公开(公告)号：US10591549B2

公开(公告)日：2020-03-17

申请号：US15265101

申请日：2016-09-14

Applicant: GM Global Technology Operations LLC

Inventor： Shuoqin Wang ,  Mark W. Verbrugge ,  Charles W. Wampler, II

IPC: G01R31/382 ,  G01R31/374 ,  G01R31/00 ,  G02B6/02

Abstract: A number of variations may include a product comprising: at least one sensor comprising an optical fiber comprising a first end comprising a semiconductor material, a second end, and a longitudinal midsection comprising a grating, wherein the sensor is constructed and arranged to provide measurements that derive both state of charge and temperature of an electrochemical device simultaneously.

公开(公告)号：US10317473B2

公开(公告)日：2019-06-11

申请号：US15220985

申请日：2016-07-27

Applicant: GM Global Technology Operations LLC

Inventor： Shuoqin Wang ,  Charles W. Wampler ,  Mark W. Verbrugge ,  Luan Vu

IPC: G01R31/36 ,  G01R31/367 ,  G01R31/374 ,  G01R35/00

Abstract: A number of illustrative variations may include a method, which may include obtaining terminal voltage data of a electrochemical device; determining an equivalent circuit model which operates in a manner approximating the terminal voltage data comprising an open circuit voltage VOC comprising a constant voltage source V0 and a voltage Vs across a capacitor Cs, in series with an overpotential circuit comprising an overpotential voltage V1; determining at least one of the power capabilities of the equivalent circuit model; and, estimating at least one of the power capabilities of the electrochemical device based upon the determined power capabilities of the equivalent circuit model.

公开(公告)号：US11644544B2

公开(公告)日：2023-05-09

申请号：US16814726

申请日：2020-03-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Raymond Sarkissian ,  Keyvan Sayyah ,  Shuoqin Wang ,  Biqin Huang ,  Ivan Alvarado

IPC: G01S7/48 ,  G01S7/481 ,  G01S7/4911 ,  G01S7/4912 ,  G01S17/88 ,  G02B6/12 ,  G02B6/122 ,  G01S17/10 ,  G02F1/095 ,  B60R11/00 ,  G02F1/01

CPC classification number: G01S7/4818 ,  G01S7/4813 ,  G01S7/4814 ,  G01S7/4815 ,  G01S7/4816 ,  G01S7/4817 ,  G01S7/4911 ,  G01S7/4916 ,  G01S17/10 ,  G01S17/88 ,  G02B6/12004 ,  G02B6/1228 ,  G02F1/0955 ,  B60R11/00 ,  G02B2006/1215 ,  G02B2006/12061 ,  G02B2006/12097 ,  G02B2006/12121 ,  G02B2006/12147 ,  G02F1/0147

Abstract: An architecture for a chip-scale optical phased array-based scanning frequency-modulated continuous wave (FMCW) Light-detection and ranging (LiDAR) device is described. The LiDAR device includes a laser, a transmit optical splitter, an optical circulator, photodetectors, and an optical phased array. The laser, the transmit optical splitter, the optical circulator, the photodetectors, and the optical phased array are arranged as a chip-scale package on a single semiconductor substrate. The laser generates a first light beam that is transmitted to the optical phased array aperture via the transmit optical splitter, the optical circulator, and the optical phased array. A fraction of the first light beam is transmitted to the photodetectors via the transmit optical splitter to serve as the optical local oscillator (LO), the aperture of the optical phased array captures a second light beam that is transmitted to the photodetectors via the optical phased array and the optical circulator.

公开(公告)号：US20210124048A1

公开(公告)日：2021-04-29

申请号：US16814741

申请日：2020-03-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Keyvan Sayyah ,  Raymond Sarkissian ,  Biqin Huang ,  Shuoqin Wang

IPC: G01S17/10 ,  G01S7/481 ,  G01S17/931

Abstract: An integrated photonic circulator is described, an application of which may be deployed on a chip-scale light-detection and ranging (LiDAR) device. The photonic circulator includes a micro-ring resonator waveguide, a heating element, first and second bus waveguides, a magneto-optic substrate, a magneto-optic element, a magnetic ring disposed on a photonic substrate, and a silicon substrate. The first and second bus waveguides are coupled to the micro-ring resonator waveguide, and the micro-ring resonator waveguide is affixed onto a first side of the photonic substrate. The magneto-optic element and the magneto-optic substrate are arranged on the micro-ring resonator waveguide, the magnetic ring is affixed to the magneto-optic substrate, the heating element is affixed to the photonic substrate, the photonic substrate is affixed to the silicon substrate, and the magnetic ring is concentric with the micro-ring resonator.

