Share Email Print
cover

Proceedings Paper

Atmospheric scintillation effect on adaptive optics correction
Author(s): Youkuan Li; Dongquan Chen; Xiangwan Du
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Scintillation is increased when laser propagates long distance near horizontally in atmospherics, which limits the ability of conventional adaptive optical system. A theoretical analysis is presented based on extend Huygens-Fresnel theory for Gaussian beam profile. Numerical simulations based on wave optics computer code are given for different atmospheric condition. For given Rytov variance different turbulence strength and propagating distance are considered. Various receiving and projecting apertures are also considered. Rytov variance and propagation Fresnel have more effect on Strehl ratio. The expressions of Strehl ratio versus Rytov variance are obtained from weak to strong scintillation. For given Rytov variance, Strehl ratio with Fresnel number is studied. Large aperture has benefit for correction. The results show that Strehl ratio increases with Fresnel number and saturates to the limit of ideal phase-only correction for given Rytov variance.

Paper Details

Date Published: 6 February 2004
PDF: 10 pages
Proc. SPIE 5237, Optics in Atmospheric Propagation and Adaptive Systems VI, (6 February 2004); doi: 10.1117/12.513213
Show Author Affiliations
Youkuan Li, Institute of Applied Physics and Computational Mathematics (China)
Dongquan Chen, Institute of Applied Physics and Computational Mathematics (China)
Xiangwan Du, Institute of Applied Physics and Computational Mathematics (China)


Published in SPIE Proceedings Vol. 5237:
Optics in Atmospheric Propagation and Adaptive Systems VI
John D. Gonglewski; Karin Stein, Editor(s)

© SPIE. Terms of Use
Back to Top