Estimate of effect of initial field distribution using streamlines of the average Poynting vector on the change of the effective spot size of the laser beam propagating in the turbulent atmosphere

D. A. Marakasov; D. S. Rytchkov

doi:10.1117/12.2205302

19 November 2015 Estimate of effect of initial field distribution using streamlines of the average Poynting vector on the change of the effective spot size of the laser beam propagating in the turbulent atmosphere

D. A. Marakasov, D. S. Rytchkov

Author Affiliations +

Proceedings Volume 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics; 968011 (2015) https://doi.org/10.1117/12.2205302
Event: XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2015, Tomsk, Russian Federation

Abstract

The results of studies of the effect of the initial distribution of the laser beam to change its effective spot size in a turbulent atmosphere are presented. Investigations were carried out for axially symmetric light beams using the method of streamlines of the averaged Poynting vector. The dependence on a shape of the initial intensity distribution of effective spot size of the beam at the receiving plane is investigated as in presence as in absence of phase dislocations in the initial field distribution. It has been shown that it is possible to choose the values of the parameters of ring and vortex beams and that the magnitude of the effective spot size in the plane of the reception will be lower than for a Gaussian beam with the same value of initial effective spot size in the propagation of laser radiation in a turbulent atmosphere.

Citation Download Citation

D. A. Marakasov and D. S. Rytchkov "Estimate of effect of initial field distribution using streamlines of the average Poynting vector on the change of the effective spot size of the laser beam propagating in the turbulent atmosphere", Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 968011 (19 November 2015); https://doi.org/10.1117/12.2205302

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