ALEXANDRIA, Va., May 12 -- United States Patent no. 12,625,329, issued on May 12, was assigned to FUJITSU OPTICAL COMPONENTS Ltd. (Kawasaki, Japan).
"Optical device, optical module, and optical transmission and reception apparatus" was invented by Hirohiko Sonoda (Sapporo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device has a waveguide circuit, a transmitter that transmits transmitted light to the waveguide circuit, and a receiver that receives received light from the waveguide circuit. The waveguide circuit has an optical waveguide, a wavelength combiner and splitter, and a mode filter. The optical waveguide includes a first port where the transmitted light output from the transmitter...