ALEXANDRIA, Va., March 24 -- United States Patent no. 12,586,987, issued on March 24, was assigned to The Government of the United States of America, as represented by the Secretary of the Navy (Arlington, Va.).

"Weak index guiding of interband cascade lasers" was invented by Jerry R. Meyer (Catonsville, Md.), Alexander Spott (Santa Barbara, Calif.), Chul Soo Kim (West Springfield, Va.), Mijin Kim (West Springfield, Va.), Chadwick L. Canedy (Washington), Charles D. Merritt (Fairfax, Va.), William W. Bewley (Falls Church, Va.) and Igor Vurgaftman (Severna Park, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Semiconductor laser architectures that provide weak index guiding of interband cascade lasers (ICLs...