
Proceedings Paper
Analytical expression and experimental validation of the Brillouin gain spectral broadening at any sensing spatial resolutionFormat | Member Price | Non-Member Price |
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Paper Abstract
A novel and simple analytical expression to describe the Brillouin gain spectral broadening as a function of the spatial resolution in time-domain Brillouin distributed fiber sensors is deduced. The proposed model is experimentally validated using a pump-probe Brillouin sensing setup and also compared with numerical and approximate results. In addition, a compact mathematical form is presented for the peak gain reduction resulting from incomplete acoustic-wave activation in Brillouin sensors with short spatial resolution. Both mathematical expressions can be used together to quantitatively predict the impact of the spatial resolution on the signal-to-noise ratio and frequency uncertainty of the sensor.
Paper Details
Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239J (23 April 2017); doi: 10.1117/12.2267639
Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239J (23 April 2017); doi: 10.1117/12.2267639
Show Author Affiliations
Mehdi Alem, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Marcelo A. Soto, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Marcelo A. Soto, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Moshe Tur, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Tel Aviv Univ. (Israel)
Luc Thévenaz, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Tel Aviv Univ. (Israel)
Luc Thévenaz, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)
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