ALEXANDRIA, Va., July 9 -- United States Patent no. 12,355,213, issued on July 8, was assigned to The Regents of the University of California (Oakland, Calif.).

"Quantum dot lasers and methods for making the same" was invented by John E. Bowers (Santa Barbara, Calif.), Arthur Gossard (Santa Barbara, Calif.), Daehwan Jung (Goleta, Calif.), Kunal Mukherjee (Goleta, Calif.), Justin Norman (Goleta, Calif.) and Jennifer Selvidge (Goleta, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A quantum dot (QD) laser comprises a semiconductor substrate and an active region epitaxially deposited on the semi-conductor substrate. The active region includes a plurality of barrier layers and a plurality of QD layers int...