公开(公告)号：US11994630B2

公开(公告)日：2024-05-28

申请号：US17827679

申请日：2022-05-28

Applicant: Aurora Operations, Inc.

Inventor： Andrew Steil Michaels ,  Sen Lin

IPC: G01S7/497 ,  B60W60/00 ,  G01S7/481 ,  G01S7/4915 ,  G01S7/493 ,  G01S17/06 ,  G01S17/32 ,  G01S17/58 ,  G01S17/931 ,  H01S3/00 ,  G01B9/02003 ,  G01S7/4911

CPC classification number: G01S7/497 ,  B60W60/001 ,  G01S7/4814 ,  G01S7/4915 ,  G01S7/493 ,  G01S17/06 ,  G01S17/32 ,  G01S17/58 ,  G01S17/931 ,  H01S3/0057 ,  G01B9/02003 ,  G01S7/4911 ,  H01S3/0085

Abstract: A light detection and ranging (LIDAR) system includes a laser and a calibration unit. The laser is configured to generate a laser beam based on a particular laser waveform that is associated with at least one parameter of a plurality of parameters. The calibration unit is configured to determine a particular value for the at least one parameter of the plurality of parameters to compensate for distortion characteristics of the laser. The calibration unit is configured to determine the particular value based on an output frequency of the laser beam. The calibration unit is configured to update the particular laser waveform with the particular value of the at least one parameter of the plurality of parameters.

公开(公告)号：US11965992B2

公开(公告)日：2024-04-23

申请号：US17827679

申请日：2022-05-28

Applicant: Aurora Operations, Inc.

Inventor： Andrew Steil Michaels ,  Sen Lin

IPC: G01S7/497 ,  B60W60/00 ,  G01S7/481 ,  G01S7/4915 ,  G01S7/493 ,  G01S17/06 ,  G01S17/32 ,  G01S17/58 ,  G01S17/931 ,  H01S3/00 ,  G01B9/02003 ,  G01S7/4911

CPC classification number: G01S7/497 ,  B60W60/001 ,  G01S7/4814 ,  G01S7/4915 ,  G01S7/493 ,  G01S17/06 ,  G01S17/32 ,  G01S17/58 ,  G01S17/931 ,  H01S3/0057 ,  G01B9/02003 ,  G01S7/4911 ,  H01S3/0085

Abstract: A light detection and ranging (LIDAR) system includes a laser and a calibration unit. The laser is configured to generate a laser beam based on a particular laser waveform that is associated with at least one parameter of a plurality of parameters. The calibration unit is configured to determine a particular value for the at least one parameter of the plurality of parameters to compensate for distortion characteristics of the laser. The calibration unit is configured to determine the particular value based on an output frequency of the laser beam. The calibration unit is configured to update the particular laser waveform with the particular value of the at least one parameter of the plurality of parameters.

公开(公告)号：US11953628B2

公开(公告)日：2024-04-09

申请号：US17943969

申请日：2022-09-13

Applicant: Aurora Operations, Inc.

Inventor： James Ferrara ,  Sen Lin

IPC: G01S7/481 ,  G01S7/4911 ,  G01S17/931 ,  G02B6/42 ,  G02F1/01

CPC classification number: G01S7/4818 ,  G01S7/4911 ,  G01S17/931 ,  G02B6/4269 ,  G02B6/4272 ,  G02B6/4273 ,  G02F1/0147

Abstract: A phase shifter includes a substrate layer, a cladding layer, and a waveguide. The phase shifter includes a waveguide and a heating element. The phase shifter includes a thermally conductive structure disposed on the cladding layer to disperse heat from the waveguide. The thermally conductive structure may include a metal strip disposed longitudinally along the beam, may include thermally conductive pads, and/or may include thermally conductive vias coupled between the cladding layer and the substrate layer. The phase shifter may be incorporated into light detection and ranging (LIDAR) devices, telecommunications devices, and/or computing devices.

公开(公告)号：US11906667B2

公开(公告)日：2024-02-20

申请号：US17890243

申请日：2022-08-17

Applicant: Aurora Operations, Inc.

Inventor： Sen Lin ,  Andrew Steil Michaels

IPC: G01S7/481 ,  G01S17/931 ,  G01S17/34 ,  G02B6/02

CPC classification number: G01S7/4818 ,  G01S17/34 ,  G01S17/931 ,  G02B6/021

Abstract: A LIDAR device for a vehicle includes an integrated chip. The integrated chip includes a substrate layer, a cladding layer, a waveguide, a scattering array, and a reflector layer. The cladding layer is disposed on the substrate layer to form an interface with the substrate layer. The waveguide is disposed within the cladding layer and configured to route an infrared optical field. The scattering array is disposed within the cladding layer between the waveguide and the interface and perturbs the infrared optical field and scatters the infrared optical field into a first beam propagating toward a surface of the cladding layer and into a second beam propagating towards the interface. The reflector layer is disposed within the cladding layer between the waveguide and the surface of the cladding layer to reflect the first beam towards the interface.

公开(公告)号：US11906661B2

公开(公告)日：2024-02-20

申请号：US17853674

申请日：2022-06-29

Applicant: Aurora Operations, Inc.

