Effects of beam wander on free-space optical communications through turbulent atmosphere
Document Type
Conference Proceeding
Publication Date
6-22-2010
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. © 2010 Copyright SPIE - The International Society for Optical Engineering.
Publication Title
Proceedings of SPIE - The International Society for Optical Engineering
Recommended Citation
Zhao, Z.,
&
Liao, R.
(2010).
Effects of beam wander on free-space optical communications through turbulent atmosphere.
Proceedings of SPIE - The International Society for Optical Engineering,
7685.
http://doi.org/10.1117/12.852479
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/12147