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Proceedings Paper

Fractal dimension of turbulent laser beam wandering
Author(s): Dario G. Perez; Luciano Zunino; Mario Garavaglia
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Paper Abstract

We analyze the fractal (box-counting) dimension of laser beam wandering. The wandering is due to the light travelling across a path filled by laboratory generated turbulence. The laser's centroid position is collected by a continuous position detector -- "light-tracker." We determine the box-counting dimension by means of two independent algorithms. The first method calculates the Hurst exponent of each axis, within the fractional Brownian model, and then the fractal dimension is determined applying a theoretical result. For the second one a new algorithm is proposed to estimate it directly. These results are compared.

Paper Details

Date Published: 21 October 2004
PDF: 5 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.590652
Show Author Affiliations
Dario G. Perez, CIOp (Argentina)
Univ. Nacional de La Plata (Argentina)
Luciano Zunino, CIOp (Argentina)
Univ. Nacional de La Plata (Argentina)
Mario Garavaglia, CIOp (Argentina)
Univ. Nacional de La Plata (Argentina)


Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications
Aristides Marcano O.; Jose Luis Paz, Editor(s)

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