Inventor： Sen Lin ,  Andrew Steil Michaels

IPC: G01S7/48 ,  G01S7/481 ,  G01S17/931

CPC classification number: G01S7/4813 ,  G01S17/931

Abstract: A structure of a silicon photonics device for LIDAR includes a first insulating structure and a second insulating structure disposed above one or more etched silicon structures overlying a substrate member. A metal layer is disposed above the first insulating structure without a prior deposition of a diffusion barrier and adhesion layer. A thin insulating structure is disposed above the second insulating structure. A first configuration of the metal layer, the first insulating structure and the one or more etched silicon structures forms a free-space coupler. A second configuration of the thin insulating structure above the second insulating structure forms an edge coupler.

公开(公告)号：US11513289B1

公开(公告)日：2022-11-29

申请号：US17535024

申请日：2021-11-24

Applicant: Aurora Operations, Inc.

Inventor： Sen Lin ,  Andrew Steil Michaels

IPC: G02B6/12 ,  G02B6/136 ,  G01S7/481

Abstract: A structure of a silicon photonics device for LIDAR includes a first insulating structure and a second insulating structure disposed above one or more etched silicon structures overlying a substrate member. A metal layer is disposed above the first insulating structure without a prior deposition of a diffusion barrier and adhesion layer. A thin insulating structure is disposed above the second insulating structure. A first configuration of the metal layer, the first insulating structure and the one or more etched silicon structures forms a free-space coupler. A second configuration of the thin insulating structure above the second insulating structure forms an edge coupler.

公开(公告)号：US12210121B1

公开(公告)日：2025-01-28

申请号：US18641011

申请日：2024-04-19

Applicant: Aurora Operations, Inc.

Inventor： Sen Lin ,  Lei Wang

IPC: G01C3/08 ,  G01S7/481 ,  G01S17/931

Abstract: A light detection and ranging (LIDAR) system for a vehicle can include: a light source configured to output a transmit beam at a first orientation; a reflective surface configured to redirect the transmit beam from the first orientation to a second orientation; and a lens interface configured to receive the transmit beam at the first orientation and focus the transmit beam onto the reflective surface; wherein the LIDAR system emits the transmit beam at the second orientation into an environment of the LIDAR system.

公开(公告)号：US20240410989A1

公开(公告)日：2024-12-12

申请号：US18411106

申请日：2024-01-12

Applicant: Aurora Operations, Inc.

Inventor： Sen Lin ,  Andrew Steil Michaels

IPC: G01S7/481 ,  G01S17/34 ,  G01S17/931 ,  G02B6/02

Abstract: A LIDAR device for a vehicle includes an integrated chip. The integrated chip includes a substrate layer, a cladding layer, a waveguide, a scattering array, and a reflector layer. The cladding layer is disposed on the substrate layer to form an interface with the substrate layer. The waveguide is disposed within the cladding layer and configured to route an infrared optical field. The scattering array is disposed within the cladding layer between the waveguide and the interface and perturbs the infrared optical field and scatters the infrared optical field into a first beam propagating toward a surface of the cladding layer and into a second beam propagating towards the interface. The reflector layer is disposed within the cladding layer between the waveguide and the surface of the cladding layer to reflect the first beam towards the interface.

公开(公告)号：US20240393466A1

公开(公告)日：2024-11-28

申请号：US18191621

申请日：2023-03-28

Applicant: Aurora Operations, Inc.

Inventor： James Ferrara ,  Amir Hosseini ,  Sen Lin ,  Zhizhong Tang

IPC: G01S17/931 ,  B60W60/00 ,  G01S7/481

Abstract: A LIDAR system includes a substrate and an emitter coupled to the substrate and configured to emit a light beam along a first axis of the substrate. The LIDAR system includes an optic device coupled to the substrate and configured to split the light beam into a plurality of light beams. The LIDAR system includes an optical amplifier array coupled to the substrate and configured to amplify the plurality of light beams received from the optic device to generate a plurality of amplified light beams. The LIDAR system includes a transceiver coupled to the substrate and configured to redirect the plurality of amplified light beams from traveling along the first axis of the substrate to traveling along a second axis of the substrate that is different from the first axis.

公开(公告)号：US20240111032A1

公开(公告)日：2024-04-04

申请号：US18538718

申请日：2023-12-13

Applicant: Aurora Operations, Inc.

Inventor： Amir Hosseini ,  Sen Lin ,  Andrew Steil Michaels

IPC: G01S7/481 ,  G01S7/491 ,  G01S17/931

CPC classification number: G01S7/4818 ,  G01S7/4811 ,  G01S7/491 ,  G01S17/931

Abstract: A LIDAR transceiver includes a source input, coherent cells, and an optical switch. The optical switch is configured to switchably couple the source input to the coherent cells. At least one of the coherent cells includes an input port, an optical antenna, and a splitter. The input port is coupled to the optical switch and the splitter is coupled between the input port and the optical antenna. The splitter is configured to split a received portion of a laser signal into a local oscillator signal and a transmit signal, where the transmit signal is emitted through the optical antenna. A reflection of the transmit signal is received through the optical antenna as a reflected signal, where the splitter is further configured to output a return signal that is a portion of the reflected signal.