Reconstruction technique for stimulated Brillouin scattering distributed fiber-optic sensors

Romeo Bernini; Aldo Minardo; Luigi Zeni

doi:10.1117/1.1497176

1 September 2002 Reconstruction technique for stimulated Brillouin scattering distributed fiber-optic sensors

Romeo Bernini, Aldo Minardo, Luigi Zeni

Optical Engineering, Vol. 41, Issue 9, (September 2002). https://doi.org/10.1117/1.1497176

A novel numerical technique for temperature/strain profiles reconstruction based on Brillouin optical-fiber time-domain analysis (BOTDA) sensors is proposed. In this approach, we search directly for the temperature/strain profile along the fiber that matches the measured data. The algorithm is based on a harmonic expansion of the unknown profile, whose coefficients are determined by a multidimensional minimization. Several numerical simulations, even in presence of noise, prove the capability of the proposed algorithm to compensate for some systematic errors suffered by classical approaches based on the direct reading of Brillouin power spectra.

©(2002) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Romeo Bernini, Aldo Minardo, and Luigi Zeni "Reconstruction technique for stimulated Brillouin scattering distributed fiber-optic sensors," Optical Engineering 41(9), (1 September 2002). https://doi.org/10.1117/1.1497176

Published: 1 September 2002

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