ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,848, issued on Jan. 20, was assigned to FURUKAWA ELECTRIC Co. LTD. (Tokyo).
"Optical device and wavelength-tunable laser" was invented by Yosuke Terada (Tokyo) and Tatsuro Kurobe (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes: a multi-mode interference waveguide that includes a first end portion in a first direction and a second end portion in opposite direction to the first direction; a first port that is arranged in the first end portion; a second port that is arranged in the first end portion; a third port that is arranged in the second end portion and that is positioned at a center of the second end portion in t...