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Transient response in high-resolution Brillouin-based distributed sensing using probe pulses shorter than the acoustic relaxation time

Lecoeuche, V., Webb, David J., Pannell, Christopher N., Jackson, David A. (2000) Transient response in high-resolution Brillouin-based distributed sensing using probe pulses shorter than the acoustic relaxation time. Optics Letters, 25 (3). pp. 156-158. ISSN 0146-9592. (doi:10.1364/OL.25.000156) (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)

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. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1364/OL.25.000156

Abstract

We perform numerical simulations on a model describing a Brillouin-based temperature and strain sensor, testing its response when it is probed with relatively short pulses. Experimental results were recently published [e.g., Opt. Lett. 24, 510 (1999)] 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 the best experimental conditions required for one to take the advantage of this effect.

Item Type: Article
DOI/Identification number: 10.1364/OL.25.000156
Subjects: Q Science
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Faculties > Sciences > School of Physical Sciences
Depositing User: O.O. Odanye
Date Deposited: 02 Apr 2009 12:37 UTC
Last Modified: 19 Jun 2019 09:48 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/16304 (The current URI for this page, for reference purposes)
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