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Proceedings Paper

Sources of noise in Brillouin optical time-domain analyzers
Author(s): Javier Urricelqui; Marcelo A. Soto; Luc Thévenaz
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Paper Abstract

This paper presents a thorough study of the different sources of noise affecting Brillouin optical time-domain analyzers (BOTDA), providing a deep insight into the understanding of the fundamental limitations of this kind of sensors. Analytical and experimental results indicate that the noise source ultimately fixing the sensor performance depends basically on the fiber length and the input pump-probe powers. Thus, while the phase-to-intensity noise conversion induced by stimulated Brillouin scattering can have a dominating effect at short distances, a combination of sources determines the noise in longrange sensing, basically dominated by probe double Rayleigh scattering.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963434 (28 September 2015); doi: 10.1117/12.2195298
Show Author Affiliations
Javier Urricelqui, École Polytechnique Fédérale de Lausanne (Switzerland)
Univ. Pública de Navarra (Spain)
Marcelo A. Soto, École Polytechnique Fédérale de Lausanne (Switzerland)
Luc Thévenaz, École Polytechnique Fédérale de Lausanne (Switzerland)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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