ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,097, issued on Oct. 20, was assigned to UNIVERSITY OF NOTRE DAME DU LAC (South Bend, Ind.).

"Systems and methods for providing high-index-contrast ridge waveguide lasers" was invented by Douglas Hall (South Bend, Ind.), Di Liang (South Bend, Ind.) and Jinyang Li (South Bend, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system may be configured for a laser configured to emit a circularly symmetric beam. Some embodiments of this laser may include heterostructure configured via a lithography and an etching, each satisfying at least one first criterion. And the laser may include an edge-emitter configured to be deep-etched, be confined via an o...