公开(公告)号：US20240192571A1

公开(公告)日：2024-06-13

申请号：US18309165

申请日：2023-04-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunil BYUN ,  Woosung KIM ,  Kyunghyun SON

IPC: G02F1/29 ,  G01S7/481

CPC classification number: G02F1/292 ,  G01S7/4817

Abstract: An optical phased array device may include a substrate, a light distribution unit configured to distribute input light along a plurality of paths as distributed light, a light modulator configured to modulate a phase of distributed light to establish phase-modulated light, an antenna configured to emit the phase-modulated light, a clad surrounding the light distribution unit, the light modulator, and the antenna and including a first surface facing the substrate and a second surface opposite the first surface, and a reflective layer facing the second surface of the clad. The reflective layer may be configured to reflect the phase-modulated light emitted from the antenna so that reflected light is emitted to an exterior environment that is external to the optical phased array device based on passing through the substrate.

公开(公告)号：US20240069405A1

公开(公告)日：2024-02-29

申请号：US18171525

申请日：2023-02-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Woosung KIM ,  Hyunil BYUN ,  Dongjae SHIN

IPC: G02F1/295 ,  G01S7/481

CPC classification number: G02F1/2955 ,  G01S7/4817

Abstract: An optical phased array device according to at least one embodiment includes a light distribution unit configured to branch a traveling path of light, input through an input terminal, at least twice, and to direct distributed pieces of sub-light to a plurality of output terminals; at least one light modulator configured to form a plurality of channels by modulating phases of the pieces of sub-light; at least one first amplifier in an optical path between the input terminal and the at least one light modulator, the at least one first amplifier configured to amplify at least a piece of sub-light; at least one first complementary amplifier configured to replace the at least one first amplifier; and a switch configured to switch the first complementary amplifier in or out of the optical path between the input and the at least one light modulator.

公开(公告)号：US20210215993A1

公开(公告)日：2021-07-15

申请号：US17218910

申请日：2021-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyunil BYUN ,  Inoh HWANG

IPC: G02F1/295 ,  G02B27/00 ,  G02F1/29 ,  G02F1/313 ,  H01Q3/26 ,  H01Q3/30 ,  H01S5/40

Abstract: Provided is an optical phased array including a light injector, a first splitter connected to the light injector, a first phase shifter connected to the first splitter, a plurality of waveguides connected to the first splitter, portions of the plurality of waveguides being connected to the first splitter via the first phase shifter, an antenna array connected to the plurality of waveguides, a single mode filter provided in each of the plurality of waveguides, and a first photodetector connected to the first splitter and configured to detect a portion of light radiated onto the antenna array.

公开(公告)号：US20210173083A1

公开(公告)日：2021-06-10

申请号：US16886180

申请日：2020-05-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongjae SHIN ,  Hyunil BYUN ,  Changgyun SHIN ,  Bongyong JANG

IPC: G01S17/42 ,  G01S7/4865 ,  G01S17/26 ,  G01S17/931

Abstract: A light detection and ranging (LiDAR) apparatus capable of extracting speed information and distance information of objects in front thereof is provided. The LiDAR apparatus includes: a continuous wave light source configured to generate continuous wave light; a beam steering device configured to emit the continuous wave light to an object for a first time and stop emitting the continuous wave light to the object for a second time; a receiver configured to receive the continuous wave light that is reflected from the object to form a reception signal; and a signal processor configured to obtain distance information and speed information about the object based on the reception signal.