Share Email Print
cover

Proceedings Paper

Scintillation analysis for multiple uplink Gaussian beams in the presence of beam wander
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

For a beam from ground to space, the main optical turbulence effects are scintillation and beam wander. Multiple incoherent beams can reduce the scintillation. The scintillation is determined by the number of the beams, the beam separation and the size of the beam wander variance. A wave optics simulation was applied to study the scintillation index of 1-, 3, 6 collimated uplink Gaussian beams, where a hexagonal close-pack spacing is used. Based on the results of simulations, we propose an approximation to average spatial correlation in terms of the beam separation in the tracked and untracked cases. The relation between scintillation index and beam separation is different in the weak and moderately-strong fluctuation regimes when the number of beams is the same. And the average spatial correlation is determined by the beam waist radius, beam separation and beam wander variance.

Paper Details

Date Published: 21 February 2014
PDF: 6 pages
Proc. SPIE 9142, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013, 914223 (21 February 2014); doi: 10.1117/12.2057683
Show Author Affiliations
Wu-ming Wu, National Univ. of Defense Technology (China)
Anhui Institute of Optics and Fine Mechanics (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Yu Ning, National Univ. of Defense Technology (China)
Peng-fei Zhang, Anhui Institute of Optics and Fine Mechanics (China)
Xiao-xing Feng, Anhui Institute of Optics and Fine Mechanics (China)
Chun-hong Qiao, Anhui Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 9142:
Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013
Jorge Ojeda-Castaneda; Shensheng Han; Ping Jia; Jiancheng Fang; Dianyuan Fan; Liejia Qian; Yuqiu Gu; Xueqing Yan, Editor(s)

© SPIE. Terms of Use
Back to Top