US 12,147,076 B2
Optical signal routing devices and systems
James Dunphy, San Jose, CA (US); David Hutchison, Santa Clara, CA (US); Pierre-Yves Droz, Los Altos, CA (US); and Yeh-Jiun Tung, Mountain View, CA (US)
Assigned to Waymo LLC, Mountain View, CA (US)
Filed by Waymo LLC, Mountain View, CA (US)
Filed on Jun. 19, 2023, as Appl. No. 18/337,119.
Application 18/337,119 is a continuation of application No. 17/835,464, filed on Jun. 8, 2022, granted, now 11,714,233.
Application 17/835,464 is a continuation of application No. 16/667,833, filed on Oct. 29, 2019, granted, now 11,385,406, issued on Jul. 12, 2022.
Prior Publication US 2023/0333319 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 6/125 (2006.01); G01S 7/481 (2006.01); G02B 6/122 (2006.01); G02B 6/42 (2006.01); G01S 17/10 (2020.01); G01S 17/42 (2006.01)
CPC G02B 6/125 (2013.01) [G01S 7/4815 (2013.01); G02B 6/1228 (2013.01); G02B 6/4202 (2013.01); G01S 7/4812 (2013.01); G01S 17/10 (2013.01); G01S 17/42 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light detection and ranging (LIDAR) device comprising:
a substrate;
a waveguide disposed on the substrate, wherein the waveguide comprises an input end, a first section, a second section, a third section, and an output end, the first section extending between the input end and the second section, the second section extending between the first section and the third section, the third section extending between the second section and the output end, wherein the second section comprises a concave-shaped surface configured to focus light into the third section of the waveguide; and
a light emitter configured to emit light, wherein the light emitter is optically coupled to the input end of the waveguide.