Title:
OPTICAL PHASED ARRAY DEVICE FOR LIDAR SENSOR
Document Type and Number:
WIPO Patent Application WO/2023/027333
Kind Code:
A1
Abstract:
The present invention relates to an optical phased array device for a LiDAR sensor, comprising: a light source that irradiates a laser beam of a preset wavelength band; an input waveguide through which the laser beam irradiated from the light source passes; a slab waveguide located at an output terminal of the input waveguide to branch an optical signal inputted from the input waveguide; and a channel waveguide that disperses and guides the optical signal branched from the slab waveguide into an M number of channels, and allows the optical signal to be radiated to a free space, wherein the channel waveguide arranges silica optical waveguides for each of the M number of channels, wherein the length of each optical waveguide has a length difference of ΔL from that of an adjacent optical waveguide.
Inventors:
LEE YONG TAE (KR)
BAEK MID EUM (KR)
LEE CHANG SU (KR)
PARK HYO-HOON (KR)
YOON HYEONHO (KR)
KIM JAE-YONG (KR)
BAEK MID EUM (KR)
LEE CHANG SU (KR)
PARK HYO-HOON (KR)
YOON HYEONHO (KR)
KIM JAE-YONG (KR)
Application Number:
PCT/KR2022/009966
Publication Date:
March 02, 2023
Filing Date:
July 08, 2022
Export Citation:
Assignee:
WAY OPTICS CO LTD (KR)
KOREA ADVANCED INST SCI & TECH (KR)
KOREA ADVANCED INST SCI & TECH (KR)
International Classes:
G02B6/12; G01S7/481; G01S7/484; G01S7/4865; G02B6/122
Foreign References:
| KR20200084863A | 2020-07-13 | |||
| KR19990031848A | 1999-05-06 | |||
| KR20180070325A | 2018-06-26 | |||
| CN110109083A | 2019-08-09 | |||
| US20190265574A1 | 2019-08-29 | |||
| KR102337648B1 | 2021-12-09 |
Attorney, Agent or Firm:
NURY PATENT LAW FIRM (KR)
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