US Patent Issued to II-VI DELAWARE on Dec. 2 for "Vertical cavity surface emitting laser (VCSEL) emitter with guided-antiguided waveguide" (Swiss Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,273, issued on Dec. 2, was assigned to II-VI DELAWARE INC. (Wilmington, Del.).

"Vertical cavity surface emitting laser (VCSEL) emitter with guided-antiguided waveguide" was invented by Evgeny Zibik (Zurich, Switzerland), Antoine Pissis (Zurich, Switzerland) and Stefano Tirelli (Zurich, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vertical cavity surface emitting laser (VCSEL) device comprising a VCSEL emitter having a waveguide with a guided portion and an antiguided portion is disclosed. The guided and antiguided portions may select and confine a mode of the VCSEL emitter. The antiguided portion may also be used to coherently couple ...