Orbital angular momentum mode of Gaussian beam induced by atmospheric turbulence

被引：0

作者：

Cheng, Mingjian ^{[1
,2
]}

Guo, Lixin ^{[1
]}

Li, Jiangting ^{[1
]}

Yan, Xu ^{[1
]}

Dong, Kangjun ^{[3
]}

机构：

[1] Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Shaanxi, Peoples R China

[2] State Key Lab Pulsed Power Laser Technol, Hefei 230037, Anhui, Peoples R China

[3] Weinan Normal Univ, Sch Math & Phys, Weinan 714099, Peoples R China

来源：

FOURTH SEMINAR ON NOVEL OPTOELECTRONIC DETECTION TECHNOLOGY AND APPLICATION | 2018年 / 10697卷

基金：

中国国家自然科学基金;

关键词：

Atmospheric turbulence; Orbital angular momentum; Mode probability; Gaussian beam;

D O I：

10.1117/12.2309755

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：

Superposition theory of the spiral harmonics is employed to numerical study the transmission property of the orbital angular momentum (OAM) mode of Gaussian beam induced by atmospheric turbulence. Results show that Gauss beam does not carry OAM at the source, but various OAM modes appear after affected by atmospheric turbulence. With the increase of atmospheric turbulence strength, the smaller order OAM modes appear firstly, followed by larger order OAM modes. The beam spreading of Gauss beams in the atmosphere enhance with the increasing topological charge of the OAM modes caused by atmospheric turbulence. The mode probability density of the OAM generated by atmospheric turbulence decreases, and peak position gradually deviate from the Gauss beam spot center with the increase of the topological charge. Our results may be useful for improving the performance of long distance laser digital spiral imaging system.

引用

页数：7

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