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Proceedings Paper

Stimulated Brillouin scattering using short probe pulses: an unsuspected transient response with advantageous consequences in distributed sensing at high spatial resolution
Author(s): V. Lecoeuche; David J. Webb; Christopher N. Pannell; David A. Jackson
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Paper Abstract

We perform numerical simulations on a model describing a Brillouin based temperature and strain sensor, testing its response when probed with relatively short pulses. Experimental results were recently published that showed a broadening of the Brillouin loss curve when the probe pulse duration is reduced, followed by a sudden and rather surprising reduction of the linewidth when the pulse duration gets shorter than the acoustic relaxation time. Our study reveals the processes responsible for this behavior. We give a clear physical insight into the problem, allowing us to define of the best experimental conditions required to take advantage ofthis effect.

Paper Details

Date Published: 15 December 2000
PDF: 4 pages
Proc. SPIE 4087, Applications of Photonic Technology 4, (15 December 2000); doi: 10.1117/12.406362
Show Author Affiliations
V. Lecoeuche, Univ. of Kent (United Kingdom)
David J. Webb, Univ. of Kent (United Kingdom)
Christopher N. Pannell, Univ. of Kent (United Kingdom)
David A. Jackson, Univ. of Kent (United Kingdom)

Published in SPIE Proceedings Vol. 4087:
Applications of Photonic Technology 4
Roger A. Lessard; George A. Lampropoulos, Editor(s)

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