ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,297, issued on March 3, was assigned to X Development LLC (Mountain View, Calif.).

"2X2 photonic splitter using mode converting Y-junctions" was invented by Alfred Ka Chun Cheung (Belmont, Calif.) and Yi-Kuei Ryan Wu (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A 2x2 photonic splitter includes two mode converting Y-junctions. A first stage mode converting Y-junction includes input branch ports adapted to receive an input optical signal propagating in a fundamental spatial mode at either of the input branch ports, a first trunk port, and a first mode converting region. The first mode converting region is adapted to convert at leas...