US Patent Issued to Taper light on March 17 for "Active optical fiber with variable cross-section area, method of production the same (variants) and an optical signal amplifier based on it" (Russian Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,358, issued on March 17, was assigned to Taper light (Moscow).

"Active optical fiber with variable cross-section area, method of production the same (variants) and an optical signal amplifier based on it" was invented by Mikhail Evgenievich Likhachev (Krasnogorsk, Russia) and Konstantin Konstantinovich Bobkov (Moscow).

According to the abstract* released by the U.S. Patent & Trademark Office: "The active optical fiber comprises an active core doped with at least one the active element and at least two reflective claddings; the cross-sectional area of the core and the cross-sectional area of the reflective cladding adjacent to the core continuously change along the length of the ...