Scientific Papers


Spatial resolution enhancement in pre-activated BOTDA schemes by numerical processing

Authors (PARTNER)

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

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

IEEE Photonics Technology Letters, vol. 24, no. 12, pp. 1003-1005, June 2012.

DOI: 10.1109/LPT.2012.2192424


A novel processing algorithm is demonstrated for time-domain high-resolution Brillouin schemes based on acoustic field preactivation. An iterative method is employed to correct the measured data from spurious effects associated with acoustic wave transients. Based on a model of the stimulated Brillouin scattering in the frequency domain, the spatial resolution degrading features are computed and subtracted from the acquired data. Experimental tests with 20-cm spatial resolution and dark-pulse pumping are reported.


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