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) (KAR id:16304)
| 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/10.1364/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 |
| Institutional Unit: | Schools > School of Engineering, Mathematics and Physics > Physics and Astronomy |
| Former Institutional Unit: |
Divisions > Division of Natural Sciences > Physics and Astronomy
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| Depositing User: | O.O. Odanye |
| Date Deposited: | 02 Apr 2009 12:37 UTC |
| Last Modified: | 20 May 2025 09:31 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/16304 (The current URI for this page, for reference purposes) |
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