公开(公告)号：US20220229234A1

公开(公告)日：2022-07-21

申请号：US17357503

申请日：2021-06-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongjae SHIN ,  Hyunil BYUN ,  Jinmyoung KIM ,  Changgyun SHIN ,  Changbum LEE

IPC: G02B6/12 ,  G01S17/88 ,  G01S7/481

Abstract: Provided is an optical isolator including a semiconductor substrate, an optical attenuator and an optical amplifier aligned with each other on the semiconductor substrate, an input optical waveguide connected to the optical attenuator, and an output optical waveguide connected to the optical amplifier, wherein a gain of the optical amplifier decreases based on an intensity of light incident on the optical amplifier increasing, wherein a first input light incident on the optical attenuator through the input optical waveguide is output as a first output light through the output optical waveguide, and a second input light incident on the optical amplifier through the output optical waveguide is output as a second output light through the input optical waveguide, and wherein when an intensity of the first input light and an intensity of the second input light are equal, an intensity of the first output light is greater than an intensity of the second output light.

公开(公告)号：US20220066005A1

公开(公告)日：2022-03-03

申请号：US17158732

申请日：2021-01-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongjae SHIN ,  Hyunil BYUN ,  Jinmyoung KIM ,  Changgyun SHIN

IPC: G01S7/4911 ,  G01S17/32

Abstract: A light detection and ranging (LiDAR) device includes a transmitter configured to transmit a continuous wave light to an object and provide a local oscillator (LO) light corresponding to the transmitted continuous wave light; a delay circuit configured to time delay the LO light; a receiver configured to receive the continuous wave light reflected from an object; and a detection circuit configured to determine a distance from the LiDAR device to the object based on the time delayed LO light and the received continuous wave light.

公开(公告)号：US20210364695A1

公开(公告)日：2021-11-25

申请号：US17023631

申请日：2020-09-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongjae SHIN ,  Dongsik SHIM ,  Eunkyung LEE ,  Changbum LEE ,  Bongyong JANG

IPC: G02B6/12 ,  G02B6/136 ,  G02B6/125

Abstract: A photonic integrated circuit platform includes a substrate, a first oxide layer disposed on the substrate and including an insulating transparent oxide, and a first optical element layer disposed on the first oxide layer and including a semiconductor material. The photonic integrated circuit platform further includes a second optical element layer disposed on the first optical element layer and including an insulating material different from the insulating transparent oxide of the first oxide layer, the second optical element layer further including a compound semiconductor material different from the semiconductor material of the first optical element layer, a second oxide layer disposed on the second optical element layer and including an insulating transparent oxide, and a plurality of optical elements formed by patterning the first optical element layer or the second optical element layer.

公开(公告)号：US20210270943A1

公开(公告)日：2021-09-02

申请号：US17313578

申请日：2021-05-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Inoh HWANG ,  Dongjae SHIN ,  Jungwoo KIM ,  Tatsuhiro OTSUKA ,  Heesun YOON

IPC: G01S7/487 ,  G01S17/06 ,  G01S7/481 ,  G01S17/42

Abstract: Light detection and ranging (LiDAR) systems and methods of operating the LiDAR systems are provided. The LiDAR system includes a light emitter configured to emit first lights of different wavelengths in a vertical direction and at different scanning angles with respect to a horizontal axis, a lens configured to converge second lights that are reflected from objects on which the first lights are emitted, and a light filter comprising an active-type device configured to adjust a transmission central wavelength of the active-type device to the different wavelengths of the first lights that are emitted from the light emitter. The LiDAR system further includes a controller configured to control an operation of the light emitter and the light filter, and a detector configured to detect light from the light emitter, and obtain information about the objects.