US Patent Issued to Wisconsin Alumni Research Foundation on Sept. 9 for "High-power, single-spatial-mode quantum cascade lasers" (Wisconsin, Ohio Inventors)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,413,047, issued on Sept. 9, was assigned to Wisconsin Alumni Research Foundation (Madison, Wis.).

"High-power, single-spatial-mode quantum cascade lasers" was invented by Luke J. Mawst (Sun Prairie, Wis.), Thomas L. Earles (Verona, Wis.), Christopher A. Sigler (Dayton, Ohio) and Dan Botez (Madison, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Single-mode quantum cascade semiconductor lasers are provided. The lasers comprise a laser element, the laser element comprising a quantum cascade active layer; an upper cladding layer over the quantum cascade active layer; and a lower cladding layer under the quantum cascade active layer, wherein the quant...