北京师范大学全球变化与地球系统科学研究院
北京师范大学全球变化与地球系统科学研究院
   
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Influence of atmospheric turbulence on the transmission of orbital angular momentum for Whittaker-Gaussian laser beams

 

Yixin Zhang,1, 2, * Mingjian Cheng,1,2 Yun Zhu,2 Jie Gao,1 WeiyiDan,1 Zhengda Hu1 and Fengsheng Zhao3

 

1 School of Science, Jiangnan University, Wuxi 214122, China

2School of Internet of Things, Jiangnan University, Wuxi 214122, China

3 College of Global Change and Earth System Sciences (GCESS), Beijing Normal University, Beijing 100875, China

 

ABSTRACT

We analyze the effects of turbulence on the detection probability spectrum and the mode weight of the orbital angular momentum (OAM) for Whittaker-Gaussian (WG) laser beams in weak non-Kolmogorov turbulence channels. Our numerical results show that WG beam is a better light source for mitigating the effects of turbulence with several adjustable parameters. The real parameters of WG beams γ and W0, which have significant effects on the mode weight, have no influence on the detection probability spectrum. Larger signal OAM quantum number, shorter wavelength, smaller beamwidth and coherence length will lead to the lower detection probability of the signal OAM mode.

 

PUBLISHED BY: OPTICS EXPRESS, 2014, 22 (18): 22101-22110

 

SOURCE: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-22-18-22101