Near-optimal focus for Gaussian beam propagation through turbulence: analysis and wave optics simulation results

Xifeng Xiao; David Voelz

doi:10.1117/12.836953

31 August 2009 Near-optimal focus for Gaussian beam propagation through turbulence: analysis and wave optics simulation results

Xifeng Xiao, David Voelz

Author Affiliations +

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 738247 (2009) https://doi.org/10.1117/12.836953
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

We recently proposed a metric that incorporates scintillation reduction and beam spread for evaluating the performance of a partially coherent laser beam propagating through atmospheric turbulence. The metric was evaluated relative to other measures such as probability of fade and number of fades and it was verified that the metric can be used to find the parameters for optimal or near-optimal beam performance. In this work, we review the performance metric and develop analytical expressions as a function of the source beam curvature F₀ and other link parameters. The behavior of the metric as a function of F₀ is investigated for different link scenarios. A wave (physical) optics simulation is also implemented and its results compare favorably with the analytical results.

Citation Download Citation

Xifeng Xiao and David Voelz "Near-optimal focus for Gaussian beam propagation through turbulence: analysis and wave optics simulation results", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 738247 (31 August 2009); https://doi.org/10.1117/12.836953

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