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公开(公告)号：US20200088848A1
公开(公告)日：2020-03-19
申请号：US16554858
申请日：2019-08-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Richard Kremer , Timothy J. Talty , Pamela R. Patterson , Biqin Huang , Michael Mulqueen
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having an aperture, one or more photodetectors and a circulator. A transmitted light beam generated within the photonic chip exits the photonic chip via the aperture and a reflected light beam enters the photonic chip via the aperture, the reflected light beam being a reflection of the transmitted light beam from the object. The one or more photodetectors measure the parameter of the object from at least the reflected light beam. The circulator integrated into the photonic chip directs the transmitted light beam toward the aperture and directs the reflected light beam from the aperture to the one or more photodetectors. A navigation system navigates the vehicle with respect to the object based on the parameter of the object.
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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：US11573297B2
公开(公告)日：2023-02-07
申请号：US16554858
申请日：2019-08-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Richard Kremer , Timothy J. Talty , Pamela R. Patterson , Biqin Huang , Michael Mulqueen
IPC: G01S7/481 , G05D1/02 , G01S17/08 , G01S17/931 , G02B6/12 , G01S17/88 , G01S17/04 , G01S17/66 , G01S17/87
Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having an aperture, one or more photodetectors and a circulator. A transmitted light beam generated within the photonic chip exits the photonic chip via the aperture and a reflected light beam enters the photonic chip via the aperture, the reflected light beam being a reflection of the transmitted light beam from the object. The one or more photodetectors measure the parameter of the object from at least the reflected light beam. The circulator integrated into the photonic chip directs the transmitted light beam toward the aperture and directs the reflected light beam from the aperture to the one or more photodetectors. A navigation system navigates the vehicle with respect to the object based on the parameter of the object.
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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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Patent Agency Ranking
公开(公告)号：US20200088845A1
公开(公告)日：2020-03-19
申请号：US16555367
申请日：2019-08-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Timothy J. Talty , Oleg Efimov , Michael Mulqueen , Keyvan Sayyah , Pamela R. Patterson , Raymond Sarkissian , James H. Schaffner , David Hammon , Biqin Huang
Abstract: A Lidar system, photonic chip and method of detecting an object is disclosed. The Lidar system includes the photonic chip. The photonic chip includes a laser and a local oscillator waveguide. The laser is integrated into the photonic chip and generates a leakage energy at a back facet of the laser for use as a local oscillator beam for the photonic chip. The local oscillator waveguide receives the leakage energy as the local oscillator beam. The laser further generates a transmitted light beam through a front facet of the photonic chip, combining the leakage energy with a reflection of the transmitted light beam form an object, and detects a combination of the reflected light beam and the leakage energy to determine a parameter of the object.
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公开(公告)号：US20200049801A1
公开(公告)日：2020-02-13
申请号：US16059473
申请日：2018-08-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Pamela R. Patterson , Raymond Sarkissian , Richard Kremer , Oleg Efimov
Abstract: A chip-scale LIDAR (light detection and ranging) system, optical package and LIDAR platform. The system includes a photonic chip, a laser associated with the photonic chip, an optical circulator, and a MEMS scanner. The laser, the optical circulator and the MEMS scanner are collinear. The photonic chip includes an edge coupler. The optical package includes a housing having an aperture, and a platform within the housing. The platform includes the laser, an optical circulator, and MEMS scanner.
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公开(公告)号：US20190018114A1
公开(公告)日：2019-01-17
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
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：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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公开(公告)号：US11105900B2
公开(公告)日：2021-08-31
申请号：US16059473
申请日：2018-08-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Keyvan Sayyah , Pamela R. Patterson , Raymond Sarkissian , Richard Kremer , Oleg Efimov
Abstract: A chip-scale LIDAR (light detection and ranging) system, optical package and LIDAR platform. The system includes a photonic chip, a laser associated with the photonic chip, an optical circulator, and a MEMS scanner. The laser, the optical circulator and the MEMS scanner are collinear. The photonic chip includes an edge coupler. The optical package includes a housing having an aperture, and a platform within the housing. The platform includes the laser, an optical circulator, and MEMS scanner.
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