Gm Global Technolgoy Operations, Inc.

Richard Kremer

Timothy J Talty

Keyvan R Sayyah

Michael Mulqueen

Pamela R Patterson

Oleg M Efimov

Biqin Huang

Raymond Sarkissian

James H Schaffner

David Hammon

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.

Chip-scale Lidar with enhanced range performance

A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having a laser, an on-chip frequency shifter, a combiner and a first set of photodetectors. The laser generates a transmitted light beam and an associated local oscillator beam within the photonic chip. The on-chip frequency shifter shifts a frequency of the local oscillator beam. The combiner combines a reflected light beam with the frequency-shifted local oscillator beam, wherein the reflected light beam is a reflection of the transmitted light beam from the object to generate a first electronic signal at the first set of photodetectors. A processor obtains a first measurement of a parameter of the object from the first electronic signal. The vehicle includes a navigation system for navigating the vehicle with respect to the object using at least the first measurement of the parameter.

Lidar system with integrated frequency shifter for true doppler detection

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.

Lidar system with integrated circulator

A vehicle, Lidar system and method of detecting an object. The Lidar system includes an optical phase array and a mirror. The optical phase array directs a transmitted light beam generated by a laser along a first direction within a first plane. The mirror receives the transmitted light beam from the optical phase array and directs the transmitted light beam along a second direction within a second plane.

Hybrid optical phase array and MEMS beamsteering for chip-scale Lidar system

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.

Single MEMS mirror chip scale LIDAR

A chip-scale lidar system includes a first light source to output a first signal, and a second light source to output a second signal. A transmit beam coupler provides an output signal for transmission that includes a portion of the first signal and a portion of the second signal, and receive beam coupler obtains a received signal resulting from reflection of the output signal by a target. The system includes a first and second set of photodetectors to obtain a first and second set of electrical currents from a first and second set of combined signals including a first and second portion of the received signal. A processor obtains Doppler information about the target from the second set of electrical currents and obtains range information about the target from the first set of electrical currents and the second set of electrical currents.

Growing community of inventors

Calabasas, CA, United States of America

Richard Kremer