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. In: Lessard, R.A. and Lampropoulos, G.A., eds. Applications of Photonic Technology 4. Proceedings of SPIE . SPIE, pp. 1163-1166. ISBN 0-8194-3730-1. (doi:10.1117/12.406362) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:16302)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL: http://dx.doi.org/10.1117/12.406362

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:	Book section
DOI/Identification number:	10.1117/12.406362
Additional information:	Conference Information: 4th International Conference on Applications of Photonic Technology (ICAPT 2000) QUEBEC CITY, CANADA, JUN 12-16, 2000 Proceedings Paper
Uncontrolled keywords:	acoustics; spatial resolution; scattering; silicon; chlorine; numerical simulation; phonons
Subjects:	Q Science > QC Physics
Divisions:	Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User:	O.O. Odanye
Date Deposited:	17 Apr 2009 13:58 UTC
Last Modified:	16 Nov 2021 09:54 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/16302 (The current URI for this page, for reference purposes)

University of Kent Author Information

Webb, David J..

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Pannell, Christopher N..

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Jackson, David A..

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