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Proceedings Paper

Distributed fiber optical sensors using Brillouin backscattering
Author(s): Dieter Garus; Katerina Krebber; Ralf Hereth
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Paper Abstract

Experimental and theoretical investigations demonstrate the possible performance of a distributed temperature sensor based on Brillouin optical time domain analysis. The Brillouin frequency, its thermal coefficient and the gain bandwidth were measured for several standard telecommunication fibers at 1.3 micrometers . Theoretical investigations show that especially for sensor fibers with lengths of several ten kilometers the powers of the pump and the stokes laser in a pump-probe configuration are very critical parmaters. The optimum power level and the resulting sensor performance are calculated for different fiber lengths. A possible sensor configuration is presented.

Paper Details

Date Published: 25 September 1995
PDF: 12 pages
Proc. SPIE 2510, Fiber Optic and Laser Sensors XIII, (25 September 1995); doi: 10.1117/12.221698
Show Author Affiliations
Dieter Garus, Ruhr-Univ. Bochum (Germany)
Katerina Krebber, Ruhr-Univ. Bochum (Germany)
Ralf Hereth, Ruhr-Univ. Bochum (Germany)


Published in SPIE Proceedings Vol. 2510:
Fiber Optic and Laser Sensors XIII
Ramon P. DePaula; John W. Berthold III, Editor(s)

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