Brillouin scattering based sensor in high gamma dose environment: Design and optimization of optical fiber for long-term distributed measurement - Université Jean-Monnet-Saint-Étienne Access content directly
Conference Papers Proc. SPIE 8421 Year : 2012

Brillouin scattering based sensor in high gamma dose environment: Design and optimization of optical fiber for long-term distributed measurement

J. Bertrand
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Sébastien Girard
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Y. Ouerdane
S. Delepine-Lesoille
  • Function : Author
A. Boukenter

Abstract

Brillouin sensing is an interesting technology to monitor strain inside large civil engineering structures like nuclear waste repository. In radiative environments, performance degradation of Brillouin systems still needs to be investigated. In this paper, we fully characterized the Brillouin response of two different optical fibers, including the SMF28 fiber from Corning, under high gamma doses. Radiations increase the fiber linear attenuation and can also lead to a shift in the Brillouin frequency. We reduced these effects by designing a radiation resistant optical fiber. This fiber is well adapted for distributed sensing application using Brillouin scattering in MGy dose level environment.
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Dates and versions

ujm-00753016 , version 1 (16-11-2012)

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X. Phéron, J. Bertrand, Sébastien Girard, Y. Ouerdane, S. Delepine-Lesoille, et al.. Brillouin scattering based sensor in high gamma dose environment: Design and optimization of optical fiber for long-term distributed measurement. OFS 2012 : 22nd Optical Fiber Sensors Conference, Oct 2012, Beijing, China. pp.OFS12-OF100-492, ⟨10.1117/12.975225⟩. ⟨ujm-00753016⟩
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