Optical device utilizing fiber bragg grating and narrowband light with non-bragg wavelength
US9329089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2015 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Mar 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0208
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In certain embodiments, an optical device and a method of use is provided. The optical device includes a fiber Bragg grating having a substantially periodic refractive index modulation along a length of the fiber Bragg grating. The fiber Bragg grating has a power transmission spectrum with a plurality of local transmission minima, wherein each pair of neighboring local transmission minima has a local transmission maximum therebetween. The local transmission maximum has a maximum power at a transmission peak wavelength. The optical device further includes a narrowband optical source in optical communication with a first optical path and a second optical path. The narrowband optical source is configured to generate light having a wavelength at or in the vicinity of a local transmission maximum or at or in the vicinity of a wavelength at which the power transmission spectrum has a maximum slope between a local transmission maximum and either one of two local transmission minima neighboring the local transmission maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.