Abstract
We report on the design and implementation of a novel optical fiber system for dual point measurement of magnetic field strength and temperature. The system incorporates a polarization switching technique that enables ratiometric processing of the orthogonal circularly polarized reflections from low-birefringence fiber Bragg gratings. High-resolution magneto-optical measurement of either static or dynamic magnetic fields may be achieved while retaining the capability for serial multiplexing and temperature measurement. The system provides a practical solution to intrinsic fiber point measurement of magnetic field, leading to potential applications in adverse environmental conditions, where electronic or extrinsic optical technologies are unsuitable.
| Original language | English |
|---|---|
| Pages (from-to) | 1220-1226 |
| Number of pages | 7 |
| Journal | IEEE Sensors Journal |
| Volume | 11 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 9 Nov 2010 |
Keywords
- fibre Bragg gratings
- sensors
- polarisation
- magneto-optical effects
- optical fibre sensing