150km range distributed temperature sensor based on coherent detection of spontaneous Brillouin backscatter and in line Raman amplification
Alahbabi, Mohamed N., Cho, Yuh T. and Newson, Trevor P. (2005) 150km range distributed temperature sensor based on coherent detection of spontaneous Brillouin backscatter and in line Raman amplification. Journal of the Optical Society of America B, 22, (6), 1321-1324. (doi:10.1364/JOSAB.22.001321)
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Official URL: http://dx.doi.org/10.1364/JOSAB.22.001321
Description/Abstract
We report an extended range distributed temperature sensor based on coherent detection of the frequency shift of the spontaneous Brillouin backscatter combined with Raman amplification. The Raman amplification was achieved within the sensing fibre using either co- or counter-propagating Raman pump with respect to the probe pulse and experiments were conducted to investigate the optimum pump and probe power combination. With a co-propagating Raman pump a temperature resolution of 0.8C was achieved at a sensing range of 150km with 50m spatial resolution.
| Item Type: | Article |
|---|---|
| ISSN: | 0740-3224 (print) |
| Uncontrolled Keywords: | fiber optics, optical communications, fiber optics sensors, instrumentation, measurement, metrology, temperature, nonlinear optics, Raman effect, backscattering, Brillouin scattering, Raman scattering |
| Related URLs: | http://dx.doi.org/10.1364/JOSA....22.001321 |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| ePrint ID: | 21013 |
| URI: | http://eprints.soton.ac.uk/id/eprint/21013 |
| Deposited On: | 07 Mar 2006 |
| Last Modified: | 02 Mar 2012 11:45 |
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