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公开(公告)号：US09477013B2
公开(公告)日：2016-10-25
申请号：US14619092
申请日：2015-02-11
Inventor： Dong Hun Lee , Jong Sool Jeong , Ki Soo Kim , Hyun Soo Kim , Mi Ran Park , O Kyun Kwon
IPC: G02F1/03 , G02F1/07 , G02B1/113 , G02B6/14 , G02F1/01 , G02F1/017 , G02F1/015 , H01S5/026 , H01S5/50
CPC classification number: G02B1/113 , G02B6/12004 , G02B6/14 , G02B2006/12078 , G02B2006/12142 , G02B2006/12152 , G02F1/0102 , G02F1/01708 , G02F2001/0157 , H01S5/0261 , H01S5/0265 , H01S5/50
Abstract: Disclosed is an optical source device. The optical source device includes: a mode converter configured to be optically coupled with an optical fiber; a semiconductor optical amplifier coupled with the mode converter, and configured to amplify an optical signal input through the optical fiber; and an electro absorption modulator coupled to the optical amplifier, and configured to modulate the amplified optical signal and output the modulated optical signal, in which each of the semiconductor optical amplifier and the optical absorption modulator includes a heater.
Abstract translation: 公开了一种光源装置。 光源装置包括：模式转换器，被配置为与光纤光学耦合; 与模式转换器耦合的半导体光放大器，被配置为放大通过光纤输入的光信号; 以及耦合到所述光放大器的电吸收调制器，并且被配置为调制所放大的光信号并输出所述调制的光信号，其中所述半导体光放大器和所述光吸收调制器中的每一个包括加热器。
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公开(公告)号：US11269178B2
公开(公告)日：2022-03-08
申请号：US16668574
申请日：2019-10-30
Inventor： Eui Su Lee , Kyung Hyun Park , Il Min Lee , Kiwon Moon , Dong Woo Park , Hyun Soo Kim , Ho Jin Lee , Jeong Woo Park , Jun Hwan Shin , Kyeong Sun Choi , Dahye Choi
Abstract: Provided are a polygon mirror assembly and a scan device. A polygon mirror assembly includes: a polygon mirror including a plurality of reflection surfaces spaced apart from a rotation axis by a predetermined distance; a first motor for rotating the polygon mirror around the rotation axis; a second motor for moving the polygon mirror in a first axial direction such that the rotation axis is tilted while the first motor rotates the polygon mirror; and a clock signal extraction surface for extracting a clock signal for detecting a change in a rotational speed of the first motor.
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公开(公告)号：US11201250B2
公开(公告)日：2021-12-14
申请号：US16848826
申请日：2020-04-14
Inventor： Dong Woo Park , Kyung Hyun Park , Jeong Woo Park , Jun Hwan Shin , Eui Su Lee , Hyun Soo Kim , Kiwon Moon , Il Min Lee
IPC: H01L29/872 , H01L29/205 , H01L29/47 , H01L29/66 , H01L21/285 , H01L21/306
Abstract: A Schottky barrier diode includes a substrate, a first semiconductor layer formed on the substrate, a second semiconductor layer formed on the first semiconductor layer, and a metal layer formed on the second semiconductor layer to form a Schottky barrier, wherein the first semiconductor layer and the second semiconductor layer are formed of different materials, and a conduction band offset between the first semiconductor layer and the second semiconductor layer is less than a set value.
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4.发明授权Method and apparatus for selecting wavelength by wavelength tunable optical receiver 有权波长可调光接收机选择波长的方法和装置公开(公告)号：US09420357B2
公开(公告)日：2016-08-16
申请号：US14619124
申请日：2015-02-11
Inventor： Jong Sool Jeong , Dong Hun Lee , Mi Ran Park , Byung Seok Choi , Hyun Soo Kim , O Kyun Kwon
CPC classification number: H04Q11/0005 , H04B10/675 , H04B2210/075 , H04J14/0276 , H04Q2011/0009 , H04Q2011/0018
Abstract: Disclosed are a method and an apparatus for selecting a wavelength by a wavelength tunable optical receiver. The method of selecting a wavelength of a wavelength tunable optical receiver includes: receiving, by the wavelength tunable optical receiver, an optical signal from a wavelength tunable optical transmitter; filtering, by the wavelength tunable optical receiver, the optical signal through a low frequency band electrical signal filter, and obtaining a low frequency signal; determining, by the wavelength tunable optical receiver, whether the low frequency signal is a valid signal based on a current value of the low frequency signal; and when the low frequency signal is the valid signal, obtaining, by the wavelength tunable optical receiver, an enable condition of a wavelength tunable optical filter through which the low frequency signal is selected, in which the low frequency signal includes a control/monitoring signal.
