Abstract
Results are reported from recent research on the use of the Brillouin gain/loss mechanism for distributed sensing. A theoretical model of the interaction of the pulsed and CW beams is described and compared with experiments. Results from a system with a 51 km sensing length are presented. We finally investigate issues related to the variation within the sensing fiber of the polarizations of the two beams.
| Original language | English |
|---|---|
| Pages (from-to) | 1340-1348 |
| Number of pages | 9 |
| Journal | Journal of Lightwave Technology |
| Volume | 13 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 1995 |
Keywords
- acoustic scattering
- acoustic waves
- Brillouin scattering
- frequency
- optical fiber polarization
- optical fibers
- optical scattering
- optical sensors
- raman scattering
- temperature sensors
- Brillouin spectra
- fibre optic sensors
- optical fibre losses
- optical fibre polarisation
- spectral methods of temperature measurement
- Brillouin gain
- Brillouin loss mechanism
- CW beams
- beam polarisation
- distributed sensing
- distributed temperature sensor
- pulsed beams
- sensing fiber
- sensing length