The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2026
Filed:
May. 24, 2023
Freedom Photonics Llc, Goleta, CA (US);
Paul Orville Leisher, Livermore, CA (US);
Elliot Michael Burke, Santa Barbara, CA (US);
Freedom Photonics, LLC, Santa Barbara, CA (US);
Abstract
A laser light source comprises a laser array comprising a plurality of semiconductor lasers on a diode bar having bar smile. The laser light source uses angular dispersion to distribute different wavelengths of light from the semiconductor lasers into different directions and a partially reflective surface to retroreflect a portion of the light that is normally incident on the reflective surface back to semiconductor lasers to lower the lasing threshold for those wavelengths. A portion of the light normally incident on the partially reflective surface is transmitted therethrough providing an output of the laser light source having increased collimation despite the diode bar exhibiting bar smile.