TY - GEN
T1 - Angle-of-arrival variance behavior and scale filtering in indoor turbulence
AU - Gulich, Damián
AU - Funes, Gustavo
AU - Zunino, Luciano
AU - Pérez, Dario G.
AU - Garavaglia, Mario
PY - 2006
Y1 - 2006
N2 - 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, No 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,No 10, pp. 1962-1969, October 2004). The Hurst exponents associated to the different degree of turbulence are obtained from the new D2H-2 dependence.
AB - 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, No 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,No 10, pp. 1962-1969, October 2004). The Hurst exponents associated to the different degree of turbulence are obtained from the new D2H-2 dependence.
KW - Fractional brownian motion
KW - Hurst exponent
KW - Non-Kolmogorov turbulence
KW - Turbulent wave-front phase
UR - http://www.scopus.com/inward/record.url?scp=33846218306&partnerID=8YFLogxK
U2 - 10.1117/12.723049
DO - 10.1117/12.723049
M3 - Conference contribution
AN - SCOPUS:33846218306
SN - 0819466425
SN - 9780819466426
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics
T2 - Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics
Y2 - 2 July 2006 through 7 July 2006
ER -