ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,391, issued on Jan. 20, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Semiconductor optical integrated element" was invented by Yusuke Azuma (Tokyo) and Yoshimichi Morita (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor optical integrated element of the present disclosure includes: a laser diode portion which is provided on one end side above a substrate, has a first optical waveguide, and emits a laser beam; a modulator portion which is provided on another end side, has a second optical waveguide, and modulates the laser beam; a separation region provided between the laser diode portion and the modulator portion; and a pa...