公开(公告)号：US20220334316A1

公开(公告)日：2022-10-20

申请号：US17400332

申请日：2021-08-12

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Kyoungsik YU ,  Gyeongho SON ,  Youngjae JEONG

IPC: G02B6/30

Abstract: An interface for optical communication, including an input waveguide in which light input from an outside is guided, an output waveguide including a first part abutting against one end of the input waveguide and a second part connected to the first part and a substrate including a Buried oxide (BOX) layer connected to a lower side of the output waveguide, wherein the one end of the input waveguide includes a tapered structure of which a cross-sectional area is reduced by a predetermined angle.

公开(公告)号：US20210018684A1

公开(公告)日：2021-01-21

申请号：US16984808

申请日：2020-08-04

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Kyoungsik YU ,  Youngho JUNG

IPC: G02B6/132 ,  H01L21/50

Abstract: The method for manufacturing the heterojunction circuit according to one embodiment of the present disclosure comprises depositing a first electrode on at least a part of a waveguide, moving a semiconductor comprising a second electrode at a lower end thereof onto the first electrode, and depositing a third electrode on an upper end of the semiconductor, wherein the waveguide and the semiconductor comprise different materials. Additionally, the moving step further comprises generating microbubbles by supplying heat to at least a part of the semiconductor, moving the semiconductor on the first electrode by moving the generated microbubbles, and removing the microbubbles by positioning the semiconductor on the first electrode.

公开(公告)号：US20250067971A1

公开(公告)日：2025-02-27

申请号：US18798191

申请日：2024-08-08

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kyoungsik YU

IPC: G02B26/06 ,  G02B6/26

Abstract: A tunable optical cavity and an optoelectronic system employing the same are disclosed. The tunable optical cavity includes a waveguide provided to include first and second optical coupler loops, and a cavity waveguide therebetween, a tunable phase shifter that shifts a phase of light proceeding the cavity waveguide, and a controller. The tunable phase shifter includes a perturbation waveguide arranged in parallel with a straight waveguide portion of the cavity waveguide and a first actuator that moves one of the cavity waveguide and the perturbation waveguide in a first moving direction as a first movable waveguide. The controller controls a driving signal applied to the first actuator to adjust an effective cavity length between the first and second optical coupler loops. Each of the first and second optical coupler loops includes a first waveguide portion and a second waveguide portion arranged in parallel with each other to occur an optical coupling therebetween.

公开(公告)号：US20190302365A1

公开(公告)日：2019-10-03

申请号：US16366534

申请日：2019-03-27

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Kyoungsik YU ,  Youngho JUNG

IPC: G02B6/132 ,  G02B6/12 ,  G02B6/122

Abstract: The method for manufacturing the heterojunction circuit according to one embodiment of the present disclosure comprises depositing a first electrode on at least a part of a waveguide, moving a semiconductor comprising a second electrode at a lower end thereof onto the first electrode, and depositing a third electrode on an upper end of the semiconductor, wherein the waveguide and the semiconductor comprise different materials. Additionally, the moving step further comprises generating microbubbles by supplying heat to at least a part of the semiconductor, moving the semiconductor on the first electrode by moving the generated microbubbles, and removing the microbubbles by positioning the semiconductor on the first electrode.

公开(公告)号：US20140014855A1

公开(公告)日：2014-01-16

申请号：US13716065

申请日：2012-12-14

Applicant: KAIST (KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY)

Inventor： Kyoungsik YU ,  Byounghun PARK ,  Kyungmook KWON

IPC: G01N21/64

CPC classification number: G01N21/64 ,  G01N21/645 ,  G01N2201/0221

Abstract: A condensing-type portable fluorescence detection system which detects antigens using fluorescence includes: a light source generating light to excite a fluorescent substance; a first filter selecting a proper wavelength range from the light generated from the light source; a spherical mirror including two hemispherical mirrors having different curvature radiuses and connected to each other, and condensing the light excited and emitted from the light source; a second filter selecting a proper wavelength range of the light condensed by the spherical mirror; and a photodetector detecting fluorescence from the light condensed by the spherical mirror and passing through the second filter.

Abstract translation: 使用荧光检测抗原的冷凝式便携式荧光检测系统包括：产生用于激发荧光物质的光的光源; 从光源产生的光中选择合适的波长范围的第一滤光器; 球面镜包括具有不同曲率半径的两个半球形反射镜并彼此连接，并且会聚从光源激发和发射的光; 选择由球面镜聚光的适当的波长范围的第二滤光器; 以及光检测器，其从由球面镜聚光并通过第二过滤器的光检测荧光。