first resistor and first ends connected to a reference potential. A first end of a first transmission line is connected to second ends of the semiconductor optical modulator and the first resistor. A second transmission line is connected in series to the first transmission line and has an impedance lower than that of the first resistor. A first end of the second transmission line is connected to a second end of the first transmission line. A third transmission line is connected in series to the first and second transmission lines and has an end connected to a second end of the second transmission line, and has an impedance equal to that of the first transmission line. A second resistor and a capacitor are connected in series between the third transmission line and the reference potential.
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