Title :
Differential Techniques for High-Resolution BOTDA: An Analytical Approach
Author :
Minardo, Aldo ; Bernini, Romeo ; Zeni, Luigi
Author_Institution :
Dipt. di Ing. dell´´Inf., Seconda Univ. di Napoli, Aversa, Italy
Abstract :
We derive an analytical solution for the differential gain in Brillouin optical time-domain analysis. The found solution gives insight into the mechanisms leading to the high-spatial and spectral resolution observed in differential schemes. An experimental test has been carried out to validate the analytical solution.
Keywords :
Brillouin spectra; fibre optic sensors; optical fibre dispersion; Brillouin optical time-domain analysis; Brillouin scattering; differential gain; differential technique; fiber optic sensor; high resolution BOTDA; Acoustics; Gain; Optical fibers; Optical pulses; Scattering; Spatial resolution; Brillouin scattering; distributed sensor; fiber-optic sensor;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2202223
