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Proceedings Paper

Differential chirped-pulse pair for sub-meter spatial resolution Brillouin distributed fiber sensing
Author(s): Sébastien Le Floch; Zhisheng Yang; Florian Sauser; Marcelo Soto; Luc Thévenaz
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Paper Abstract

A distributed fiber sensor based on a differential chirped-pulse pair Brillouin optical time domain analysis (DCPBOTDA) is proposed for sub-meter spatial resolution sensing. The technique is based on the subtraction of two measurements made with the same pump pulse widths, but differing in the final short section of the pulse by a positive or negative frequency chirp, respectively. Experimental results are compared with a precise theoretical modeling, validating the sub-meter sensing capabilities of the technique.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96341D (28 September 2015); doi: 10.1117/12.2194705
Show Author Affiliations
Sébastien Le Floch, Haute Ecole Arc (Switzerland)
Zhisheng Yang, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Florian Sauser, Haute Ecole Arc (Switzerland)
Marcelo Soto, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Luc Thévenaz, Ecole 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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