Novel optical fibre distributed temperature sensor based on the Landau-Placzek ratio
Lees, G.P., de Souza, K. and Newson, T.P. (1997) Novel optical fibre distributed temperature sensor based on the Landau-Placzek ratio. In, Proceedings of Conference on Lasers and Electro-Optics. Conference on Lasers and Electro-Optics (CLEO '97) Piscataway, United States, Institute of Electrical and Electronics Engineers.
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Description/Abstract
We report a compact, portable optical fiber distributed temperature sensor based on spontaneous Brillouin backscattered light. The ratio of the Rayleigh and Brillouin backscattered light is known as the Landau-Placzek ratio and gives a measure of temperature. To measure the Landau-Placzek ratio the Rayleigh and Brillouin signals that are separated by a frequency of approximately 10 GHz have to be spectrally resolved. A narrow linewidth Q-switched fiber laser and an inexpensive low loss in-fiber Mach-Zehnder interferometer were developed for this purpose
| Item Type: | Book Section |
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| Related URLs: | |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| Item ID: | 76786 |
| Date Deposited: | 11 Mar 2010 |
| Last Modified: | 01 Oct 2012 14:59 |
| Contributors: | Lees, G.P. (Author) de Souza, K. (Author) Newson, T.P. (Author) |
| Date: | 1997 |
| Status: | Published |
| Publisher: | Institute of Electrical and Electronics Engineers |
| URI: | http://eprints.soton.ac.uk/id/eprint/76786 |
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