Optical fiber long period sensor having a reactive coating
US5864641A · kind A · utility
124Cited by
16References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1997 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Apr 11, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02195
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical sensor is provided. The optical sensor comprises an optical waveguide, at least one long period grating disposed within the optical waveguide and a reactive coating positioned in an operable relationship to the long period grating wherein the reactive coating causes the long period grating to produce a wavelength transmission spectrum functionally dependent on a parameter sensed. Such sensors may be used to measure physical, electrical and chemical parameters within a single system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.