ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,526, issued on Nov. 18, was assigned to Ciena Corp. (Hanover, Md.).

"Managing photonic integrated circuit optical coupling" was invented by Jean-Philippe Berube (Saint-Augustin, Canada) and Marie-Josee Picard (L'Ancienne-Lorette, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for coupling an external optical interface to a first optical interface of a photonic integrated circuit comprises: a substrate comprising an optically transmissive material; and a first optical waveguide core formed in proximity to a first surface of the substrate. The first optical waveguide core comprises: a first portion comprising the external optical i...