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

Damián Gulich; Gustavo Funes; Luciano Zunino; Darío G. Pérez; Mario Garavaglia

doi:10.1117/12.723049

1 November 2006 Angle-of-arrival variance behavior and scale filtering in indoor turbulence

Damián Gulich, Gustavo Funes, Luciano Zunino, Darío G. Pérez, Mario Garavaglia

Proceedings Volume 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics; 65220L (2006) https://doi.org/10.1117/12.723049
Event: Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 2006, Tomsk, Russian Federation

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 D^2H-2 dependence.

Citation Download Citation

Damián Gulich, Gustavo Funes, Luciano Zunino, Darío G. Pérez, and Mario Garavaglia "Angle-of-arrival variance behavior and scale filtering in indoor turbulence", Proc. SPIE 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 65220L (1 November 2006); https://doi.org/10.1117/12.723049

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