Articulo
Characterization of laser propagation through turbulent media by quantifiers based on the wavelet transform
Registro en:
issn:0218-348X
issn:1793-6543
Autor
Zunino, Luciano José
Pérez, Darío Gabriel
Garavaglia, Mario José
Rosso, Osvaldo A.
Institución
Resumen
The propagation of a laser beam through turbulent media is modeled as a fractional Brownian motion (fBm). Time series corresponding to the center position of the laser spot (coordinates x and y) after traveling across air in turbulent motion, with different strength, are analyzed by the wavelet theory. Two quantifiers are calculated, the Hurst exponent, H, and the mean Normalized Total Wavelet Entropy, S<sub>WT</sub>. It is verified that both quantifiers give complementary information about the turbulence. Centro de Investigaciones Ópticas