Packaged optical sensors on the side of optical fibers
US7209605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2003 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Feb 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/6484
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention concerns an optical sensor located on a preferred azimuthal portion of the side of an optical fiber. An optical fiber having two opposite ends, a core and a cladding and at least one sensing area is disclosed. Each of the sensing areas is located between the two opposite ends and each has a longitudinal, a radial and an azimuthal portion of the fiber that has been removed and replaced by a sensing material. The sensing collected light is thus representative of a parameter to be measured, such as temperature. Placing the sensing material in a lateral side portion of the fiber increases the sensitivity of the sensor, particularly when it comes to contact temperature measurement in vivo.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.