ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,026, issued on Sept. 9, was assigned to Optasense Holdings Ltd. (Camberley, Great Britain).
"Fibre optic sensing" was invented by Roger Crickmore (Farnborough, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application relates to distributed fibre optic sensing. A sensor apparatus includes an interrogator for repeatedly interrogating a sensing optical fibre with interrogating optical radiation and detecting radiation which is Rayleigh backscattered from within the sensing fibre. In a first, polarisation sensing mode of operation, the interrogator is optically coupled to the sensing fibre via an optical system that includes a leng...