Slope-assisted BOTDA based on vector SBS and frequency-agile technique for wide-strain-range dynamic measurements.


We present a slope-assisted BOTDA system based on the vector stimulated Brillouin scattering (SBS) and frequency-agile technique (FAT) for the wide-strain-range dynamic measurement. A dimensionless coefficient K defined as the ratio of Brillouin phase-shift to gain is employed to demodulate the strain of the fiber, and it is immune to the power fluctuation… (More)
DOI: 10.1364/OE.25.001889

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