公开(公告)号：US11668877B2

公开(公告)日：2023-06-06

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

CPC classification number: G02B6/305

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：US11274970B1

公开(公告)日：2022-03-15

申请号：US16686349

申请日：2019-11-18

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jungwon Kim ,  Kyoungsik Yu ,  Youngjae Jeong ,  Chan-Gi Jeon

IPC: G01J9/02 ,  G02B6/293

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.