ALEXANDRIA, Va., March 26 -- United States Patent no. 12,261,412, issued on March 25, was assigned to Lumentum Japan Inc. (Kanagawa, Japan).
"Electro-absorption modulator" was invented by Hideaki Asakura (Kanagawa, Japan), Atsushi Nakamura (Nagano, Japan), Hayato Takita (Kanagawa, Japan) and Shunya Yamauchi (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an electro-absorption modulator that includes a substrate, a mesa structure, a first conductivity type electrode, and a second conductivity type electrode. The first conductivity type electrode includes a mesa-top electrode, a pad electrode, and a lead-out wire electrode. The mesa structure has a light input end, to which light is...