公开(公告)号：US20210124024A1

公开(公告)日：2021-04-29

申请号：US16814575

申请日：2020-03-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Raymond Sarkissian ,  Keyvan Sayyah ,  Biqin Huang ,  Ivan Alvarado ,  Shuoqin Wang

IPC: G01S7/481 ,  G01S7/4912 ,  G01S7/4911

Abstract: A photonic circulator deployed on a chip-scale light-detection and ranging (LiDAR) device includes a first arm that includes a first waveguide that is bonded onto a first member at a first bonding region, and a second arm that includes a second waveguide that is bonded onto a second member at a second bonding region. A first thermo-optic phase shifter is arranged on the first member and collocated with the first waveguide, and a second thermo-optic phase shifter is arranged on the second member and collocated with the second waveguide. The magneto-optic material and the first thermo-optic phase shifter of the first member cause a first phase shift in a first light beam travelling through the first waveguide, and the magneto-optic material and the second thermo-optic phase shifter of the second member cause a second phase shift in a second light beam travelling through the second waveguide.

公开(公告)号：US11639988B2

公开(公告)日：2023-05-02

申请号：US16814741

申请日：2020-03-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Keyvan Sayyah ,  Raymond Sarkissian ,  Biqin Huang ,  Shuoqin Wang

IPC: G01S7/481 ,  G01S7/4911 ,  G01S7/4912 ,  G01S17/88 ,  G02B6/12 ,  G02B6/122 ,  G01S17/10 ,  G02F1/095 ,  B60R11/00 ,  G02F1/01

Abstract: An integrated photonic circulator is described, an application of which may be deployed on a chip-scale light-detection and ranging (LiDAR) device. The photonic circulator includes a micro-ring resonator waveguide, a heating element, first and second bus waveguides, a magneto-optic substrate, a magneto-optic element, a magnetic ring disposed on a photonic substrate, and a silicon substrate. The first and second bus waveguides are coupled to the micro-ring resonator waveguide, and the micro-ring resonator waveguide is affixed onto a first side of the photonic substrate. The magneto-optic element and the magneto-optic substrate are arranged on the micro-ring resonator waveguide, the magnetic ring is affixed to the magneto-optic substrate, the heating element is affixed to the photonic substrate, the photonic substrate is affixed to the silicon substrate, and the magnetic ring is concentric with the micro-ring resonator.

公开(公告)号：US11500072B2

公开(公告)日：2022-11-15

申请号：US16814575

申请日：2020-03-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Raymond Sarkissian ,  Keyvan Sayyah ,  Biqin Huang ,  Ivan Alvarado ,  Shuoqin Wang

IPC: G01S7/481 ,  G01S7/4911 ,  G01S7/4912 ,  G01S17/88 ,  G02B6/12 ,  G02B6/122 ,  G01S17/10 ,  B60R11/00

Abstract: A photonic circulator deployed on a chip-scale light-detection and ranging (LiDAR) device includes a first arm that includes a first waveguide that is bonded onto a first member at a first bonding region, and a second arm that includes a second waveguide that is bonded onto a second member at a second bonding region. A first thermo-optic phase shifter is arranged on the first member and collocated with the first waveguide, and a second thermo-optic phase shifter is arranged on the second member and collocated with the second waveguide. The magneto-optic material and the first thermo-optic phase shifter of the first member cause a first phase shift in a first light beam travelling through the first waveguide, and the magneto-optic material and the second thermo-optic phase shifter of the second member cause a second phase shift in a second light beam travelling through the second waveguide.

公开(公告)号：US20210124031A1

公开(公告)日：2021-04-29

申请号：US16814726

申请日：2020-03-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Raymond Sarkissian ,  Keyvan Sayyah ,  Shuoqin Wang ,  Biqin Huang ,  Ivan Alvarado

IPC: G01S7/4911 ,  G01S7/481 ,  G01S17/931

Abstract: An architecture for a chip-scale optical phased array-based scanning frequency-modulated continuous wave (FMCW) Light-detection and ranging (LiDAR) device is described. The LiDAR device includes a laser, a transmit optical splitter, an optical circulator, photodetectors, and an optical phased array. The laser, the transmit optical splitter, the optical circulator, the photodetectors, and the optical phased array are arranged as a chip-scale package on a single semiconductor substrate. The laser generates a first light beam that is transmitted to the optical phased array aperture via the transmit optical splitter, the optical circulator, and the optical phased array. A fraction of the first light beam is transmitted to the photodetectors via the transmit optical splitter to serve as the optical local oscillator (LO), the aperture of the optical phased array captures a second light beam that is transmitted to the photodetectors via the optical phased array and the optical circulator.