Methods and apparatus for determining shape parameter(s) using a sensing fiber having a single core with multiple light propagating modes
US11473941B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2021 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Feb 17, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0288
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Example embodiments include an optical interrogation system with a sensing fiber having a single core, the single core having multiple light propagating modes. Interferometric apparatus probes the single core multimode sensing fiber over a range of predetermined wavelengths and detects measurement interferometric data associated with the multiple light propagating modes of the single core for each predetermined wavelength in the range. Data processing circuitry processes the measurement interferometric data associated with the multiple light propagating modes of the single core to determine one or more shape-sensing parameters of the sensing fiber from which the shape of the fiber in three dimensions can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.