Slow-light fiber Bragg grating sensor
US8797540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Sep 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29353
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In certain embodiments, an optical device and a method of use is provided. The optical device can include a fiber Bragg grating and a narrowband optical source. The narrowband optical source can be configured to generate light. A first portion of light can be transmitted along a first optical path extending along and through the length of the fiber Bragg grating at a group velocity. The light can have a wavelength at or in the vicinity of a wavelength at which one or more of the following quantities is at a maximum value: (a) the product of the group index spectrum and a square root of the power transmission spectrum, (b) the slope of a product of the group index spectrum and one minus the power transmission spectrum, and (c) the slope of a product of the group index spectrum and the power transmission spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.