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Proceedings Article

General analytical model for distributed Brillouin sensors with sub-meter spatial resolution

[+] Author Affiliations
Luc Thevenaz, Jean-Charles Beugnot

Ecole Polytechnique Fédérale de Lausanne (Switzerland)

Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75036A (October 05, 2009); doi:10.1117/12.835475
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From Conference Volume 7503

  • 20th International Conference on Optical Fibre Sensors
  • Julian D. C. Jones
  • Edinburgh, United Kingdom | October 05, 2009

abstract

A general analytic solution for Brillouin distributed fibre sensors with sub-meter spatial resolution has been obtained by solving the coupled wave equation by a perturbation method. The effect of the interaction of a square pump pulse with a continuous signal is described in full generality for all possible pumping schemes and for any detuning with the resonance condition of the Brillouin interaction. The model predicts how the acoustic wave, the signal amplitude and the gain spectral profile depend upon the pumping scheme. The analytical solution is an unprecedented tool to optimize the sensor configuration by determining the optimum pumping scheme.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Topics

Sensors
Citation

Luc Thevenaz and Jean-Charles Beugnot
"General analytical model for distributed Brillouin sensors with sub-meter spatial resolution", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75036A (October 05, 2009); doi:10.1117/12.835475; http://dx.doi.org/10.1117/12.835475


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