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Proceedings Paper

Angle-of-arrival variance behavior and scale filtering in indoor turbulence
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Paper Abstract

We analyze the angle-of-arrival variance of an expanded and collimated laser beam after it has traveled through indoor convective turbulence. A continuous position detector is set at the focus of a lens collecting the light coming from this collimated laser beam. The effect of the different turbulent scales, above the inner scale, is studied changing the diameter of a circular pupil before the lens. The experimental setup follows the design introduced by Masciadri and Vernin (Appl. Opt., Vol. 36, N° 6, pp. 1320-1327, February 2004). Tilt data measurements are studied within the fractional Brownian motion model for the turbulent wave-front phase. In a previous paper the turbulent wave-front phase was modeled by using this stochastic process (J. Opt. Soc. Am. A, Vol. 21, N° 10, pp. 1962-1969, October 2004). The Hurst exponents associated to the different degree of turbulence are obtained from the new D2H-2 dependence.

Paper Details

Date Published: 1 November 2006
PDF: 7 pages
Proc. SPIE 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 65220L (1 November 2006); doi: 10.1117/12.723049
Show Author Affiliations
Damián Gulich, Ctr. de Investigaciones Ópticas (Argentina)
Univ. Nacional de La Plata (Argentina)
Gustavo Funes, Ctr. de Investigaciones Ópticas (Argentina)
Univ. Nacional de La Plata (Argentina)
Luciano Zunino, Ctr. de Investigaciones Ópticas (Argentina)
Univ. Nacional de La Plata (Argentina)
Darío G. Pérez, Pontificia Univ. Católica de Valparaíso (Chile)
Mario Garavaglia, Ctr. de Investigaciones Ópticas (Argentina)
Univ. Nacional de La Plata (Argentina)


Published in SPIE Proceedings Vol. 6522:
Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics

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