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    Optical transmitters including photonic integrated circuit
    2.
    发明授权
    Optical transmitters including photonic integrated circuit 有权

    公开(公告)号：US10230473B2

    公开(公告)日：2019-03-12

    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: H04B10/50 ,  G02B6/42 ,  H04B10/572 ,  H04B10/80 ,  H04J14/02 ,  H04B10/032 ,  G02B6/43

    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.

    Optical apparatus
    3.
    发明授权
    Optical apparatus 有权

    公开(公告)号：US09766398B2

    公开(公告)日：2017-09-19

    申请号：US15259950

    申请日：2016-09-08

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Duanhua Kong ,  Seong-gu Kim ,  Hyun-il Byun

    IPC: G02B6/12 ,  G02B6/34 ,  G02B6/124 ,  G02B6/122 ,  G02B6/30

    CPC classification number: G02B6/124 ,  G02B6/1228 ,  G02B6/305 ,  G02B6/34 ,  G02B2006/12157

    Abstract: An optical apparatus includes an optical waveguide located on a substrate and including a guiding portion and a taper portion, and a grating pattern located on the substrate. The grating pattern includes a plurality of low refractive index portions and a plurality of high refractive index portions, which are alternately arranged in a first direction parallel to a top surface of the substrate. Each of the plurality of high refractive index portions includes a curved inner sidewall and a curved outer sidewall having curvatures defined by circular paths. The inner sidewall and the outer sidewall of at least one of the plurality of high refractive index portions have a first focus position. The inner sidewall or the outer sidewall of at least one of the plurality of high refractive index portions or a sidewall of the taper portion has a second focus position different from the first focus position.

    Optical Apparatus
    4.
    发明申请
    Optical Apparatus 有权

    公开(公告)号：US20170082800A1

    公开(公告)日：2017-03-23

    申请号：US15259950

    申请日：2016-09-08

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Duanhua Kong ,  Seong-gu Kim ,  Hyun-il Byun

    IPC: G02B6/124 ,  G02B6/30 ,  G02B6/34 ,  G02B6/122

    CPC classification number: G02B6/124 ,  G02B6/1228 ,  G02B6/305 ,  G02B6/34 ,  G02B2006/12157

    Abstract: An optical apparatus includes an optical waveguide located on a substrate and including a guiding portion and a taper portion, and a grating pattern located on the substrate. The grating pattern includes a plurality of low refractive index portions and a plurality of high refractive index portions, which are alternately arranged in a first direction parallel to a top surface of the substrate. Each of the plurality of high refractive index portions includes a curved inner sidewall and a curved outer sidewall having curvatures defined by circular paths. The inner sidewall and the outer sidewall of at least one of the plurality of high refractive index portions have a first focus position. The inner sidewall or the outer sidewall of at least one of the plurality of high refractive index portions or a sidewall of the taper portion has a second focus position different from the first focus position.

    OPTICAL PHASED ARRAY (OPA)
    8.
    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.

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