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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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2.发明申请公开(公告)号：US20190018112A1
公开(公告)日：2019-01-17
申请号：US16018730
申请日：2018-06-26
Applicant: GM Global Technology Operations LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Pamela Patterson , Raymond Sarkissian , James H. Schaffner , Biqin Huang , David Hammon
IPC: G01S7/481 , H01L31/16 , H01L31/0232 , H01L23/544 , G01S7/491 , G01S17/93
Abstract: A chip-scale coherent lidar system includes a photonic chip that includes a light source, a transmit beam coupler to provide an output signal, and a receive beam coupler to receive a received signal based on a reflection of the output signal by a target. The system also includes a transmit beam steering device to transmit the output signal out of the system, and a receive beam steering device to obtain the received signal into the system. A transmit beam curved mirror reflects the output signal from the transmit beam coupler to the transmit beam steering device. A receive beam curved mirror reflects the received signal from the receive beam steering device to the receive beam coupler. The transmit beam curved mirror and the receive beam curved mirror are formed in a substrate that is heterogeneously integrated with the photonic chip.
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公开(公告)号：US10564263B2
公开(公告)日：2020-02-18
申请号：US16019691
申请日：2018-06-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oleg Efimov , Raymond Sarkissian , Keyvan Sayyah , David Hammon
IPC: G01S7/491 , G02B6/27 , G02B6/42 , G01S17/02 , G01S7/481 , G01S7/4911 , G01S17/58 , G01S17/93 , H01L23/544 , H01L31/0232 , H01L31/16 , G01S17/00 , G01S17/32 , G01S7/4914 , G01S7/497 , B81B7/02 , G02B27/30 , H01S5/125 , G01S7/4913
Abstract: A LIDAR system, optical coupler for a LIDAR system and method of optical communication. The LIDAR system includes an optical coupler having a chip-side face in optical communication with a photonic chip and a scanner-side face in optical communication with a scanner, the optical coupler comprising a polarization rotator and a birefringent wedge. A first beam of light is transmitted from the first location toward a chip-side face of an optical coupler to direct the first beam of light, via the optical coupler, along an optical path at a scanner-side face of the optical coupler. A second beam of light is received along the optical path at the scanner-side face and directed the second beam of light toward a second location.
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公开(公告)号：US20190018113A1
公开(公告)日：2019-01-17
申请号：US16018831
申请日：2018-06-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Pamela R. Patterson , Raymond Sarkissian , James H. Schaffner , Biqin Huang , David Hammon
Abstract: A LIDAR system, LIDAR chip and method of manufacturing a LIDAR chip. The LIDAR system includes a photonic chip configured to transmit a transmitted light beam and to receive a reflected light beam, a scanner for directing the transmitted light beam towards a direction in space and receiving the reflected light beam from the selected direction, and a fiber-based optical coupler. The photonic chip and the scanner are placed on a semiconductor integrated platform (SIP). The fiber-based optical coupler is placed on top of the photonic chip to optically couple to the photonic chip for directing the a transmitted light beam from the photonic chip to the scanner and for directing a reflected light beam from the scanner to the photonic chip.
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5.发明授权公开(公告)号：US10976414B2
公开(公告)日：2021-04-13
申请号：US16018730
申请日：2018-06-26
Applicant: GM Global Technology Operations LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Pamela Patterson , Raymond Sarkissian , James H. Schaffner , Biqin Huang , David Hammon
IPC: G01S7/48 , G01S7/481 , 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 , G01S7/491 , G01S7/497 , B81B7/02 , G02B27/30 , H01S5/125 , G01S7/4913 , G02B6/00
Abstract: A chip-scale coherent lidar system includes a photonic chip that includes a light source, a transmit beam coupler to provide an output signal, and a receive beam coupler to receive a received signal based on a reflection of the output signal by a target. The system also includes a transmit beam steering device to transmit the output signal out of the system, and a receive beam steering device to obtain the received signal into the system. A transmit beam curved mirror reflects the output signal from the transmit beam coupler to the transmit beam steering device. A receive beam curved mirror reflects the received signal from the receive beam steering device to the receive beam coupler. The transmit beam curved mirror and the receive beam curved mirror are formed in a substrate that is heterogeneously integrated with the photonic chip.
