公开(公告)号：US11150494B2

公开(公告)日：2021-10-19

申请号：US16550141

申请日：2019-08-23

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： Guomin Yu ,  Hooman Abediasl ,  Aaron L. Birkbeck ,  Jeffrey Driscoll ,  Haydn Frederick Jones ,  Damiana Lerose ,  Amit Singh Nagra ,  David Arlo Nelson ,  Dong Yoon Oh ,  Pradeep Srinivasan ,  Aaron John Zilkie

IPC: G02F1/01 ,  G02F1/225 ,  G02B6/136 ,  G01J1/04 ,  H01L27/30 ,  H01L21/78 ,  G02B6/13

Abstract: A Mach-Zehnder waveguide modulator. In some embodiments, the Mach-Zehnder waveguide modulator includes a first arm including a first optical waveguide, and a second arm including a second optical waveguide. The first optical waveguide includes a junction, and the Mach-Zehnder waveguide modulator further includes a plurality of electrodes for providing a bias across the junction to enable control of the phase of light travelling through the junction.

公开(公告)号：US11112491B2

公开(公告)日：2021-09-07

申请号：US16022525

申请日：2018-06-28

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： Hooman Abediasl ,  Andrew George Rickman

IPC: G01C3/08 ,  G01S7/481 ,  G02F1/29 ,  G02F1/295 ,  H01Q3/22 ,  G01S7/484 ,  G01S17/36 ,  G02B26/08 ,  G02B26/10

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.

公开(公告)号：US11105975B2

公开(公告)日：2021-08-31

申请号：US16465535

申请日：2017-12-01

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： Hooman Abediasl ,  Damiana LeRose ,  Amit Singh Nagra ,  Guomin Yu

IPC: G02F1/025 ,  G02F1/017 ,  H01L31/0232 ,  G02B6/12 ,  G02F1/015

Abstract: A waveguide optoelectronic device comprising a rib waveguide region, and method of manufacturing a rib waveguide region, the rib waveguide region having: a base of a first material, and a ridge extending from the base, at least a portion of the ridge being formed from a chosen semiconductor material which is different from the material of the base wherein the silicon base includes a first slab region at a first side of the ridge and a second slab region at a second side of the ridge; and wherein: a first doped region extends along: the first slab region and along a first sidewall of the ridge, the first sidewall contacting the first slab region; and a second doped region extends along: the second slab region and along a second sidewall of the ridge, the second sidewall contacting the second slab region.

公开(公告)号：US20210141172A1

公开(公告)日：2021-05-13

申请号：US17092151

申请日：2020-11-06

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： Yi Zhang ,  Chia-Te Chou ,  William Vis ,  Amit Singh Nagra ,  Hooman Abediasl

IPC: G02B6/42 ,  B41F16/00

Abstract: An optoelectronic device. The device comprising: a silicon-on-insulator, SOI, wafer, the SOI wafer including a cavity and an input waveguide, the input waveguide being optically coupled into the cavity; and a mirror, located within the cavity and bonded to a bed thereof, the mirror including a reflector configured to reflect light received from the input waveguide in the SOI wafer.

公开(公告)号：US10969334B2

公开(公告)日：2021-04-06

申请号：US16917550

申请日：2020-06-30

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： Andrew George Rickman ,  Hooman Abediasl

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

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.

公开(公告)号：US10962718B2

公开(公告)日：2021-03-30

申请号：US16867372

申请日：2020-05-05

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： Hooman Abediasl ,  Amit Singh Nagra ,  Andrew George Rickman ,  Thomas Pierre Schrans ,  Pradeep Srinivasan ,  Andrea Trita ,  Aaron John Zilkie

IPC: G02B6/293 ,  G02B6/35 ,  H01S3/23 ,  H01S3/13 ,  G01J3/10 ,  H01S3/00

Abstract: A reconfigurable spectroscopy system comprises tunable lasers and wavelength lockers to lock to accurate reference wavelengths. Band combiners with differently optimized wavelength ranges multiplex the optical signal over the time domain, to emit a plurality of reference wavelengths for spectroscopy applications. The power requirements are greatly reduced by multiplexing over the time domain in time slots which do not affect sampling and receiving of the spectroscopy data.

公开(公告)号：US10928659B2

公开(公告)日：2021-02-23

申请号：US16275157

申请日：2019-02-13

Applicant: ROCKLEY PHOTONICS LIMITED

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

IPC: H04Q11/00 ,  H04B10/29 ,  G02F1/025 ,  H04B10/299 ,  G02F1/015

Abstract: An optoelectronic device and method of making the same. The device comprising: a substrate; an epitaxial crystalline cladding layer, on top of the substrate; and an optically active region, above the epitaxial crystalline cladding layer; wherein the epitaxial crystalline cladding layer has a refractive index which is less than a refractive index of the optically active region, such that the optical power of the optoelectronic device is confined to the optically active region.

公开(公告)号：US20190056558A1

公开(公告)日：2019-02-21

申请号：US15999078

申请日：2018-08-17

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： Andrew George Rickman ,  Hooman Abediasl

IPC: G02B6/43 ,  G02B6/42 ,  H05K13/00 ,  G02B6/12 ,  H01L23/00

Abstract: A photonic chip comprising tunable lasers, emitters and other optical components such as waveguides, wavelength band combiners and wavelength lockers, is packaged with one or more complementary metal-oxide semiconductor chips in different ways. The complementary metal-oxide semiconductor chips are arranged on the sides or the bottom of the photonic chip. Through-Si-vias or wire bonding provides electrical contact between the photonic chip and the complementary metal-oxide semiconductor chips.

公开(公告)号：US20190041667A1

公开(公告)日：2019-02-07

申请号：US16144994

申请日：2018-09-27

Applicant: ROCKLEY PHOTONICS LIMITED

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

IPC: G02F1/01 ,  H01L21/78 ,  H01L27/30 ,  G01J1/04

CPC classification number: G02F1/011 ,  G01J1/0425 ,  G02B6/131 ,  G02B6/136 ,  G02F1/0102 ,  G02F1/225 ,  H01L21/78 ,  H01L27/30

Abstract: An optoelectronic device and method of making the same. The device comprising: a substrate; a regrown cladding layer, on top of the substrate; and an optically active region, above the regrown cladding layer; wherein the regrown cladding layer has a refractive index which is less than a refractive index of the optically active region, such that an optical mode of the optoelectronic device is confined to the optically active region.

公开(公告)号：US20180217469A1

公开(公告)日：2018-08-02

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

CPC classification number: G02F1/2257 ,  G02F2001/212 ,  G02F2201/126 ,  G02F2202/10

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).