公开(公告)号：US20180136397A1

公开(公告)日：2018-05-17

申请号：US15808640

申请日：2017-11-09

Applicant: Electronics and Telecommunications Research Institute

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

IPC: G02B6/26 ,  G02B27/09

CPC classification number: G02B6/262 ,  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.

公开(公告)号：US20150125159A1

公开(公告)日：2015-05-07

申请号：US14258699

申请日：2014-04-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Soo KIM ,  Dong-Hun LEE ,  Mi-Ran PARK ,  Byung-Seok CHOI ,  Kisoo KIM ,  O-Kyun KWON

IPC: H04B10/50 ,  H04B10/516

CPC classification number: H04B10/501 ,  H04B10/2587 ,  H04B10/272 ,  H04B10/516

Abstract: Provided is a reflective colorless optical transmitter receiving a carrier signal, which is a continuous wave, and outputting a modulated optical signal. The reflective colorless optical transmitter includes a semiconductor optical amplifier (SOA) amplifying an input optical signal allowing the input optical signal to have a gain, an optical modulator connected to the SOA and outputting a modulated optical signal, a high reflectivity facet reflecting the modulated optical signal from the optical modulator, and a Bragg reflection mirror connected to the high reflectivity facet, the optical modulator, and the SOA in series, wherein a Bragg resonator is formed by the Bragg reflecting mirror and the high reflectivity facet.

Abstract translation: 提供了一种反射无色光发射机，其接收作为连续波的载波信号，并输出调制的光信号。 反射无色光发射机包括放大输入光信号以允许输入光信号具有增益的半导体光放大器（SOA），连接到SOA并输出调制光信号的光调制器，反映调制光的高反射面 来自光调制器的信号，以及连接到高反射面的布拉格反射镜，光调制器和SOA串联，其中由布拉格反射镜和高反射面形成布拉格谐振器。

公开(公告)号：US20140233945A1

公开(公告)日：2014-08-21

申请号：US14185351

申请日：2014-02-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jong Sool JEONG ,  Hyun Soo KIM ,  Mi-Ran PARK ,  Byung-Seok CHOI ,  O-Kyun KWON

IPC: H04J14/02 ,  H04B10/079

CPC classification number: H04J14/0221 ,  H04B10/506 ,  H04B10/564

Abstract: Provided is a wavelength division multiplexing (WDM) optical transmitting apparatus including first to n-th optical transmitters configured to output first to n-th optical signals having different wavelengths, respectively; a wavelength multiplexer configured to multiplex the first to n-th optical signals and generate an output optical signal; a tap coupler configured to receive the output optical signal and generate a controlling optical signal based on some of the output optical signal; a controlling photodetector configured to receive the controlling optical signal and output an optical current based on the controlling optical signal; and a controller configured to control each of the first to n-th optical transmitters based on the optical current, wherein the controller comprises a look-up table, sequentially detects driving conditions for the first to n-th optical transmitters, stores the detected driving conditions in the look-up table, and controls the first to n-th optical transmitters based on the detected driving conditions.

Abstract translation: 提供了一种波分复用（WDM）光发送装置，其包括分别输出具有不同波长的第一至第n光信号的第一至第n光发送器; 波长多路复用器，被配置为复用第一至第n光信号并产生输出光信号; 抽头耦合器，被配置为接收所述输出光信号并且基于所述输出光信号中的一些产生控制光信号; 控制光电检测器，被配置为基于所述控制光信号接收所述控制光信号并输出​​光电流; 以及控制器，其被配置为基于所述光电流来控制所述第一至第n光发送器中的每一个，其中所述控制器包括查找表，顺序地检测所述第一至第n光发送器的驱动条件，存储检测到的驱动 查找表中的条件，并且基于检测到的驾驶条件来控制第一至第n光发射机。

公开(公告)号：US20220140170A1

公开(公告)日：2022-05-05

申请号：US17513805

申请日：2021-10-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kiwon MOON ,  Kyung Hyun PARK ,  Dong Woo PARK ,  Jun-Hwan SHIN ,  Eui Su LEE ,  Hyun Soo KIM ,  IL MIN LEE

IPC: H01L31/102 ,  G02F2/02 ,  H01L31/0304 ,  H03B7/08 ,  H01L29/88

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.

公开(公告)号：US20180039033A1

公开(公告)日：2018-02-08

申请号：US15786197

申请日：2017-10-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Mi Ran PARK ,  O Kyun KWON ,  Hyun Soo KIM ,  Jong Sool JEONG

IPC: G02B6/42

CPC classification number: G02B6/4214 ,  G02B6/4221 ,  G02B6/4249 ,  G02B6/4257

Abstract: Provided herein is a multi-channel optical module that transmits or receives an optical signal of multi-channels and a manufacturing method thereof, the multi-channel optical module including a multi-channel optical fiber block configured to transmit an optical signal, a submount including an array optical receiving element unit configured to receive the optical signal; and a mirror unit arranged on a metal optical bench and configured to induce the optical signal transmitted from the multi-channel optical fiber block to the array optical receiving element unit, wherein for the inducement of the optical signal to the array optical receiving element unit, the mirror unit is passively aligned with the array optical receiving element unit, and the multi-channel optical fiber block is actively aligned with the mirror unit.

