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

Lecoeuche, V. and Webb, David J. and Pannell, Christopher N. and 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. (The full text of this publication is not available from this repository)

The full text of this publication is not available from this repository. (Contact us about this Publication)

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
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Optics
Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: O.O. Odanye
Date Deposited: 02 Apr 2009 12:37
Last Modified: 23 May 2014 11:14
Resource URI: http://kar.kent.ac.uk/id/eprint/16304 (The current URI for this page, for reference purposes)
  • Depositors only (login required):