ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,282, issued on Sept. 9, was assigned to Ciena Corp. (Hanover, Md.).

"Managing monolithic integration of waveguides" was invented by Antoine Bois (Quebec, Canada), Raphael Beaupre-Laflamme (Quebec, Canada) and Charles Baudot (Quebec, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "An article comprises: one or more sets of lower index contrast layers, each comprising at least two materials having different indices of refraction, and configured to provide optical confinement based at least in part on a first numerical difference between the two indices of refraction; and one or more sets of higher index contrast layers, each comprising at least ...