公开(公告)号：US20130163993A1

公开(公告)日：2013-06-27

申请号：US13727222

申请日：2012-12-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Byungseok Choi ,  Su Hwan Oh ,  Ki-Hong Yoon ,  Kisoo Kim ,  Hyun Soo KIM ,  O-Kyun Kwon ,  Young-Tak Han

IPC: H04B10/572

CPC classification number: H04B10/572 ,  H01S5/02272 ,  H01S5/0612 ,  H01S5/101 ,  H01S5/141 ,  H01S5/227

Abstract: Disclosed is a directly-coupled wavelength-tunable external cavity laser including a gain medium that generates an optical signal by an applied bias current; an optical waveguide structure that is coupled to the gain medium to form a minor surface and causes lasing in the mirror surface when the applied bias current has a threshold or higher; and a radio frequency transmission medium that adds a radio frequency signal to the applied bias current to adjust an operating speed of the optical signal.

Abstract translation: 公开了一种直接耦合的波长可调谐外腔激光器，其包括通过施加的偏置电流产生光信号的增益介质; 光波导结构，其耦合到所述增益介质以形成次表面，并且当所施加的偏置电流具有阈值或更高时，在所述镜表面中引起激光; 以及射频传输介质，其将射频信号与所施加的偏置电流相加以调整光信号的操作速度。

公开(公告)号：US20240053652A1

公开(公告)日：2024-02-15

申请号：US18363466

申请日：2023-08-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Soo KIM ,  Ho Sung KIM ,  Yongsoon BAEK ,  Won Seok HAN

IPC: G02F1/21 ,  G02F1/225

CPC classification number: G02F1/212 ,  G02F1/225 ,  G02F1/2257

Abstract: Disclosed are a Mach-Zehnder interferometric optical modulator and a method for manufacturing the same. The modulator includes first and second lower clad layers stacked on a substrate, a core layer on the first and second lower clad layers, a first upper clad layer on the core layer, a second upper clad layer on the first upper clad layer, and electrodes on the second upper clad layer. The second upper clad layer includes an input waveguide, an output waveguide spaced apart from the input waveguide, branch waveguides branched from the input waveguide and coupled to the output waveguide, and insulating blocks provided on both outer sides of the branch waveguides.

公开(公告)号：US20210172872A1

公开(公告)日：2021-06-10

申请号：US17099907

申请日：2020-11-17

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION ,  ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ha Seung SEONG ,  Ho Jin LEE ,  Il Min LEE ,  Ki Won MOON ,  Eui Su LEE ,  Dong Woo PARK ,  Jeong Woo PARK ,  Kyung Hyun PARK ,  Hyun Soo KIM

IPC: G01N21/3581 ,  G01B11/06

Abstract: A measurement apparatus for measuring a coating amount of a slurry according to the present disclosure includes a light emitter configured to irradiate terahertz wave onto a release paper coated with the slurry, a light receiver configured to receive the terahertz wave, which is irradiated from the light emitter and passes through the release paper coated with the slurry, to obtain a power of the terahertz wave, and a calculating part configured to calculate a thickness of an electrode, formed from the slurry applied to the release paper, based on the power of the terahertz wave received by the light receiver.

公开(公告)号：US20200335639A1

公开(公告)日：2020-10-22

申请号：US16848826

申请日：2020-04-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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 ,  H01L21/306 ,  H01L21/285 ,  H01L29/66

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.

公开(公告)号：US20230073881A1

公开(公告)日：2023-03-09

申请号：US17852173

申请日：2022-06-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Soo KIM ,  Duk Jun Kim ,  Dong-Young Kim ,  Ho Sung Kim ,  Youngsoon Baek ,  Jang Uk Shin ,  Young-Tak Han ,  Won Seok Han

IPC: G02F1/21 ,  G02F1/225

Abstract: Disclosed are a Mach-Zehnder interferometric optical modulator and a method for manufacturing the same. The modulator includes first and second lower clad layers, a core layer, an upper clad layer, a waveguide, and electrodes. The waveguide may include an input waveguide, a waveguide divider, branch waveguides, and a waveguide combiner. Each of the branch waveguides includes first and second connection regions connected to the waveguide combiner and the waveguide divider, respectively, and a phase shift region having a cross-section of a reverse mesa structure that has an upper width that is the same as widths of the first and second connection regions and a lower width that is smaller than the widths of the first and second connection regions.