Tunable Optical Apparatus
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United States of America Patent
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Issued Date -
Oct 27, 2016
app pub date -
Apr 12, 2016
filing date -
Apr 23, 2015
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Abstract
A tunable optical apparatus comprises a silicon photonic integrated circuit region and a semiconductor optical amplifier optically coupled to each other. Tuning is achieved by having a first variable optical gate in off-state so as to substantially avoid attenuation of power of a first optical signal propagating through a first optical path and by having a second variable optical gate in on-state so as to attenuate power of a second optical signal propagating through a second optical path, the first optical path and the second optical path being optically coupled to the semiconductor optical amplifier.
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