Optical fibers for simultaneous measurement of temperature and strain
US10401563B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2018 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Sep 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/322
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein is an optical fiber comprising a plurality of dopant concentration profiles in a core of the optical fiber; where the first dopant concentration and the second dopant concentration are each varied in a stepwise manner and wherein a ratio of the first dopant concentration to the second dopant concentration is operative to result in an interaction of a fundamental optical mode at a given wavelength with a plurality of acoustic modes thereby increasing a ratio of Brillouin Scattering intensity ratio of secondary, tertiary or quarternary peak relative to a Brillouin Scattering intensity of a primary peak to be greater than 0.4 in a Brillouin Scattering spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.