US 12,241,777 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 Industrial, LLC, Webster, NY (US)
Filed on Dec. 21, 2023, as Appl. No. 18/392,856.
Application 18/392,856 is a division of application No. 17/716,818, filed on Apr. 8, 2022, granted, now 11,892,347.
Claims priority of provisional application 63/172,871, filed on Apr. 9, 2021.
Prior Publication US 2024/0159584 A1, May 16, 2024
Int. Cl. G01J 1/02 (2006.01); G01J 1/42 (2006.01)
CPC G01J 1/0252 (2013.01) [G01J 1/4257 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, at a thermochromic interface of a detector, a laser beam characterized by a beam intensity profile;
selecting a temperature set point for the detector, the temperature set point corresponding to an equilibrium temperature at the thermochromic interface;
capturing an image of the thermochromic interface;
determining, from the image, a partial intensity profile corresponding to at least a portion of the beam intensity profile;
assembling a reconstructed beam profile using the partial intensity profile;
if the reconstructed beam profile is not complete:
selecting updated temperature set points for the detector;
capturing additional images of the thermochromic interface;
determining, from the additional images, additional partial intensity profiles; and
assembling the reconstructed beam profile using the additional partial intensity profiles;
determining that the reconstructed beam profile is complete; and
outputting the reconstructed beam profile.