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Optical Engineering

Reconstruction technique for stimulated Brillouin scattering distributed fiber-optic sensors
Author(s): Romeo Bernini; Aldo Minardo; Luigi Zeni
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Paper Abstract

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.

Paper Details

Date Published: 1 September 2002
PDF: 9 pages
Opt. Eng. 41(9) doi: 10.1117/1.1497176
Published in: Optical Engineering Volume 41, Issue 9
Show Author Affiliations
Romeo Bernini, Istituto per il Rilevamento Elettromagnetico per l'Ambiente (Italy)
Aldo Minardo, Seconda Univ. degli Studi di Napoli (Italy)
Luigi Zeni, Seconda Univ. degli Studi di Napoli (Italy)

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