ALEXANDRIA, Va., March 24 -- United States Patent no. 12,586,982, issued on March 24, was assigned to FUJITSU OPTICAL COMPONENTS Ltd. (Kawasaki, Japan).
"Wavelength tunable laser device" was invented by Hirotomo Izumi (Kawasaki, Japan), Suguru Akiyama (Kawasaki, Japan), Ayahito Uetake (Atsugi, Japan) and Seimi Sasaki (Sagamihara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wavelength tunable laser device includes: a first mirror; a second mirror; an optical amplifier provided between the first mirror and the second mirror; a wavelength tunable filter provided between the first mirror and the second mirror; and an optical waveguide coupling the optical amplifier and the wavelength tunable filter. T...