US Patent Issued to NIPPON TELEGRAPH AND TELEPHONE on June 3 for "Several mode fiber test method and several mode fiber test device" (Japanese Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,725, issued on June 3, was assigned to NIPPON TELEGRAPH AND TELEPHONE Corp. (Tokyo).

"Several mode fiber test method and several mode fiber test device" was invented by Atsushi Nakamura (Musashino, Japan), Tomokazu Oda (Musashino, Japan), Daisuke Iida (Musashino, Japan) and Hiroyuki Oshida (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present disclosure is to provide a few-mode fiber testing method and a few-mode fiber testing device capable of acquiring a loss and inter-mode crosstalk for each mode at a connection point of a few-mode fiber by measurement only from one end of FUT. The few-mode fiber testing method ...