Analytical formula for a decentered elliptical Gaussian beam propagating in a turbulent atmosphere |
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| Authors: | Yangjian Cai Di Ge |
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| Institution: | a Division of Electromagnetic Engineering, School of Electrical Engineering, Royal Institute of Technology, 10044 Stockholm, Sweden
b School of Mechanical and Electrical Engineering, Jiaxing University, Jiaxing, Zhejiang, 314001, China |
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| Abstract: | Analytical formulas for the average intensity and decentered parameter of a decentered elliptical Gaussian beam (DEGB) propagating in a turbulent atmosphere are derived in a tensor form. The propagation properties of a DEGB in a turbulent atmosphere are investigated in detail, and found to be different from that in free space. Furthermore, as an application example, we investigate the propagation of a decentered elliptical flat-topped beam (DEFB) by expressing its electric field as a finite sum of DEGBs in a turbulent atmosphere. The properties of a DEGB or a DEFB in a turbulent atmosphere are closely related with the beam’s parameters and the structure constant of the turbulent atmosphere. |
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| Keywords: | 42 25 Bs 41 85 Ew 42 68 Bz |
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