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    Optical isolator and photonic integrated circuit including the same
    41.
    发明授权
    Optical isolator and photonic integrated circuit including the same 有权

    公开(公告)号：US12153254B2

    公开(公告)日：2024-11-26

    申请号：US18114772

    申请日：2023-02-27

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Dongjae Shin ,  Hyunil Byun ,  Jinmyoung Kim ,  Changgyun Shin ,  Changbum Lee

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

    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.

    Optical isolator and photonic integrated circuit including the same
    46.
    发明授权
    Optical isolator and photonic integrated circuit including the same 有权

    公开(公告)号：US11630262B2

    公开(公告)日：2023-04-18

    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 ,  G01S7/481 ,  G01S17/88

    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.

    Optical modulating device and apparatus including the same
    47.
    发明授权
    Optical modulating device and apparatus including the same 有权

    公开(公告)号：US11611397B1

    公开(公告)日：2023-03-21

    申请号：US17699553

    申请日：2022-03-21

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Hyunil Byun ,  Dongjae Shin ,  Changgyun Shin ,  Inoh Hwang

    IPC: H04B10/548 ,  H04B10/50

    Abstract: Provided is an optical modulating device including a substrate including first and second trenches, a phase modulator in a region of the substrate, the phase modulator including an undoped region provided between the first and the second trenches, and first and a second doped regions which are apart from each other with the undoped region therebetween, wherein the phase modulator is configured to modulate a phase of light traveling through the undoped region based on a first electrical signal applied to the phase modulator, an amplifier including a first doped layer, a quantum well layer, a clad layer, and a second doped layer sequentially on the substrate, the amplifier overlapping at least a portion of the phase modulator and being configured to amplify the light based on a second electrical signal applied to the amplifier, and an insulating layer between the phase modulator and the amplifier.

    LiDAR APPARATUS COMPRISING PLURALITY OF SWITCHES
    49.
    发明申请
    LiDAR APPARATUS COMPRISING PLURALITY OF SWITCHES 有权

    公开(公告)号：US20220334255A1

    公开(公告)日：2022-10-20

    申请号：US17478391

    申请日：2021-09-17

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Dongjae SHIN ,  Hyunil Byun ,  Changgyun Shin ,  Changbum Lee ,  Inoh Hwang

    IPC: G01S17/58 ,  G01S17/06 ,  G01S7/481 ,  G01S7/497 ,  G01S17/931 ,  G02F1/31 ,  G02F1/29 ,  G02B27/30

    Abstract: Provided is a light detection and ranging (LiDAR) apparatus including a plurality of switches connected in a binary tree structure, a light source and a photodetector respectively connected to a root switch provided on a root node of the binary tree structure, and a light transmission/reception optical system connected to a plurality of terminal switches provided at a plurality of terminal nodes of the binary tree structure, the light transmission/reception optical system being configured to transmit light to an outside of the LiDAR apparatus or receive light from the outside, wherein the root switch is a 2×2 switch including a first upstream side port, a second upstream side port, a first downstream side port, and a second downstream side port, and wherein the light source is connected to the first upstream side port and the photodetector is connected to the second upstream side port.

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