ALEXANDRIA, Va., June 6 -- United States Patent no. 12,282,192, issued on April 22, was assigned to Commissariat a l'Energie Atomique et aux Energies Alternatives (Paris).

"Method for fabricating a photonic chip" was invented by Leopold Virot (Grenoble, France), Jean-Michel Hartmann (Grenoble, France), Karim Hassan (Grenoble, France), Bertrand Szelag (Grenoble, France) and Quentin Wilmart (Grenoble, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The fabrication of a first waveguide made of stoichiometric silicon nitride, of a second waveguide made of crystalline semiconductor material and of at least one active component optically coupled to the first waveguide via the second waveguide. The method inc...