Beam Wandering in the Atmosphere: The Effect of Partial Coherence

Details Beam Wandering in the Atmosphere: The Effect of Partial Coherence Beam Wandering in the Atmosphere: The Effect of Partial Coherence

2007-09-17

arxiv.org/abs/0709.2588v1

Physics

Quantum Physics

16 pages, 5 figures

Scientific paper

10.1103/PhysRevE.76.056606

The effect of a random phase screen on laser beam wander in a turbulent atmosphere is studied theoretically. The method of photon distribution function is used to describe the photon kinetics of both weak and strong turbulence. By bringing together analytical and numerical calculations, we have obtained the variance of beam centroid deflections caused by scattering on turbulent eddies. It is shown that an artificial distortion of the initial coherence of the radiation can be used to decrease the wandering effect. The physical mechanism responsible for this reduction and applicability of our approach are discussed.

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