中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

41 records (took 0.016 seconds)

    Schottky photodetector
    1.
    发明授权
    Schottky photodetector 有权

    公开(公告)号：US11342475B2

    公开(公告)日：2022-05-24

    申请号：US16641142

    申请日：2018-08-20

    Applicant: ROCKLEY PHOTONICS LIMITED

    Inventor： Guomin Yu ,  Hooman Abediasl ,  Aaron John Zilkie

    IPC: H01L31/108 ,  H01L31/0224 ,  H01L31/0232 ,  H01L31/18

    Abstract: An optoelectronic device, and a method of fabricating an optoelectronic device. The device comprising: a rib waveguide formed of doped silicon, said doped waveguide having a ridge portion, containing an uppermost surface and two sidewall surfaces; and a slab portion, adjacent to the two sidewall surfaces. The device further comprises: a metal contact layer, which directly abuts the uppermost surface and two sidewall surfaces, and which extends along a part of the slab portion so as to provide a Schottky barrier between the metal contact layer and the rib waveguide.

    Waveguide modulator structures
    4.
    发明授权
    Waveguide modulator structures 有权

    公开(公告)号：US10216059B2

    公开(公告)日：2019-02-26

    申请号：US15927943

    申请日：2018-03-21

    Applicant: ROCKLEY PHOTONICS LIMITED

    Inventor： Guomin Yu ,  Aaron John Zilkie ,  Hooman Abediasl ,  Damiana Lerose ,  Amit Singh Nagra ,  Pradeep Srinivasan ,  Haydn Frederick Jones

    IPC: G02F1/225 ,  G02F1/21

    Abstract: An optoelectronic device and method of making the same. In some embodiments, the optoelectronic device includes a substrate, a Mach-Zehnder waveguide modulator, and an epitaxial crystalline cladding layer. The Mach-Zehnder waveguide modulator includes a left arm including a left SiGe optical waveguide, and a right arm including a right SiGe optical waveguide, each of the left and right optical waveguides including a junction region and a plurality of electrodes for providing a bias across the junction to enable control of the phase of light travelling through the junction regions via dispersion. The epitaxial crystalline cladding layer is on top of the substrate and beneath the junction region of the left optical waveguide and/or the junction region of the right optical waveguide, and has a refractive index which is less than a refractive index of the respective junction region(s), such that optical power is confined to the respective junction region(s).

    Spectroscopy system with beat component
    8.
    发明授权
    Spectroscopy system with beat component 有权

    公开(公告)号：US10739256B1

    公开(公告)日：2020-08-11

    申请号：US16370861

    申请日：2019-03-29

    Applicant: ROCKLEY PHOTONICS LIMITED

    Inventor： Andrew George Rickman ,  Hooman Abediasl

    IPC: G01N21/35 ,  G01N21/3581 ,  G01S17/89 ,  G01S17/42

    Abstract: A light ranging and detection system achieving reconfigurable very wide field of view, high sampling of spatial points per second with high optical power handling by using architecture to efficiently combine different wavelengths, time and frequency coding, and spatial selectivity. The transmitter is capable of generating multiple narrow beams, encoding different beams and transmitting in different spatial directions. The receiver can differentiate and extract range and reflectivity information of reflected beams. Three dimensional imaging of the environment is achieved by scanning the field of view of the transmitter. Control and signal processing electronic circuitries fabricated in a chip are packaged together with a chip containing the photonic components of the ranging system. The light ranging and detection system generates a THz beam in addition to an optical beam, and both beams combined allow reconfigurable spectroscopy.

    OPTICAL PHASED ARRAY FOURIER TRANSFORM PROCESSOR
    9.
    发明申请
    OPTICAL PHASED ARRAY FOURIER TRANSFORM PROCESSOR 审中-公开

    公开(公告)号：US20200209480A1

    公开(公告)日：2020-07-02

    申请号：US16727847

    申请日：2019-12-26

    Applicant: ROCKLEY PHOTONICS LIMITED

    Inventor： Andrew George Rickman ,  Hooman Abediasl

    IPC: G02B6/293

    Abstract: An optical processor. In some embodiments, the optical processor includes a free propagation region; a plurality of input waveguides, coupled to an input aperture of the free propagation region; a plurality of output waveguides, coupled to an output aperture of the free propagation region; a first modulator, on one of the input waveguides; and an optical detector, on one of the output waveguides.

    OPTICAL MODULATORS
    10.
    发明申请
    OPTICAL MODULATORS 审中-公开

    公开(公告)号：US20190139950A1

    公开(公告)日：2019-05-09

    申请号：US16195774

    申请日：2018-11-19

    Applicant: ROCKLEY PHOTONICS LIMITED

    Inventor： Guomin Yu ,  Amit Singh Nagra ,  Damiana Lerose ,  Hooman Abediasl ,  Pradeep Srinivasan ,  Joyce Kai See Poon ,  Zheng Yong ,  Haydn Frederick Jones

    IPC: H01L25/16 ,  H04B10/524 ,  G02F1/017

    Abstract: An optoelectronic device. The optoelectronic device operable to provide a PAM-N modulated output, the device comprising: M optical modulators, M being an integer greater than 1, the M optical modulators being arranged in a cascade, the device being configured to operate in N distinct transmittance states, as a PAM-N modulator, wherein, in each transmittance state of the N distinct transmittance states, each of the M optical modulators has applied to it a respective control voltage equal to one of: a first voltage or a second voltage. One or more of the modulators may include a substrate; a crystalline cladding layer, on top of the substrate; and an optically active region, above the crystalline cladding layer. The crystalline cladding layer may have a refractive index which is less than a refractive index of the optically active region.

Patent Agency Ranking