Abstract translation: 公开了一种通过波长可调光学接收器选择波长的方法和装置。 选择波长可调光学接收机的波长的方法包括：由波长可调光学接收机接收来自波长可调光发射机的光信号; 通过波长可调光接收器对光信号进行滤波，通过低频带电信号滤波器获得低频信号; 基于所述低频信号的当前值，由所述波长可调光学接收机确定所述低频信号是否为有效信号; 并且当低频信号是有效信号时，由波长可调光学接收器获得选择低频信号的波长可调光滤波器的使能条件，其中低频信号包括控制/监视信号 。
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公开(公告)号：US12191632B2
公开(公告)日：2025-01-07
申请号：US17183680
申请日：2021-02-24
Inventor： Hyun Soo Kim , Kyung Hyun Park , Eui Su Lee , Il Min Lee , Kiwon Moon , Dong Woo Park , Jun-Hwan Shin
Abstract: Disclosed is a terahertz wave generating apparatus. The terahertz wave generating apparatus includes a dual mode laser including a first single mode laser that generates a first beating signal, a gain adjustment region that modulates the first beating signal, and a second single mode laser that generates a second beating signal, and a photomixer that mixes the modulated first beating signal and the second beating signal, and that modulates a current supplied based on a beating frequency of the mixed beating signals to generate a terahertz wave signal, and the gain adjustment region is formed between the first single mode laser and the second single mode laser, and the first beating signal is output from the first single mode laser to the gain adjustment region and is modulated based on a reverse bias voltage supplied to the gain adjustment region.
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Patent Agency Ranking
公开(公告)号：US20210281045A1
公开(公告)日：2021-09-09
申请号：US17183680
申请日：2021-02-24
Inventor： Hyun Soo Kim , Kyung Hyun PARK , Eui Su LEE , IL MIN LEE , Kiwon MOON , Dong Woo PARK , Jun-Hwan SHIN
Abstract: Disclosed is a terahertz wave generating apparatus. The terahertz wave generating apparatus includes a dual mode laser including a first single mode laser that generates a first beating signal, a gain adjustment region that modulates the first beating signal, and a second single mode laser that generates a second beating signal, and a photomixer that mixes the modulated first beating signal and the second beating signal, and that modulates a current supplied based on a beating frequency of the mixed beating signals to generate a terahertz wave signal, and the gain adjustment region is formed between the first single mode laser and the second single mode laser, and the first beating signal is output from the first single mode laser to the gain adjustment region and is modulated based on a reverse bias voltage supplied to the gain adjustment region.
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公开(公告)号：US20140270811A1
公开(公告)日：2014-09-18
申请号：US13939317
申请日：2013-07-11
Inventor： Mi-Ran PARK , Hyun Soo Kim , Jong Sool Jeong , O-Kyun Kwon
IPC: H04B10/60
CPC classification number: H04B10/60 , G02B6/4214 , G02B6/4281 , H04B10/2504 , H04B10/40 , H04B10/50
Abstract: A multi-channel optical receiving module includes a first substrate disposed on a bench, optical fibers disposed in grooves of the first substrate, a first lens disposed on the first substrate and collimating optical signals through the optical fibers, a second substrate disposed on the bench at a side of the first substrate, a light receiving device disposed on the second substrate, a second lens disposed over the light receiving device, a mirror reflecting the optical signals between the first lens and the second lens, and a block fixing the mirror. The block includes through-holes transmitting the optical signals between the first and second lenses without refraction of the optical signals.
