Stimulated Brillouin scattering using short probe pulses: an unsuspected transient response with advantageous consequences in distributed sensing at high spatial resolution

V. Lecoeuche; David J. Webb; Christopher N. Pannell; David A. Jackson

doi:10.1117/12.406362

15 December 2000 Stimulated Brillouin scattering using short probe pulses: an unsuspected transient response with advantageous consequences in distributed sensing at high spatial resolution

V. Lecoeuche, David J. Webb, Christopher N. Pannell, David A. Jackson

Author Affiliations +

Proceedings Volume 4087, Applications of Photonic Technology 4; (2000) https://doi.org/10.1117/12.406362
Event: 2000 International Conference on Application of Photonic Technology (ICAPT 2000), 2000, Quebec City, Canada

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 ofthis effect.

Citation Download Citation

V. Lecoeuche, David J. Webb, Christopher N. Pannell, and David A. Jackson "Stimulated Brillouin scattering using short probe pulses: an unsuspected transient response with advantageous consequences in distributed sensing at high spatial resolution", Proc. SPIE 4087, Applications of Photonic Technology 4, (15 December 2000); https://doi.org/10.1117/12.406362

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