Share Email Print
cover

Proceedings Paper

Effects of beam wander on free-space optical communications through turbulent atmosphere
Author(s): Zhijun Zhao; Rui Liao
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

Effects of beam wander on uncoded bit-error-rate (BER) of direct-detection OOK modulated FSO communication systems using collimated and focused Gaussian beams are studied. Channel fading statistics are obtained from large-scale wave optics simulations and compared with the closed-form log-normal and gamma-gamma models. The avalanche photodiode (APD) is chosen for photodetection. The accurate McIntyre-Conradi APD model is adopted for performance evaluation. Results show that large performance gain (more than 15dB) can be achieved with fast-tracked focused beams. The upper bound of higher-order adaptive optics gain beyond tracking gain is also studied.

Paper Details

Date Published: 4 May 2010
PDF: 12 pages
Proc. SPIE 7685, Atmospheric Propagation VII, 76850K (4 May 2010); doi: 10.1117/12.852479
Show Author Affiliations
Zhijun Zhao, Michigan Technological Univ. (United States)
Rui Liao, Michigan Technological Univ. (United States)


Published in SPIE Proceedings Vol. 7685:
Atmospheric Propagation VII
Linda M. Wasiczko Thomas; Earl J. Spillar, Editor(s)

© SPIE. Terms of Use
Back to Top