Atmospherically turbulent effects on partially coherent flat-topped Gaussian beam

Jian-zhu Zhang; You-kuan Li

doi:10.1117/12.619887

12 May 2005 Atmospherically turbulent effects on partially coherent flat-topped Gaussian beam

Jian-zhu Zhang, You-kuan Li

Proceedings Volume 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies; (2005) https://doi.org/10.1117/12.619887
Event: Optical Technologies for Atmospheric, Ocean, and Environmental Studies, 2004, Beijing, China

Abstract

The influence of atmospheric turbulence on partially coherent flat-topped Gaussian beam is investigated in this paper. Partially coherent flat-topped Gaussian beam is expanded as a superposition of independent Hermite-Gaussian modes. Propagation of laser beam through the turubulent atmosphere is numerically studied using phase screen approximation. We deduc two expressions to fit the results of numerical simulation. One describes the dependence of the rms width of the beam on the order number N, the psreading distance and the intensity of turbulence. The other describes the dependence of the coherent length of the beam on that of its initial time and that of turbulence.

Citation Download Citation

Jian-zhu Zhang and You-kuan Li "Atmospherically turbulent effects on partially coherent flat-topped Gaussian beam", Proc. SPIE 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies, (12 May 2005); https://doi.org/10.1117/12.619887

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