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公开(公告)号：US11067670B2
公开(公告)日：2021-07-20
申请号：US16020202
申请日：2018-06-27
Applicant: GM Global Technology Operations LLC
Inventor： Pamela R. Patterson , Biqin Huang , James H. Schaffner , Keyvan Sayyah , Oleg Efimov , Raymond Sarkissian
IPC: G01S7/481 , G01S17/93 , G01S7/491 , G01S7/4911 , G01S17/58 , G01S17/42 , G01S17/34 , G01S17/86 , G01S17/931 , G01S7/499 , G01S17/02 , G02B6/122 , G02B6/27 , G02B6/42 , H01L23/544 , H01L31/0232 , H01L31/16 , G01S17/00 , G01S17/32 , G01S7/4914 , G01S7/497 , B81B7/02 , G02B27/30 , H01S5/125 , G01S7/4913 , G02B6/00
Abstract: A lidar system includes a photonic chip including a light source and a transmit beam coupler to provide an output signal for transmission. The output signal is a frequency modulated continuous wave (FMCW) signal. A transmit beam steering device transmits the output signal from the transmit beam coupler of the photonic chip. A receive beam steering device obtains a reflection of the output signal by a target and provides the reflection as a received signal to a receive beam coupler of the photonic chip. The photonic chip, the transmit beam steering device, and the receive beam steering device are heterogeneously integrated into an optical engine.
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公开(公告)号：US20200088884A1
公开(公告)日：2020-03-19
申请号：US16554090
申请日：2019-08-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Biqin Huang , Raymond Sarkissian , James H. Schaffner , David Hammon , Richard Kremer , Timothy J. Talty , Michael Mulqueen , Pamela R. Patterson
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip, and a laser integrated into the photonic chip. The laser has a front facet located at a first aperture of the photonic chip to direct a transmitted light beam into free space. A reflected light beam that is a reflection of the transmitted light beam is received at the photonic chip and a parameter of the object is determined from a comparison of the transmitted light beam and the reflected light beam. A navigation system operates the vehicle with respect to the object based on a parameter of the object.
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13.发明申请公开(公告)号：US20190018198A1
公开(公告)日：2019-01-17
申请号：US16019686
申请日：2018-06-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Pamela R. Patterson , Raymond Sarkissian , Biqin Huang
Abstract: A photonic chip, an edge coupler for an integrated photonic system and a method for coupling a laser to the photonic chip. The edge coupler includes a waveguide of the photonic system having a longitudinal axis. The longitudinal axis of a waveguide of the photonic chip is aligned with a longitudinal axis of the laser. The facet of the waveguide facing the laser is at a non-perpendicular angle with respect to the longitudinal axis. Light is transmitted from the laser into the waveguide via the angled facet.
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公开(公告)号：US11579303B2
公开(公告)日：2023-02-14
申请号：US16554090
申请日：2019-08-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Biqin Huang , Raymond Sarkissian , James H. Schaffner , David Hammon , Richard Kremer , Timothy J. Talty , Michael Mulqueen , Pamela R. Patterson
IPC: G01S17/931 , G01S7/48 , G01S17/32 , G01S7/481 , G05D1/02
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip, and a laser integrated into the photonic chip. The laser has a front facet located at a first aperture of the photonic chip to direct a transmitted light beam into free space. A reflected light beam that is a reflection of the transmitted light beam is received at the photonic chip and a parameter of the object is determined from a comparison of the transmitted light beam and the reflected light beam. A navigation system operates the vehicle with respect to the object based on a parameter of the object.
