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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10976414 B1

PDFFull Text
Date of Patent:
Apr. 13, 2021

Filed:

Jun. 26, 2018

Heterogeneous integration of curved mirror structure for passive alignment in chip-scale lidar

Applicant:

GM Global Technology Operations Llc, Detroit, MI (US);

Inventors:

Keyvan Sayyah, Santa Monica, CA (US);

Oleg Efimov, Thousand Oaks, CA (US);

Pamela Patterson, Los Angeles, CA (US);

Raymond Sarkissian, Studio City, CA (US);

James H. Schaffner, Chatsworth, CA (US);

Biqin Huang, Torrance, CA (US);

David Hammon, Simi Valley, CA (US);

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);

Attorney:

Cantor Colburn LLP

Primary Examiner:

James R Hulka

Int. Cl.
CPC ...
G01S 7/48 (2006.01); G01S 7/481 (2006.01); G01S 7/4911 (2020.01); G01S 17/58 (2006.01); G01S 17/42 (2006.01); G01S 17/34 (2020.01); G01S 17/86 (2020.01); G01S 17/931 (2020.01); G01S 7/499 (2006.01); G01S 17/02 (2020.01); G02B 6/122 (2006.01); G02B 6/27 (2006.01); G02B 6/42 (2006.01); H01L 23/544 (2006.01); H01L 31/0232 (2014.01); H01L 31/16 (2006.01); G01S 17/00 (2020.01); G01S 17/32 (2020.01); G01S 7/4914 (2020.01); G01S 7/491 (2020.01); G01S 7/497 (2006.01); B81B 7/02 (2006.01); G02B 27/30 (2006.01); H01S 5/125 (2006.01); G01S 7/4913 (2020.01); G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
G01S 7/4815 (2013.01); B81B 7/02 (2013.01); G01S 7/4816 (2013.01); G01S 7/4817 (2013.01); G01S 7/4818 (2013.01); G01S 7/491 (2013.01); G01S 7/499 (2013.01); G01S 7/4911 (2013.01); G01S 7/4913 (2013.01); G01S 7/4914 (2013.01); G01S 7/4972 (2013.01); G01S 17/003 (2013.01); G01S 17/02 (2013.01); G01S 17/32 (2013.01); G01S 17/34 (2020.01); G01S 17/42 (2013.01); G01S 17/58 (2013.01); G01S 17/86 (2020.01); G01S 17/931 (2020.01); G02B 6/122 (2013.01); G02B 6/2766 (2013.01); G02B 6/4209 (2013.01); G02B 27/30 (2013.01); H01L 23/544 (2013.01); H01L 31/02327 (2013.01); H01L 31/16 (2013.01); H01S 5/125 (2013.01); B81B 2207/03 (2013.01); G02B 2006/0098 (2013.01); H01L 2223/54426 (2013.01); H01L 2223/54486 (2013.01);
Abstract

A chip-scale coherent lidar system includes a photonic chip that includes a light source, a transmit beam coupler to provide an output signal, and a receive beam coupler to receive a received signal based on a reflection of the output signal by a target. The system also includes a transmit beam steering device to transmit the output signal out of the system, and a receive beam steering device to obtain the received signal into the system. A transmit beam curved mirror reflects the output signal from the transmit beam coupler to the transmit beam steering device. A receive beam curved mirror reflects the received signal from the receive beam steering device to the receive beam coupler. The transmit beam curved mirror and the receive beam curved mirror are formed in a substrate that is heterogeneously integrated with the photonic chip.

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