Scientific Papers

Title

Distributed sensing at cm-scale spatial resolution by BOFDA: measurements and signal processing

Authors (PARTNER)

R. Bernini, A. Minardo and L. Zeni (SUN)

Name and/or number of magazine/newspaper/journal…

EEE Photonics Journal, vol. 4, no. 1, pp. 48-56, February 2012.

DOI: 10.1109/JPHOT.2011.2179024

Abstract

In this work we demonstrate high spatial (» 3 cm) and spectral (» 30 MHz) resolution Brillouin sensing by use of Brillouin Optical Frequency-Domain analysis (BOFDA) and signal processing. An iterative method is employed to correct the acquired data from spurious effects associated to acoustic wave modulation and relevant in the high spatial resolution regime. Experimental tests demonstrate that the proposed algorithm allows to reconstruct the Brillouin shift profile with the full spatial resolution allowed by the system bandwidth.


 

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