The Effects of Atmospheric Turbulence on the Orbital Angular Momentum-multiplexed System

Li, 邹丽 Zou; Shengmei, 赵生妹 Zhao; Le, 王乐 Wang

doi:10.3788/gzxb20144309.0901001

Cited by 3 publications

(3 citation statements)

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“…In this paper, the atmospheric random phase screen [29] is used to simulate the propagation of vortex beams in atmospheric turbulence [30], as in many papers [27,[31][32][33] related to the atmospheric turbulence. A random phase screen is placed every 50 meters on the horizontal transmission path [34], and the total horizontal transmission distance is 1 km. Meet the restrictions [35].…”

Section: Simulation and Experimentsmentioning

confidence: 99%

“…One of the main examples is that the linear expression of crosstalk variance of OAM modes can be derived directly, which has not been achieved by the previous integral expression. In this paper, the scattering variance and scattering width of vortex beams with different topological charges in different turbulence are drawn by using equations (33) and (34). The waist of the vortex beam is w 0 = 10 mm, the wavelength of the beam is λ = 532nm.…”

Section: Simulation and Experimentsmentioning

confidence: 99%

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Mode-dependent crosstalk and detection probability of orbital angular momentum of optical vortex beam through atmospheric turbulence

Zhang¹,

Shen²,

Liu³

et al. 2020

J. Opt.

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The crosstalk of orbital angular momentum (OAM) modes is one of the most important issues for free-space optical communication. We theoretically derive a crosstalk model for Laguerre–Gaussian (LG) vortex beams propagating in turbulent atmosphere. The calculated crosstalk of different OAM modes in different turbulence by analytical expression is consistent with experimental measurements. Both theoretical and experimental results reveal that the crosstalk of high order LG vortex beams is more obvious in atmospheric turbulence. Different from the numerical calculation of the integral expression of the previous studies, this analytical expression can directly and quantitatively characterize the crosstalk and the law of different topological charges in vortex beams. Based on this analytical expression, the crosstalk widths of vortex beams with different topological charges can be calculated accurately, so that the optimal sets of OAM modes can be found more easily under each atmospheric turbulence condition.

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Section: Simulation and Experimentsmentioning

confidence: 99%

Section: Simulation and Experimentsmentioning

confidence: 99%

Mode-dependent crosstalk and detection probability of orbital angular momentum of optical vortex beam through atmospheric turbulence

Zhang¹,

Shen²,

Liu³

et al. 2020

J. Opt.

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show abstract

“…There are various forms of atmospheric refraction wave spectrum. In form of Kolmogorov model, it can be expressed as: Phase spectrum can be represented by atmospheric refraction wave spectrum as follows [6] [7] :…”

Section: Atmospheric Turbulence Given Bymentioning

confidence: 99%

The Influence of Atmospheric Turbulence on Radio Vortex Wave

Li¹,

Zhao²,

Zhang³

et al. 2017

Proceedings of the 3rd International Conference on Wireless Communication and Sensor Networks (WCSN 2016)

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Abstract-Spiral space phase distribution of the vortex wave form specific orbital angular momentum. This paper studies the effect of atmospheric turbulence on the vortex wave phase through the numerical simulation. In order to analyze the influence of atmospheric turbulence on the vortex wave, we make comparison between various effects by different atmosphere structure constants, transmission distances and topological charges. When the refractive index structure constant is 8×10 -15 m -2/3 , the spiral phase change is about 37.5% ; When the refractive index structure constant increases up to a value of 8×10 -13 m -2/3 accordingly, spiral phase increases to 50%; when transmission distance reaches up to 1000 m, phase change increases to 62.5%. At the same time, in different azimuth space, spiral phase change effect is also different. The research results show that the strength of the atmospheric turbulence, space orientation, and wave transmission distance will make the OAM phase distribution of the vortex wave changes, therefore, they are the important factors of affecting the characteristics of the vortex waves OAM.

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Communication Performance of OAM Based FSO System in Weak Turbulence Environment

Wang

Yang

et al. 2022

2022 IEEE 10th International Conference on Information, Communication and Networks (ICICN)

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The Effects of Atmospheric Turbulence on the Orbital Angular Momentum-multiplexed System

Cited by 3 publications

References 0 publications

Mode-dependent crosstalk and detection probability of orbital angular momentum of optical vortex beam through atmospheric turbulence

Mode-dependent crosstalk and detection probability of orbital angular momentum of optical vortex beam through atmospheric turbulence

The Influence of Atmospheric Turbulence on Radio Vortex Wave

Communication Performance of OAM Based FSO System in Weak Turbulence Environment

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