US 11,815,720 B1
Waveguide heating in LIDAR systems
Amir Ali Tavallaee, San Francisco, CA (US); Amir Hanjani, Cincinnati, OH (US); and Chen Chen, Arcadia, CA (US)
Assigned to SiLC Technologies, Inc., Monrovia, CA (US)
Filed by SiLC Technologies, Inc., Monrovia, CA (US)
Filed on Jan. 19, 2021, as Appl. No. 17/152,738.
Int. Cl. G02B 6/293 (2006.01); G02B 6/42 (2006.01); G01S 7/481 (2006.01); G01S 17/34 (2020.01)
CPC G02B 6/29395 (2013.01) [G01S 7/4814 (2013.01); G01S 17/34 (2020.01); G02B 6/29328 (2013.01); G02B 6/4215 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A waveguide heating system, comprising:
an optical waveguide; and
a heater configured to heat the waveguide, the heater including multiple heating elements,
the heater having one or two conditions selected from a group consisting of a first condition and a second condition,
the first condition being the heater including multiple interior connectors that are each included in an electrical pathway between a pair of the heating elements, the interior connectors being connected in parallel and providing electrical communication between the heating elements included in the pair, and
the second condition being multiple exterior connectors that are each included in an electrical pathway between electronics and a first one of the heating elements, the exterior connectors being connected in parallel and providing electrical communication between the electronics and the first heating element, and the electronics being configured to apply an electrical bias to the heater.