ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,996, issued on Oct. 14, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).

"Scattering light-based monitor for photonic integrated circuit, monitoring system and monitoring method" was invented by Zhuojie Wu (Port Chester, N.Y.) and Yusheng Bian (Ballston Lake, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a photonic integrated circuit (PIC) structure including a scattering light-based monitor with photodetectors (e.g., PIN and/or avalanche photodiodes) placed adjacent to one or both sides of an end portion (i.e., a coupler) of a waveguide core at an optical interface with another optical device. The photodetectors are place...