The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2026
Filed:
Jan. 17, 2024
Optoskand Ab, Mölndal, SE;
Fredrik Johansson, Gothenburg, SE;
Christian Rydberg, Gråbo, SE;
Olof Sallhammar, Nödinge, SE;
Mats Blomqvist, Sävedalen, SE;
Optoskand AB, Mölndal, SE;
Abstract
A fiber-optic cable includes an optical fiber that transports a forward-propagating laser beam. The optical fiber includes a core, a cladding, and an output end-face emitting the forward-propagating beam. The fiber-optic cable also includes a mode-stripper, along a segment of the optical fiber, that couples out backward-propagating radiation that has been coupled into the cladding at the output end-face. The fiber-optic cable further includes a waveguide having a waveguide body with a bore containing at least part of the segment of the optical fiber. The bore is defined by an inward-facing surface that guides at least a fraction of the backward-propagating radiation, coupled out of the cladding by the mode-stripper, toward a rear opening of the bore farthest from the output end-face. Additionally, the fiber-optic cable includes one or more sensors or fiber ports that receive portions of the backward-propagating radiation emerging from the rear opening.