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Patent Agency Ranking
公开(公告)号：US20190018121A1
公开(公告)日：2019-01-17
申请号：US16017278
申请日：2018-06-25
Applicant: GM Global Technology Operations LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Pamela R. Patterson , Raymond Sarkissian , James H. Schaffner , Biqin Huang , David Hammon
Abstract: A lidar system includes a light source to generate a frequency modulated continuous wave (FMCW) signal, and a waveguide splitter to split the FMCW signal into an output signal and a local oscillator (LO) signal. A transmit coupler provides the output signal for transmission. A receive lens obtains a received signal resulting from reflection of the output signal by a target. A waveguide coupler combines the received signal and the LO signal into a first combined signal and a second combined signal. A first phase modulator and second phase modulator respectively adjust a phase of the first combined signal and the second combined signal to provide a first phase modulated signal and a second phase modulated signal to a first photodetector and a second photodetector. A processor processes a first electrical signal and a second electrical signal from the first and second photodetectors to obtain information about the target.
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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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公开(公告)号：US20190018120A1
公开(公告)日：2019-01-17
申请号：US16019691
申请日：2018-06-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Oleg Efimov , Raymond Sarkissian , Keyvan Sayyah , David Hammon
Abstract: A LIDAR system, optical coupler for a LIDAR system and method of optical communication. The LIDAR system includes an optical coupler having a chip-side face in optical communication with a photonic chip and a scanner-side face in optical communication with a scanner, the optical coupler comprising a polarization rotator and a birefringent wedge. A first beam of light is transmitted from the first location toward a chip-side face of an optical coupler to direct the first beam of light, via the optical coupler, along an optical path at a scanner-side face of the optical coupler. A second beam of light is received along the optical path at the scanner-side face and directed the second beam of light toward a second location.
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公开(公告)号：US11002832B2
公开(公告)日：2021-05-11
申请号：US16018831
申请日：2018-06-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Oleg Efimov , Pamela R. Patterson , Raymond Sarkissian , James H. Schaffner , Biqin Huang , David Hammon
IPC: G01S7/48 , G01S7/481 , 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 , G01S7/491 , G01S7/497 , B81B7/02 , G02B27/30 , H01S5/125 , G01S7/4913 , G02B6/00
Abstract: A LIDAR system, LIDAR chip and method of manufacturing a LIDAR chip. The LIDAR system includes a photonic chip configured to transmit a transmitted light beam and to receive a reflected light beam, a scanner for directing the transmitted light beam towards a direction in space and receiving the reflected light beam from the selected direction, and a fiber-based optical coupler. The photonic chip and the scanner are placed on a semiconductor integrated platform (SIP). The fiber-based optical coupler is placed on top of the photonic chip to optically couple to the photonic chip for directing the a transmitted light beam from the photonic chip to the scanner and for directing a reflected light beam from the scanner to the photonic chip.
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公开(公告)号：US10914821B2
公开(公告)日：2021-02-09
申请号：US16017278
申请日：2018-06-25
Applicant: GM Global Technology Operations LLC
Inventor： Pamela R. Patterson , Keyvan Sayyah , Oleg Efimov , Raymond Sarkissian , James H. Schaffner , Biqin Huang , David Hammon
IPC: G01S7/00 , G01S7/481 , 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 , G01S7/491 , G01S7/497 , B81B7/02 , G02B27/30 , H01S5/125 , G01S7/4913 , G02B6/00
Abstract: A lidar system includes a light source to generate a frequency modulated continuous wave (FMCW) signal, and a waveguide splitter to split the FMCW signal into an output signal and a local oscillator (LO) signal. A transmit coupler provides the output signal for transmission. A receive lens obtains a received signal resulting from reflection of the output signal by a target. A waveguide coupler combines the received signal and the LO signal into a first combined signal and a second combined signal. A first phase modulator and second phase modulator respectively adjust a phase of the first combined signal and the second combined signal to provide a first phase modulated signal and a second phase modulated signal to a first photodetector and a second photodetector. A processor processes a first electrical signal and a second electrical signal from the first and second photodetectors to obtain information about the target.
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