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Proceedings Paper

Brillouin distributed fibre sensing using phase modulated probe
Author(s): Xin Lu; Marcelo A. Soto; Miguel Gonzalez Herraez; Luc Thévenaz
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Paper Abstract

A novel configuration for a Brillouin distributed sensor using a phase modulated probe is presented. It offers the combined advantages of a direct implementation using simple devices and a large immunity to noise, shifting the information from the baseband to a higher frequency, which substantially strengthens the robustness to perturbations, interferences and other optical coherent noises. It naturally facilitates the possibility to perform frequency-coding on the probe to realise dynamic and fast measurements, since all frequency tunings are realised at sub-GHz frequencies.

Paper Details

Date Published: 20 May 2013
PDF: 4 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87943P (20 May 2013); doi: 10.1117/12.2026792
Show Author Affiliations
Xin Lu, École Polytechnique Fédérale de Lausanne (Switzerland)
Marcelo A. Soto, École Polytechnique Fédérale de Lausanne (Switzerland)
Miguel Gonzalez Herraez, Univ. de Alcalá (Spain)
Luc Thévenaz, École Polytechnique Fédérale de Lausanne (Switzerland)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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