ALEXANDRIA, Va., June 4 -- United States Patent no. 12,322,929, issued on June 3, was assigned to Beijing University of Technology (Beijing).

"High-power large-aperture fundamental mode vortex optical waveguide coherent VCSEL array" was invented by Jingjing Dai (Beijing), Jianjun Luo (Beijing), Zhiyong Wang (Beijing) and Wei Li (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A high-power large-aperture fundamental mode vortex optical waveguide coherent VCSEL array is provided, and the coherent VCSEL array is a large-aperture array light-emitting structure, including an N electrode layer, an N-type DBR, an active region, an P-type DBR and a P electrode layer; micro/nanostructures pores with hexagonal ...