Stimulated Brillouin scattering using short probe pulses: An unsuspected transient response with advantageous consequences in distributed sensing at high spatial resolution

Lecoeuche, V. and Webb, David J. and Pannell, Christopher N. and Jackson, David A. (2000) Stimulated Brillouin scattering using short probe pulses: An unsuspected transient response with advantageous consequences in distributed sensing at high spatial resolution. Proceedings of The Society of Photo-optical Instrumentation Engineers (SPIE), 4087 . pp. 1163-1166. ISSN 0277-786X. (The full text of this publication is not available from this repository)

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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 of this effect.

Item Type: Article
Additional information: Conference Information: 4th International Conference on Applications of Photonic Technology (ICAPT 2000) QUEBEC CITY, CANADA, JUN 12-16, 2000 Proceedings Paper
Subjects: Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: O.O. Odanye
Date Deposited: 17 Apr 2009 13:58
Last Modified: 23 May 2014 11:18
Resource URI: http://kar.kent.ac.uk/id/eprint/16302 (The current URI for this page, for reference purposes)
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