We propose and experimentally demonstrate a scheme for accelerated fast BOTDA. The effect of signal-to-noise ratio (SNR) on recovery performance compressed sensing is simulated analyzed, it found that reduction in SNR requires much larger frequency data to recover the original Brillouin gain spectrum (BGS). To enable high probability, Block-Matching 3D filtering (BM3D) algorithm employed enhanc...

A fundamental limitation in high-resolution and long-range Brillouin optical timedomain systems is overcome in this paper, enabling 500k resolved points over 25 km of SMF with 5 cm spatial resolution in a usual acquisition time. OCIS codes: (060.2370) Fiber optics sensors; (290.5900) Scattering, stimulated Brillouin; (060.4370) Nonlinear optics, fibers.

We report a Brillouin-based fully distributed and dynamic monitoring of the strain induced by a propagating mechanical wave along a 20 m long composite strip, to which surface a single-mode optical fiber was glued. Employing a simplified version of the Slope-Assisted Brillouin Optical Time Domain Analysis (SA-BOTDA) technique, the whole length of the strip was interrogated every 10 ms (strip sa...