OPTICAL MODULATOR
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United States of America Patent
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N/A
Issued Date -
Jun 24, 2010
app pub date -
Jun 8, 2007
filing date -
Jun 14, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Herein disclosed is an optical modulator, comprising: an optical waveguide (3); and a traveling wave electrode (4) including an interaction portion (9) for modulating a phase of incident light and an input feed-through portion (7), in which the optical modulator further comprises at least one impedance transformation portion for reducing an impedance mismatching between a characteristic impedance of the interaction portion and at least one of characteristic impedances of the input feed-through portion, a connector electrically connected to the input feed-through portion, and an external circuit, at least one of the impedance transformation portions has a characteristic impedance which is different from a geometric mean of the characteristic impedances of said interaction portion and said input feed-through portion, a geometric mean of the characteristic impedances of the interaction portion and the connector, or a geometric mean of the characteristic impedances of the interaction portion and the external circuit.
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