公开(公告)号：US20250123399A1

公开(公告)日：2025-04-17

申请号：US18907120

申请日：2024-10-04

Applicant: Luminar Technologies, Inc.

Inventor： Lawrence Shah ,  Morris B. Bowers ,  Liviu I. Voicu

IPC: G01S17/931 ,  G01S7/48 ,  G01S7/481 ,  G01S7/497 ,  G01S17/10

Abstract: In one embodiment, a sensor includes a window, a light source that can emit an optical signal toward the window, a receiver to detect an optical signal reflected off a target and received through the window, and a controller to determine a characteristic of the target. The emitted optical signal is capable of being used to reduce an obscurant on the window by absorption, as well as to scatter off of targets located in the environment of the sensor to obtain information about that environment.

公开(公告)号：US12228650B2

公开(公告)日：2025-02-18

申请号：US17183522

申请日：2021-02-24

Applicant: Luminar Technologies, Inc.

Inventor： Joseph G. LaChapelle ,  Jason M. Eichenholz ,  Alex Michael Sincore ,  Lawrence Shah

IPC: G01S17/93 ,  B60W60/00 ,  G01S7/481 ,  G01S7/484 ,  G01S7/486 ,  G01S7/4861 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/26 ,  G01S17/88 ,  G01S17/931 ,  G02B6/12 ,  H01S5/026 ,  H01S5/065 ,  H01S5/125

Abstract: In one embodiment, a light source is configured to emit an optical signal. The light source includes a seed laser diode configured to produce a seed optical signal and a semiconductor optical amplifier (SOA) configured to amplify the seed optical signal to produce the emitted optical signal. The light source also includes an optical isolator disposed between the seed laser diode and the SOA, where the optical isolator is configured to (i) transmit the seed optical signal to the SOA and (ii) reduce an amount of light that propagates from the SOA toward the seed laser diode.

公开(公告)号：US10348051B1

公开(公告)日：2019-07-09

申请号：US15983828

申请日：2018-05-18

Applicant: Luminar Technologies, Inc.

Inventor： Lawrence Shah ,  Alain Villeneuve ,  Cheng Zhu ,  Laurance S. Lingvay

IPC: H01S3/094 ,  G02B6/024 ,  H01S3/067

Abstract: In one embodiment, a fiber-optic amplifier includes an optical gain fiber configured to amplify input light received from a seed laser. The optical gain fiber includes a first gain section configured to: receive the seed-laser input light and co-propagating pump light; and amplify the seed-laser input light as it propagates along the first gain section. The seed-laser input light and the co-propagating pump light propagate along the first gain section in a same direction. The optical gain fiber also includes a second gain section configured to: receive the amplified input light from the first gain section; receive counter-propagating pump light; and further amplify the amplified input light as it propagates along the second gain section. The amplified input light and the counter-propagating pump light propagate along the second gain section in opposite directions. The fiber-optic amplifier also includes a first pump laser diode and a second pump laser diode.

公开(公告)号：US20210088657A1

公开(公告)日：2021-03-25

申请号：US17101146

申请日：2020-11-23

Applicant: Luminar Technologies, Inc.

Inventor： Lawrence Shah ,  Jason M. Eichenholz ,  Joseph G. LaChapelle ,  Alex Michael Sincore ,  Cheng Zhu

IPC: G01S17/00

Abstract: In one embodiment, a lidar system includes a light source configured to emit an optical signal. The light source includes a seed laser diode configured to produce a seed optical signal and a semiconductor optical amplifier (SOA) configured to amplify the seed optical signal to produce an amplified seed optical signal, where the emitted optical signal includes the amplified seed optical signal. The light source further includes an electronic driver configured to supply electrical current to the seed laser diode and electrical current to the SOA. The lidar system also includes a receiver configured to detect a portion of the emitted optical signal scattered by a target located a distance from the lidar system. The lidar system further includes a processor configured to determine the distance from the lidar system to the target.