Effect of partially coherent quasi-monochromatic Gaussian beam on probability of fade

Olga Korotkova; Larry C. Andrews; Ronald L. Phillips

doi:10.1117/12.504174

27 January 2004 The effect of partially coherent quasi-monochromatic Gaussian beam on the probability of fade

Olga Korotkova, Larry C. Andrews, Ronald L. Phillips

Proceedings Volume 5160, Free-Space Laser Communication and Active Laser Illumination III; (2004) https://doi.org/10.1117/12.504174
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

The effect of a (spatially) partially coherent quasi-monochromatic lowest order Gaussian-beam on the direct detection system is studied in weak and strong atmospheric turbulence. The analytic expression for the scintillation index has been developed and analysed as a function of the spatial correlation distance (lc) and the correlation time (ts), associated with the source, as well as the strength of turbulence and the integration time (td) of the detector. The probability of fade is also studied as a function of relative detector speed td/ts. The limiting cases of slow (td>>ts) and fast (td<

Citation Download Citation

Olga Korotkova, Larry C. Andrews, and Ronald L. Phillips "The effect of partially coherent quasi-monochromatic Gaussian beam on the probability of fade", Proc. SPIE 5160, Free-Space Laser Communication and Active Laser Illumination III, (27 January 2004); https://doi.org/10.1117/12.504174

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