Abstract translation: 多通道光接收模块包括设置在工作台上的第一衬底，设置在第一衬底的凹槽中的光纤，设置在第一衬底上的第一透镜，以及通过光纤准直光信号;第二衬底，设置在台架上 在第一基板的一侧，设置在第二基板上的光接收装置，设置在光接收装置上的第二透镜，反射第一透镜和第二透镜之间的光信号的反射镜和固定反射镜的块。 该块包括在第一和第二透镜之间传输光信号而不折射光信号的通孔。
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公开(公告)号：US11876143B2
公开(公告)日：2024-01-16
申请号：US17513805
申请日：2021-10-28
Inventor： Kiwon Moon , Kyung Hyun Park , Dong Woo Park , Jun-Hwan Shin , Eui Su Lee , Hyun Soo Kim , Il Min Lee
IPC: H01L31/102 , H01L29/88 , H01L31/0304 , G02F2/02 , H03B7/08
CPC classification number: H01L31/102 , G02F2/02 , H01L29/882 , H01L31/03048 , H03B7/08 , G02F2203/13
Abstract: Provided is a terahertz light source device including an antenna, a plurality of wire electrodes configured to connect the antenna to a power source, a capacitor connected to the wire electrodes between the antenna and the power source, and a plurality of resonance tunneling diodes connected to the wire electrodes between the capacitor and the antenna, and configured to generate a terahertz wave by coupling with the capacitor as a parallel resonance circuit with respect to the power source.
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公开(公告)号：US10082627B2
公开(公告)日：2018-09-25
申请号：US15808640
申请日：2017-11-09
Inventor： Kyung Hyun Park , Il Min Lee , Eui Su Lee , Ho Jin Lee , Sang Pil Han , Hyun Soo Kim , Ki Won Moon , Dong Woo Park
CPC classification number: G02B6/262 , G02B6/10 , G02B6/24 , G02B6/264 , G02B27/0927 , G02B27/0944
Abstract: An apparatus providing a terahertz (THz) wave may comprise at least one THz wave generator each of which generates a THz wave; at least one first phase adjuster adjusting a phase of the generated THz wave; at least one waveguide part receiving and combining the at least one phase-adjusted THz wave radiated from the at least one first phase adjuster, and guiding the combined THz wave; at least one second phase adjuster adjusting a phase of the combined THz wave from the at least one waveguide part, which is connected to the at least one waveguide part or disposed in a portion of the at least one waveguide part; and an output module outputting the THz wave guided from the at least one waveguide part.
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公开(公告)号：US08902937B2
公开(公告)日：2014-12-02
申请号：US13848247
申请日：2013-03-21
Inventor： Ki-Hong Yoon , O-Kyun Kwon , Kisoo Kim , Byungseok Choi , Hyun Soo Kim , Su Hwan Oh
CPC classification number: H01S3/10 , H01S3/10053 , H01S5/0085 , H01S5/02284 , H01S5/026 , H01S5/0265 , H01S5/141 , H01S5/142
Abstract: The present disclosure relates to a compact external cavity tunable laser apparatus. The laser apparatus includes a substrate, an external cavity tunable reflecting unit that reflects laser light entering from the outside on the substrate and selects and varies a wavelength of the reflected laser light, an optical fiber that outputs the laser light on the substrate; and an highly integrated light source that integrates the laser light input from the external cavity tunable reflecting unit using inclined input and output waveguides, a curved waveguide, and a straight waveguide to output the integrated laser light to the optical fiber in order to match an optical axis formed with the external cavity tunable reflecting unit with an optical axis formed with an optical fiber.
Abstract translation: 本公开涉及一种紧凑的外部可调谐激光装置。 该激光装置包括：基板，外部可调谐反射部，其反射从基板外部进入的激光，并选择并改变反射的激光的波长;将激光输出到基板上的光纤; 以及高度集成的光源，其使用倾斜的输入和输出波导，弯曲波导和直波导将来自外部腔体可调谐反射单元的激光输入，以将集成的激光输出到光纤以匹配光学 轴与外腔可调谐反射单元形成，光轴由光纤形成。
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