Beating signal monitoring module, terahertz wave generation device and optical signal monitoring device including the beating signal monitoring module
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United States of America Patent
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Aug 9, 2016
Grant Date -
Jun 26, 2014
app pub date -
Sep 10, 2013
filing date -
Dec 21, 2012
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Abstract
The inventive concept relates to a beating signal monitoring module and a terahertz wave generation device and an optical signal monitoring device that including the beating signal monitoring module. The beating signal monitoring module includes a nonlinear unit generating an optical signal including a FWM light in response to a beating signal generated from a first light and a second light; a filter unit separating the FWM light from the optical signal and outputting the separated FWM light; and a monitoring unit monitoring the beating signal using the separated FWM light. The beating signal monitoring module and a terahertz wave generation device and an optical signal monitoring device that including the beating signal monitoring module can effectively monitor a beating signal being generated by two lasers using a Four Wave Mixing signal.
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