An all-fiber system for simultaneous interrogation of distributed strain and temperature sensing using spontaneous Brillouin scattering
Kee, H.H., Lees, G.P. and Newson, T.P. (2000) An all-fiber system for simultaneous interrogation of distributed strain and temperature sensing using spontaneous Brillouin scattering. Optics Letters, 25, (10), 695-697.
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Official URL: http://ol.osa.org/abstract.cfm?id=485
Description/Abstract
We demonstrate a low-loss, long-range, single-ended distributed optical fiber sensor to measure both temperature and strain simultaneously and unambiguously. By using the Landau Placzek ratio and cascaded Mach Zehnder interferometric filters, we measure both the intensity and the frequency changes in the Brillouin backscattered signal. Strain and temperature measurements can then be independently resolved. A temperature resolution of 4C, a strain resolution of 290 m e , and a spatial resolution of 10m have been achieved for a sensing length of 15km.
| Item Type: | Article |
|---|---|
| Related URLs: | http://ol.osa.org/abstract.cfm?id=485 |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| ePrint ID: | 13631 |
| Deposited On: | 31 Dec 2004 |
| Last Modified: | 26 Mar 2010 17:19 |
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