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    PULSED LASER FOR LIDAR SYSTEM
    83.
    发明申请
    PULSED LASER FOR LIDAR SYSTEM 审中-公开

    公开(公告)号：US20170155225A1

    公开(公告)日：2017-06-01

    申请号：US15363795

    申请日：2016-11-29

    申请人： Luminar Technologies, Inc.

    发明人： Alain Villeneuve ,  Jason M. Eichenholz

    IPC分类号： H01S3/067 ,  H01S3/094 ,  H01S5/40 ,  G01S7/481 ,  H01S3/11 ,  H01S3/10 ,  H01S3/16 ,  G01S17/08 ,  H01S3/0941 ,  H01S3/08

    摘要： In one embodiment, a laser system includes a seed laser configured to produce optical seed pulses. The laser system also includes a first fiber-optic amplifier configured to amplify the seed pulses by a first amplifier gain to produce a first-amplifier output that includes amplified seed pulses and amplified spontaneous emission (ASE). The laser system further includes a first optical filter configured to remove from the first-amplifier output an amount of the ASE. The laser system also includes a second fiber-optic amplifier configured to receive the amplified seed pulses from the first optical filter and amplify the received pulses by a second amplifier gain to produce output pulses. The output pulses have output-pulse characteristics that include: a pulse repetition frequency of less than or equal to 100 MHz; a pulse duration of less than or equal to 20 nanoseconds; and a duty cycle of less than or equal to 1%.

    LIDAR SYSTEM WITH DISTRIBUTED LASER AND MULTIPLE SENSOR HEADS
    84.
    发明申请
    LIDAR SYSTEM WITH DISTRIBUTED LASER AND MULTIPLE SENSOR HEADS 审中-公开

    公开(公告)号：US20170153319A1

    公开(公告)日：2017-06-01

    申请号：US15363726

    申请日：2016-11-29

    申请人： Luminar Technologies, Inc.

    发明人： Alain Villeneuve ,  Jason M. Eichenholz

    IPC分类号： G01S7/481 ,  G01S7/486 ,  G01S17/10

    摘要： In one embodiment, a lidar system includes a light source configured to emit pulses of light. The lidar system also includes multiple optical links and multiple sensor heads. Each optical link couples the light source to a corresponding sensor head, and each optical link is configured to convey at least a portion of the emitted pulses of light from the light source to the corresponding sensor head. Each sensor head includes a scanner configured to scan pulses of light across a field of regard of the sensor head, where the scanned pulses of light include the portion of the emitted pulses of light conveyed from the light source to the sensor head by the corresponding optical link. Each sensor head also includes a receiver configured to detect at least a portion of the scanned pulses of light scattered or reflected by a target located downrange from the sensor head.

    LIDAR SYSTEM WITH HUMIDITY COMPENSATION
    87.
    发明申请
    LIDAR SYSTEM WITH HUMIDITY COMPENSATION 审中-公开

    公开(公告)号：US20200300990A1

    公开(公告)日：2020-09-24

    申请号：US16360435

    申请日：2019-03-21

    申请人： Luminar Technologies, Inc.

    发明人： Jason M. Eichenholz

    IPC分类号： G01S7/497 ,  G01S7/484 ,  G01S7/486 ,  G01S17/93 ,  G01S17/08

    摘要： In one embodiment, a lidar system includes a light source configured to emit an optical signal that is directed into a field of regard (FOR) of the lidar system. The lidar system also includes a receiver configured to: receive a portion of the emitted optical signal scattered by a target located in the FOR a distance from the lidar system; and produce an electrical signal corresponding to the received optical signal, where the electrical signal is related to a preliminary value of an optical characteristic of the received optical signal. The lidar system further includes a processor coupled to the receiver and configured to: determine the distance to the target; receive a humidity value; and determine a corrected value of the optical characteristic of the received optical signal based at least in part on the electrical signal produced by the receiver, the distance to the target, and the humidity value.