ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,589, issued on Oct. 21, was assigned to Sumitomo Electric Industries Ltd. (Osaka, Japan).
"Multicore optical fiber" was invented by Takemi Hasegawa (Osaka, Japan), Takahiro Suganuma (Osaka, Japan) and Hirotaka Sakuma (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multicore optical fiber of an embodiment has a structure for simultaneously realizing low transmission loss, low fusion splicing loss, and low inter-core crosstalk. The multicore optical fiber includes a plurality of cores comprised of silica glass, a common cladding comprised of silica glass and surrounding the plurality of cores, and a resin coating surrounding the common ...