US Patent Issued to SUMITOMO ELECTRIC INDUSTRIES on Sept. 1 for "Optical modulator and method of manufacturing an optical modulator" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,724,317, issued on Sept. 1, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).

"Optical modulator and method of manufacturing an optical modulator" was invented by Hajime Tanaka (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical modulator includes a first Mach-Zehnder modulation portion including a first waveguide and a second waveguide, a second Mach-Zehnder modulation portion including a third waveguide and a fourth waveguide, a third Mach-Zehnder modulation portion optically coupled to the first Mach-Zehnder modulation portion and the second Mach-Zehnder modulation portion. The third Mach-Zehnder modulation portion...