Optical fiber cable
US9989388B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 15, 2014 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Oct 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4415
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the present invention provide a cable for optical fiber sensing applications formed from fiber wound around a cable core. A protective layer is then preferably placed over the top of the wound fiber, to protect the fiber, and to help keep it in place on the cable core. The cable core is preferably of a diameter to allow bend-insensitive fiber to be wound thereon with low bending losses. The effect of winding the fiber onto the cable core means that the longitudinal sensing resolution of the resulting cable is higher than simple straight fiber, when the cable is used with an optical fiber sensing system such as a DAS or DTS system. The achieved resolution for the resulting cable is a function of the fiber winding diameter and pitch, with a larger diameter and reduced winding pitch giving a higher longitudinal sensing resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.