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Proceedings Paper

Intensifying Brillouin distributed fibre sensors using image processing
Author(s): Marcelo A. Soto; Jaime A. Ramírez; Luc Thévenaz
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Paper Abstract

Image processing is proposed to enhance the performance of Brillouin distributed fibre sensors. The technique exploits the two-dimensional nature of the measurements, so that each frequency-position pair is assimilated to a pixel of a noisy image. Based on the level of redundancy existing in the two-dimensional information, the method offers unmatched denoising capabilities when compared to classic unidimensional denoising methods, even if those ones are consecutively used in distance and frequency domains. With no modification of the basic configuration, up to ~14 dB SNR improvement is experimentally demonstrated with unobservable loss of spatial resolution. A figure-of-merit of 115’000 is verified.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96342D (28 September 2015); doi: 10.1117/12.2205310
Show Author Affiliations
Marcelo A. Soto, Swiss Federal Institute of Technology (Switzerland)
Jaime A. Ramírez, Swiss Federal Institute of Technology (Switzerland)
Luc Thévenaz, Swiss Federal Institute of Technology (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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