公开(公告)号：US20250060649A1

公开(公告)日：2025-02-20

申请号：US18799366

申请日：2024-08-09

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hansuek LEE ,  Min Seok JANG ,  Daewon SUK ,  Soobong PARK ,  Fabian ROTERMUND ,  Changmin LEE ,  Seong Cheol LEE ,  Ji Eun BAE

IPC: G02F1/35 ,  G02F1/365 ,  H01S3/102

Abstract: Provided are an electro-optical device, a laser device, and an electro-optical dual-comb generator. The electro-optical device includes a waveguide configured to generate a dispersive wave of which a center wavelength is different from a center wavelength of the incident wave of the waveguide, and a wavelength modulator disposed along the waveguide and configured to absorb the incident wave propagating through the waveguide, wherein, as the wavelength modulator absorbs the incident wave, the center wavelength of the dispersive wave changes.

公开(公告)号：US20220382117A1

公开(公告)日：2022-12-01

申请号：US17496419

申请日：2021-10-07

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Min Seok JANG ,  Ju Young KIM ,  Juho PARK

IPC: G02F1/21

Abstract: Disclosed are an optical modulation device and a phase modulation method using the same. The optical modulation device includes a reflection plate, an insulating film over the reflection plate, dielectric patterns aligned on the insulating film in a first direction and extended in parallel in a second direction intersecting the first direction, and first and second graphene patterns provided between the dielectric patterns and alternately aligned in the first direction. The dielectric patterns and the first and second graphene patterns fully cover the top of the insulating film. Two dielectric patterns adjacent to each other in the first direction with one of the first graphene patterns interposed therebetween form one dielectric pattern pair. The dielectric pattern pair is provided in plural. The dielectric pattern pairs are isolated from each other in the first direction with one of the second graphene patterns interposed therebetween. A width of each of the first graphene patterns in the first direction is different from a width of each of the second graphene patterns in the first direction.