US 11,892,347 B2
Techniques for laser beam sensing and profiling using temperature-sensitive structures
Per Adamson, Conesus, NY (US); Mike Cinquino, Conesus, NY (US); Joseph Lawson, Rochester, NY (US); and Jordan Leidner, Brighton, NY (US)
Assigned to RAM Photonics Industrial, LLC, Webster, NY (US)
Filed by RAM Photonics, LLC, San Diego, CA (US)
Filed on Apr. 8, 2022, as Appl. No. 17/716,818.
Claims priority of provisional application 63/172,871, filed on Apr. 9, 2021.
Prior Publication US 2022/0326072 A1, Oct. 13, 2022
Int. Cl. G01J 1/02 (2006.01); G01J 1/42 (2006.01)
CPC G01J 1/0252 (2013.01) [G01J 1/4257 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A system for detecting a laser beam, the system comprising:
a controller comprising a processor and a memory;
a thermoelectric cooler comprising a hot side and a cold side, the thermoelectric cooler operable to receive a series of electrical signals from the controller;
a heat spreader comprising a first surface and a second surface, the heat spreader in thermal communication with the thermoelectric cooler; and
a temperature-sensitive structure characterized by an operating temperature band and in thermal communication with the heat spreader, wherein the temperature-sensitive structure is configured to receive the laser beam, and wherein:
a region of local heating is produced on the temperature-sensitive structure in response to receiving the laser beam; and
the memory stores instructions that, when executed by the processor, cause the controller to:
generate the series of electrical signals;
cause the thermoelectric cooler to transfer heat from the cold side to the hot side; and
maintain temperatures of the region within the operating temperature band.