Lecoeuche, V., Webb, David J., Pannell, C.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.
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.
Publication DOI: | https://doi.org/10.1364/OL.25.000156 |
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Divisions: | College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT) |
Additional Information: | © 2000 Optical Society of America |
Uncontrolled Keywords: | Brillouin-based temperature,strain sensor,short pulses,linewidth,pulse duration,acoustic relaxation time |
Publication ISSN: | 1539-4794 |
Last Modified: | 07 Oct 2024 07:13 |
Date Deposited: | 12 May 2011 09:54 |
Full Text Link: | |
Related URLs: |
http://www.opti ... URI=ol-25-3-156
(Publisher URL) |
PURE Output Type: | Article |
Published Date: | 2000-02-01 |
Authors: |
Lecoeuche, V.
Webb, David J. ( 0000-0002-5495-1296) Pannell, C.N. Jackson, David A. |