US Patent Issued to FUJITSU OPTICAL COMPONENTS on March 4 for "Optical device and optical communication apparatus" (Japanese Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,242,143, issued on March 4, was assigned to FUJITSU OPTICAL COMPONENTS Ltd. (Kawasaki, Japan).

"Optical device and optical communication apparatus" was invented by Yoshihiko Yoshida (Sapporo, Japan), Nobuaki Mitamura (Saitama, Japan), Shuntaro Makino (Kawasaki, Japan) and Yoshinobu Kubota (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes a silicon substrate, a waveguide formed of a thin film that is laminated on the silicon substrate and that is made of a perovskite oxide with a large electro-optic effect as compared to lithium niobate, and a cladding layer that covers the waveguide. Further, the optical device i...