US 12,092,766 B2
Injection locked on-chip laser to external on-chip resonator
Jacob Levy, Sierra Madre, CA (US); Ayan Chakrabarty, Glendora, CA (US); Vala Fathipour, Pasadena, CA (US); and Karim El Amili, Arcadia, CA (US)
Assigned to GM Cruise Holdings LLC, San Francisco, CA (US)
Filed by GM Cruise Holdings LLC, San Francisco, CA (US)
Filed on Oct. 10, 2022, as Appl. No. 17/962,728.
Application 17/962,728 is a continuation of application No. 16/836,302, filed on Mar. 31, 2020, granted, now 11,467,262.
Prior Publication US 2023/0036316 A1, Feb. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01C 3/08 (2006.01); G01S 7/484 (2006.01); G01S 17/34 (2020.01); H01S 5/062 (2006.01)
CPC G01S 7/484 (2013.01) [G01S 17/34 (2020.01); H01S 5/06206 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An integrated circuit chip, comprising:
a resonator formed of an electrooptic material, the resonator configured to receive light emitted by a laser and return feedback light to the laser, wherein a separate integrated circuit chip comprises the laser, and wherein the feedback light causes injection locking of the laser of the separate integrated circuit chip to the resonator to control the light emitted by the laser;
a waveguide, wherein an end of the waveguide is configured to be optically coupled to the separate integrated circuit chip; and
a mirror;
wherein the resonator comprises:
a first coupling region evanescently coupled to the waveguide; and
a second coupling region evanescently coupled to the mirror.