公开(公告)号：WO2022192199A1

公开(公告)日：2022-09-15

申请号：PCT/US2022/019268

申请日：2022-03-08

申请人： LUMINAR, LLC

发明人： LACHAPELLE, Joseph G. ,  EICHENHOLZ, Jason M. ,  SINCORE, Alex Michael

IPC分类号： G01S7/4912 ,  G01S17/10 ,  H01S5/062 ,  H01S5/50 ,  G01S7/481 ,  G01S17/32 ,  H01S5/0625 ,  G01S17/89

摘要： In one embodiment, a lidar system includes a light source configured to emit (i) local-oscillator light and (ii) pulses of light, where each emitted pulse of light is coherent with a corresponding temporal portion of the local-oscillator light. The lidar system also includes a receiver configured to detect the local-oscillator light and a received pulse of light, the received pulse of light including a portion of one of the emitted pulses of light scattered by a target located a distance from the lidar system. The receiver includes a detector configured to produce a photocurrent signal corresponding to the local-oscillator light and the received pulse of light. The photocurrent signal includes a sum of a first term, a second term, and a third term.

公开(公告)号：WO2023059850A1

公开(公告)日：2023-04-13

申请号：PCT/US2022/045984

申请日：2022-10-07

申请人： LUMINAR, LLC

发明人： SHAH, Lawrence ,  BUSH, Zachary Ronald Dylan Thomas ,  SOTO, Elias ,  SINCORE, Alex Michael ,  LACHAPELLE, Joseph G. ,  GAALEMA, Stephen D. ,  EICHENHOLZ, Jason M.

IPC分类号： G01S7/481 ,  G01S7/484 ,  G01S7/4865 ,  G01S7/487 ,  G01S17/26 ,  G01S7/48 ,  G01S17/10 ,  G01S17/931 ,  G01S7/4802 ,  G01S7/4812 ,  G01S7/4814 ,  G01S7/4816 ,  G01S7/4817 ,  G01S7/4818 ,  G01S7/4873

摘要： In one embodiment, a lidar system includes a light source configured to emit pulses of light, where each emitted pulse of light includes a spectral signature of multiple different spectral signatures. The lidar system also includes a receiver configured to detect a received pulse of light, the received pulse of light including light from one of the emitted pulses of light scattered by a target located a distance from the lidar system. The emitted pulse of light includes one of the spectral signatures. The receiver includes a detector configured to produce a photocurrent signal corresponding to the received pulse of light, a frequency-detection circuit configured to determine, based on the photocurrent signal, a spectral signature of the received pulse of light, and a pulse-detection circuit configured to determine, based on the photocurrent signal, a time-of-arrival of the received pulse of light.

公开(公告)号：WO2022240554A2

公开(公告)日：2022-11-17

申请号：PCT/US2022/025328

申请日：2022-04-19

申请人： LUMINAR, LLC

发明人： SHAH, Lawrence ,  SINCORE, Alex Michael ,  CANNON, Roger S. ,  LACHAPELLE, Joseph G. ,  GAALEMA, Stephen D. ,  EICHENHOLZ, Jason M.

IPC分类号： G01S7/481 ,  G01S7/484 ,  G01S7/4863 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/894 ,  H01L31/105 ,  H01L31/107 ,  H01L31/109 ,  B62D15/02 ,  B62D15/025 ,  G01S17/26 ,  G01S7/4817 ,  G01S7/4818

摘要： In one embodiment, a lidar system includes a light source configured to emit (i) local-oscillator light and (ii) pulses of light. The lidar system also includes a receiver configured to detect the local-oscillator light and a received pulse of light, the received pulse of light including a portion of one of the emitted pulses of light scattered by a target located a distance from the lidar system. The receiver includes a detector configured to produce a photocurrent signal corresponding to a coherent mixing of the local-oscillator light and the received pulse of light. The detector includes a first input side and a second input side located opposite the first input side, where the received pulse of light is incident on the first input side of the detector, and the local-oscillator light is incident on the second input side of the detector.

公开(公告)号：WO2022035549A1

公开(公告)日：2022-02-17

申请号：PCT/US2021/041784

申请日：2021-07-15

申请人： LUMINAR, LLC

发明人： LACHAPELLE, Joseph G. ,  EICHENHOLZ, Jason M. ,  SINCORE, Alex Michael ,  SHAH, Lawrence

IPC分类号： G01S7/481 ,  G01S7/4912 ,  G01S17/34

摘要： In one embodiment, a lidar system includes a light source configured to emit an optical signal and a receiver that includes one or more detectors configured to detect a portion of the emitted optical signal scattered by a target located a distance from the lidar system. The lidar system also includes a photonic integrated circuit (PIC) that includes an input optical element configured to receive the portion of the scattered optical signal and couple the portion of the scattered optical signal into an input optical waveguide. The input optical waveguide is one of one or more optical waveguides of the PIC configured to convey the portion of the scattered optical signal to the one or more detectors of the receiver. The lidar system further includes a processor configured to determine the distance from the lidar system to the target.