Atmospheric turbulence effects on a partially coherent Gaussian beam: implications for free-space laser communication
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- 1 September 2002
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America A
- Vol. 19 (9) , 1794-1802
- https://doi.org/10.1364/josaa.19.001794
Abstract
A partially coherent quasi-monochromatic Gaussian laser beam propagating in atmospheric turbulence is examined by using a derived analytic expression for the cross-spectral density function. Expressions for average intensity, beam size, phase front radius of curvature, and wave-front coherence length are obtained from the cross-spectral density function. These results provide a model for a free-space laser transmitter with a phase diffuser used to reduce pointing errors.Keywords
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