Properties of circular cosh-gaussian beams focused by a thin lens system under a turbulent atmosphere

被引：5
|
作者：
Lazrek, M. [1 ]
Hricha, Z. [1 ]
Belafhal, A. [1 ]
机构：
[1] Chouaib Doukkali Univ, Fac Sci, Dept Phys, Lab LPNAMME,Laser Phys Grp, PB 20, El Jadida 24000, Morocco
来源：
OPTICAL AND QUANTUM ELECTRONICS | 2023年 / 55卷 / 06期
关键词：
Circular cosh-gaussian beams; Turbulent atmosphere; Extended collins formula; Thin lens system; On-axis average intensity; LASER-BEAMS; PROPAGATION CHARACTERISTICS; OPTICAL-SYSTEM;
D O I：
10.1007/s11082-023-04773-1
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The propagation of a Circular cosh-Gaussian beam (CiChGB) through a paraxial ABCD optical system in a turbulent atmosphere is investigated based on the extended Collins formula and Rytov theory. In particular, the analytical expression for the on-axis average intensity of a CiChGB focused by a thin lens in a turbulent atmosphere is derived in detail. From the obtained formula, the on-axis intensity distribution of the output beam is discussed numerically with a comparison to direct propagation in free space. The influences of the turbulence strength and initial beam parameters on the on-axis intensity are examined. It is found that the on-axis intensity near the focus region is less affected by atmospheric turbulence compared to the free space.
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页数：13
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