Control of the intensity fluctuations of random electromagnetic beams on propagation in weak atmospheric turbulence

O. Korotkova

doi:10.1117/12.644254

1 March 2006 Control of the intensity fluctuations of random electromagnetic beams on propagation in weak atmospheric turbulence

O. Korotkova

Author Affiliations +

Proceedings Volume 6105, Free-Space Laser Communication Technologies XVIII; 61050V (2006) https://doi.org/10.1117/12.644254
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

The intensity fluctuations of random electromagnetic beams propagating in the atmosphere are studied. For such beams it is shown that when the atmospheric fluctuations are weak then the scintillation index (the normalized variance of intensity fluctuations) of the beam at any distance from the source depends not only on the state of coherence but also on the degree of polarization of the beam in the source plane. In particular, we found that for initially unpolarized beams the scintillation index generally takes on smaller values than that for completely polarized beams. The presented analysis might be useful in the applications (e.g. communications, laser radars) where atmospheric effects can be mitigated by adjusting the coherence properties and the polarization properties of the source.

Citation Download Citation

O. Korotkova "Control of the intensity fluctuations of random electromagnetic beams on propagation in weak atmospheric turbulence", Proc. SPIE 6105, Free-Space Laser Communication Technologies XVIII, 61050V (1 March 2006); https://doi.org/10.1117/12.644254

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