US Patent Issued to NTT on Aug. 4 for "Optical fiber sensing device and method" (Japanese Inventor)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,987, issued on Aug. 4, was assigned to NTT Inc. (Tokyo).

"Optical fiber sensing device and method" was invented by Shingo Ono (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical fiber sensing device of the present disclosure includes: an optical fiber sensor system including a plurality of sensor units having different propagation delay times; a first light source for outputting an incident light to the optical fiber sensor system; a second light source for outputting a local light for combining with a transmitted light through the optical fiber sensor system; and a signal processing unit for detecting a change in an optical f...