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Patent Agency Ranking
公开(公告)号：US11226403B2
公开(公告)日：2022-01-18
申请号：US15957974
申请日：2018-04-20
Applicant: GM Global Technology Operations LLC
Inventor： Keyvan Sayyah , Raymond Sarkissian , Oleg Efimov , Pamela R. Patterson
IPC: G01S7/481 , G01S7/4911 , G01S17/58 , G01S17/34 , G01S17/931 , G01S17/02 , G02B6/122 , G02B6/42 , H01L31/0232 , H01L31/16 , G01S17/00 , G01S17/32 , G01S7/491 , G01S17/42 , G01S17/86 , G01S7/499 , G02B6/27 , H01L23/544 , G01S7/4914 , G01S7/497 , B81B7/02 , G02B27/30 , H01S5/125 , G01S7/4913 , G02B6/00
Abstract: A chip-scale coherent lidar system includes a master oscillator integrated on a chip to simultaneously provide a signal for transmission and a local oscillator (LO) signal. The system also includes a beam steering device to direct an output signal obtained from the signal for transmission out of the system, and a combiner on the chip to combine the LO signal and a return signal resulting from a reflection of the output signal by a target. One or more photodetectors obtain a result of interference between the LO signal and the return signal to determine information about the target.
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公开(公告)号：US11085998B2
公开(公告)日：2021-08-10
申请号：US16814601
申请日：2020-03-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Raymond Sarkissian , Biqin Huang , Pamela R. Patterson
IPC: G01S17/88 , G02B6/12 , G02B6/122 , G01S7/481 , G01S7/4911 , G01S7/4912 , G01S17/10 , B60R11/00
Abstract: A photonic edge coupler includes a slab waveguide and a ridge waveguide. The ridge waveguide includes a silicon wire waveguide, which includes a tapered portion. A first end of the slab waveguide is joined to the ridge waveguide at a junction, and a second end of the slab waveguide forms a first facet. The ridge waveguide defines a longitudinal axis that is associated with a direction of a light signal therein. The first facet is angled at less than 90 degrees relative to the longitudinal axis associated with the direction of the light signal therein. The first facet is disposed opposite to a laser facet associated with a laser waveguide. The longitudinal axis of the ridge waveguide defines a first center point, and the laser facet and the associated laser waveguide define a second center point. The second center point is laterally offset from the first center point.
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公开(公告)号：US20210124118A1
公开(公告)日：2021-04-29
申请号：US16814601
申请日：2020-03-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Raymond Sarkissian , Biqin Huang , Pamela R. Patterson
Abstract: A photonic edge coupler includes a slab waveguide and a ridge waveguide. The ridge waveguide includes a silicon wire waveguide, which includes a tapered portion. A first end of the slab waveguide is joined to the ridge waveguide at a junction, and a second end of the slab waveguide forms a first facet. The ridge waveguide defines a longitudinal axis that is associated with a direction of a light signal therein. The first facet is angled at less than 90 degrees relative to the longitudinal axis associated with the direction of the light signal therein. The first facet is disposed opposite to a laser facet associated with a laser waveguide. The longitudinal axis of the ridge waveguide defines a first center point, and the laser facet and the associated laser waveguide define a second center point. The second center point is laterally offset from the first center point.
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公开(公告)号：US20190052047A1
公开(公告)日：2019-02-14
申请号：US16018852
申请日：2018-06-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Pamela R. Patterson , Biqin Huang
Abstract: A method of manufacturing a LIDAR chip and applying an anti-reflection (AR) coating to a coupling structure of the LIDAR chip. The coupling structure if formed on a wafer. A pocket is formed in the wafer adjacent the coupling structure. The AR material is deposited on top of the wafer and coupling structure. The AR material is etched to form the AR coating on the coupling structure.
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公开(公告)号：US20190018139A1
公开(公告)日：2019-01-17
申请号：US15957974
申请日：2018-04-20
Applicant: GM Global Technology Operations LLC
Inventor： Keyvan Sayyah , Raymond Sarkissian , Oleg Efimov , Pamela R. Patterson
Abstract: A chip-scale coherent lidar system includes a master oscillator integrated on a chip to simultaneously provide a signal for transmission and a local oscillator (LO) signal. The system also includes a beam steering device to direct an output signal obtained from the signal for transmission out of the system, and a combiner on the chip to combine the LO signal and a return signal resulting from a reflection of the output signal by a target. One or more photodetectors obtain a result of interference between the LO signal and the return signal to determine information about the target.
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