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    OPTICAL PHASED ARRAY (OPA)
    1.
    发明申请
    OPTICAL PHASED ARRAY (OPA) 审中-公开

    公开(公告)号：US20180052378A1

    公开(公告)日：2018-02-22

    申请号：US15462147

    申请日：2017-03-17

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Dong-jae SHIN ,  Hyun-il Byun ,  Kyoung-ho Ha ,  Seong-gu Kim ,  Jin-kwon Bok ,  Jung-ho Cha ,  Dong-hyun Kim ,  Yong-sang Park ,  Min-kyung Kim

    IPC: G02F1/29 ,  G01S7/481 ,  G01S17/93 ,  G01S17/89

    Abstract: An optical phased array (OPA) may be included in a light detection and ranging (LiDAR) system and may be configured to perform beam steering. The OPA may include a cascading structure of splitters configured to enable a branch operation to be performed M times. Each splitter may split an input optical signal in a ratio of 1:1 and output the split input optical signal. The OPA may include a plurality of sets of first phase shifters (PSs), each set of first PSs located exclusively on one output end of a separate splitter, each set of first PSs including a particular quantity of first PSs based on a branch position at which the separate splitter is located. The OPA may be included in a LiDAR system that is further included in a vehicle that is configured to enable navigation of the vehicle, including autonomous navigation, through an environment.

    OPTICAL TRANSMITTERS INCLUDING PHOTONIC INTEGRATED CIRCUIT
    2.
    发明申请
    OPTICAL TRANSMITTERS INCLUDING PHOTONIC INTEGRATED CIRCUIT 审中-公开

    公开(公告)号：US20170366272A1

    公开(公告)日：2017-12-21

    申请号：US15427392

    申请日：2017-02-08

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Dong-jae SHIN ,  Kyoung-ho HA ,  Seong-gu KIM ,  Jin-kwon BOK ,  Jung-ho CHA ,  Dong-hyun KIM

    IPC: H04B10/572 ,  H04B10/80 ,  G02B6/43 ,  H04J14/02 ,  G02B6/42

    CPC classification number: H04B10/572 ,  G02B6/4286 ,  G02B6/43 ,  H04B10/032 ,  H04B10/801 ,  H04J14/02

    Abstract: An optical transmitter includes photonic integrated circuits configured to respectively output optical transmission signals in different wavelength ranges. A photonic integrated circuit may include emitters configured to emit beams having different wavelengths; drivers configured to respectively provide power to the emitters, and a wavelength division multiplexer configured to transmit the beams emitted by the emitters. A photonic integrated circuit may include a switch device that controls the drivers, and light detectors configured to detect intensities of the beams emitted from the emitters. The switch device may selectively operate at least one driver of the plurality of drivers based on information associated with intensities of the beams. The switch device may selectively operate a driver connected to an emitter, based on a determination that an intensity of a beam emitted by another emitter is less than a threshold intensity value.

    PHOTONIC DEVICE
    4.
    发明申请
    PHOTONIC DEVICE 有权
    光电器件

    公开(公告)号：US20140055838A1

    公开(公告)日：2014-02-27

    申请号：US13924487

    申请日：2013-06-21

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Kwang-hyun LEE ,  Dong-jae SHIN ,  Ho-chul JI

    IPC: H01L31/105 ,  G02F1/015

    CPC classification number: H01L31/105 ,  G02F1/015 ,  G02F1/025 ,  G02F1/2257

    Abstract: A photonic device is provided. The photonic device includes: a semiconductor layer including first and second regions; an insulating layer covering the semiconductor layer; and first and second plugs extending to pass through the insulating layer and electrically connected to the corresponding first and second regions. The first plug is in a rectifying contact with the first region, and the second plug is in an ohmic contact with the second region.

    Abstract translation: 提供了光子器件。 光子器件包括：包括第一和第二区域的半导体层; 覆盖半导体层的绝缘层; 并且第一和第二插塞延伸以穿过绝缘层并电连接到相应的第一和第二区域。 第一插头与第一区域整流接触，第二插头与第二区域欧姆接触。

    BEAM STEERING OPTICAL PHASED ARRAYS
    6.
    发明申请
    BEAM STEERING OPTICAL PHASED ARRAYS 审中-公开

    公开(公告)号：US20180175501A1

    公开(公告)日：2018-06-21

    申请号：US15609291

    申请日：2017-05-31

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Hyun-il BYUN ,  Dong-jae SHIN

    IPC: H01Q3/26 ,  G02F1/29 ,  G02B6/28

    CPC classification number: H01Q3/2676 ,  G02B6/2813 ,  G02F1/292

    Abstract: A beam steering optical phased array (OPA) may include an optical signal distributor including a plurality of output terminals configured to divide and output input optical signals and phase shifters arranged at the plurality of output terminals and configured to receive the divided optical signals and shift phases thereof to generate phase-shifted optical signals. The beam steering OPA may include antennas configured to receive the phase-shifted optical signals and an optical signal interferometer. The optical signal interferometer may include first input waveguide regions connected to a limited selection of the antennas and extending in a first direction, a multi-mode waveguide region connected to the first input waveguide regions, and a first output waveguide region connected to the multi-mode waveguide region and extending in the first direction. The beam OPA may enable errors due to process dispersion to be effectively corrected, and thus, the beam steering OPA may have enhanced reliability.

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