公开(公告)号：US20240192330A1

公开(公告)日：2024-06-13

申请号：US18216114

申请日：2023-06-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woosung KIM ,  Dongjae SHIN ,  Eunkyung LEE ,  Hyunil BYUN ,  Changbum LEE

IPC: G01S7/481 ,  G01S7/4911 ,  G01S7/4912

CPC classification number: G01S7/4817 ,  G01S7/4911 ,  G01S7/4918

Abstract: A LIDAR apparatus includes a light source module configured to generate light, an optical transmitter configured to transmit the light generated by the light source module to outside, an optical receiver configured to receive light coming from the outside, an optical detector configured to detect the light received by the optical receiver, and a processor configured to control the operation of each of the light source module and the optical transmitter, wherein the light source module includes a first tunable laser light source configured to emit light in a first wavelength band, a second tunable laser light source configured to emit light in a second wavelength band different from the first wavelength band, and a light selection element configured to select and output one of the lights emitted by the first tunable laser light source and the second tunable laser light source.

公开(公告)号：US20240201387A1

公开(公告)日：2024-06-20

申请号：US18224270

申请日：2023-07-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woosung KIM ,  Dongjae Shin

IPC: G01S17/931 ,  H01S5/024 ,  H01S5/10 ,  H01S5/50

CPC classification number: G01S17/931 ,  H01S5/024 ,  H01S5/1003 ,  H01S5/1071 ,  H01S5/5027

Abstract: A tunable laser light source includes a substrate; a waveguide layer disposed on the substrate, and including: a first optical waveguide and a second optical waveguide that are spaced apart from each other in a first direction and that extend in a second direction perpendicular to the first direction; a first optical amplifier provided on the first optical waveguide; a second optical amplifier provided on the second optical waveguide and facing the first optical amplifier at a distance in the first direction; and a thermal isolation structure that is provided between the first optical amplifier and the second optical amplifier in the first direction, wherein, in the thermal isolation structure, the waveguide layer is disconnected in the first direction such that an upper surface of the substrate is exposed outside of the waveguide layer.

公开(公告)号：US20240168131A1

公开(公告)日：2024-05-23

申请号：US18376657

申请日：2023-10-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woosung KIM ,  Hyunil BYUN ,  Dongjae SHIN ,  Changbum LEE ,  Changgyun SHIN ,  Tatsuhiro OTSUKA

IPC: G01S7/481 ,  G01R19/25 ,  G01S17/931

CPC classification number: G01S7/4811 ,  G01R19/25 ,  G01S7/4814 ,  G01S17/931

Abstract: An optical device and a light detection and ranging (LiDAR) device each including a heater combined temperature sensor are disclosed. The optical device including the heater combined temperature sensor may include a heater, an analog-to-digital converter (ADC) configured to measure a voltage of the heater, a memory storing a measurement value, and a micro-controller configured to estimate a temperature of the heater based on relationship between the measurement value and the temperature.

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：US20240192324A1

公开(公告)日：2024-06-13

申请号：US18206310

申请日：2023-06-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woosung KIM ,  Hyunil BYUN

IPC: G01S7/481 ,  G02B5/18

CPC classification number: G01S7/4814 ,  G02B5/1861

Abstract: Provided is a grating structure including a grating layer including a first surface, a second surface opposite to the first surface, and a plurality of grating teeth between the first surface and the second surface, a slab layer on a surface of at least one of the plurality of grating teeth, and a heater on at least one of the first surface, the second surface, and the plurality of grating teeth.

公开(公告)号：US20220128900A1

公开(公告)日：2022-04-28

申请号：US17306644

申请日：2021-05-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Donghwan KIM ,  Woosung KIM ,  Gunwoo PARK ,  Ki-Bong SEO ,  Jang-Hwan JEONG

IPC: G03F1/38 ,  H01L21/027 ,  H01L21/768 ,  G03F7/20

Abstract: Disclosed are a photomask, an exposure apparatus, and a method of fabricating a three-dimensional semiconductor memory device using the same. The photomask may include a mask substrate, a first mask pattern on the mask substrate, and an optical path modulation substrate. The optical path modulation substrate may include a first region on a portion of the first mask pattern, and a second region on another portion of the first mask pattern. The second region has a thickness that is less than a thickness of the first region.