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1.发明授权公开(公告)号：US11274970B1
公开(公告)日：2022-03-15
申请号：US16686349
申请日：2019-11-18
Inventor： Jungwon Kim , Kyoungsik Yu , Youngjae Jeong , Chan-Gi Jeon
Abstract: The present disclosure relates to an integrated phase detector. In an embodiment, a first multi-mode interference coupler that receives the optical signal and outputs optical signals with a plurality of modes, and a second multi-mode interference coupler that receives one of the optical signals with the plurality of modes and a modulated signal generated through performing a phase modulation on another of the optical signals with the plurality of modes by the microwave signal, and outputs a first optical interference signal and a second optical interference signal may be included.
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公开(公告)号：US11469848B2
公开(公告)日：2022-10-11
申请号：US16784369
申请日：2020-02-07
Inventor： Jungwon Kim , Chan-Gi Jeon , Yongjin Na , Dohyeon Kwon
IPC: H04B10/00 , H04J14/02 , G01J9/02 , H04B10/50 , H04B10/508
Abstract: A multi-channel sensing system is disclosed. The multi-channel sensing system includes a multi-channel sensor connector that wavelength-divides an optical pulse output from a pulsed laser into a plurality of channels in a spectrum domain, transmits each of a plurality of optical sub-pulses generated from the wavelength division to a channel path allocated for each channel in multi-channel paths, multiplexes the plurality of optical sub-pulses passed through the multi-channel paths and outputs an optical signal including the multiplexed optical sub-pulses; and a multi-channel optical phase detector that receives the optical signal output from the multi-channel connector and a reference signal which is synchronized to the pulse laser, and detects a channel-specific electrical signal that corresponds to a timing error between each of the plurality of optical sub-pulses included in the optical signal and the reference signal. At lease one of sensors is connected to at least one of the multi-channel paths.
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3.发明申请公开(公告)号：US20200266913A1
公开(公告)日：2020-08-20
申请号：US16784369
申请日：2020-02-07
Inventor： Jungwon KIM , Chan-Gi Jeon , Yongjin Na , Dohyeon Kwon
IPC: H04J14/02 , H04B10/50 , G01J9/02 , H04B10/508
Abstract: A multi-channel sensing system is disclosed. The multi-channel sensing system includes a multi-channel sensor connector that wavelength-divides an optical pulse output from a pulsed laser into a plurality of channels in a spectrum domain, transmits each of a plurality of optical sub-pulses generated from the wavelength division to a channel path allocated for each channel in multi-channel paths, multiplexes the plurality of optical sub-pulses passed through the multi-channel paths and outputs an optical signal including the multiplexed optical sub-pulses; and a multi-channel optical phase detector that receives the optical signal output from the multi-channel connector and a reference signal which is synchronized to the pulse laser, and detects a channel-specific electrical signal that corresponds to a timing error between each of the plurality of optical sub-pulses included in the optical signal and the reference signal. At lease one of sensors is connected to at least one of the multi-channel paths.
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