Statistical distribution of the OAM states of Bessel–Gaussian–Schell infrared beams in strong turbulent atmosphere

Li, Ye; Zhang, Yixin; Wang, Donglin; Shan, Li; Xia, M.; Zhao, Yuanhang

doi:10.1016/j.infrared.2016.04.021

Cited by 12 publications

(4 citation statements)

References 15 publications

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“…Exciting research has been focused on utilizing OAM across various frequency ranges, including visible, infrared, terahertz, and millimeter wavelengths [2][3][4][5]. The vortex wave-matter interactions in the infrared region plays a crucial role and is highly demanded in wide-ranging applications, including (but not limited to) optical communication [6], astronomic observation [7], defect detection, and infrared sensing [8].…”

Section: Introductionmentioning

confidence: 99%

Analyzing Vortex Light Beam Scattering Characteristics from a Random Rough Surface

Zhang,

Su,

et al. 2023

Photonics

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The propagation and scattering of vortex light beams in complex media have significant implications in the fields of laser imaging, optical manipulation, and communication. This paper investigates the scattering characteristics of vortex light beams from a random rough surface. Firstly, a two-dimensional Gaussian rough surface is generated using the Monte Carlo method combined with the linear filtering method. Subsequently, the vortex beams are decomposed into the superposition of infinite plane waves, and the scattering of each plane wave from the rough surface is calculated using the Kirchhoff Approximation method. Numerical results of the angle distribution and spatial distribution of OAM scattering Laser Radar Cross Section (LRCS) are presented, varying with different surface roughness parameters for a rough aluminum surface and the beam’s parameters. The results demonstrate that the scattering of vortex beams is influenced by the beam’s parameters, such as Orbital Angular Momentum (OAM) mode number and elevation angle, which may bring new insights into vortex wave-matter interactions and their applications in high resolution imaging.

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Section: Introductionmentioning

confidence: 99%

Analyzing Vortex Light Beam Scattering Characteristics from a Random Rough Surface

Zhang,

Su,

et al. 2023

Photonics

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“…In turbulence free channels, on the receiver side, the phase patterns for instance, created by different TC values are clearly distinguishable from each other. But when turbulence is introduced into the communication channel, this distinguishability drastically reduces [3]. Hence various novel TC and OAM state detection techniques have been proposed and investigated in the literature.…”

Section: Introductionmentioning

confidence: 99%

Mutual coherence function based topological charge detection in a Gaussian vortex beam optical communication system

Eyyuboğlu¹

2022

Phys. Scr.

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We investigate a topological charge (TC) detection schema for an optical communication system employing Gaussian vortex beam (GVB). In this scenario, the transmitter maps the electrical message symbols to the TCs of GVBs. Thus obtained optical signal propagates in turbulent atmosphere arriving at the receiver, where a detection process is implemented to determine the TC of GVB by correlating the imaginary part of the mutual coherence function (MCF) of the incoming beam against the stored profiles. The feasibility of such a schema is firstly established by examining and comparing the analytical formulation of MCF and that of random phase screen setup. The latter is then used to explore the success rate and boundaries of this particular detection schema. Our results show that the proposed detection schema can operate with a error rate of 5 % at a link length of 5.5 km and atmospheric turbulence structure constant of 10-14.

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“…It is well known that scintillation is the main obstacle to the correct detection on the receiver side [18]. Furthermore, to estimate the theoretical error performance of such a communication system, an analytic form of scintillation expression for vortex beams is essential [1,19]. And such an expression covering all regimes of turbulence is currently unavailable.…”

Section: Introductionmentioning

confidence: 99%

Scintillations of Gaussian vortex beams with effective spectrum

Eyyuboğlu¹

2021

Phys. Scr.

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We undertake the aperture averaged scintillation derivation of Gaussian vortex beam using Rytov approximation. For this purpose, point-like scintillation is formulated initially and is then converted into the aperture averaging form via overlap procedure. The numeric values delivered by this aperture averaged derivation are plotted side by side against the results obtained from random phase screen simulation. There it is seen that similar to point-like scintillation, the range of validity of the aperture averaged scintillation of Rytov approximation is also limited to weak turbulence range. Incorporating the effective spectrum of spherical wave into the aperture averaged expression demonstrates that it is possible to extend the validity of the aperture averaged derivation based on Rytov approximation to moderate and strong turbulence regimes. Our tests show that additional source beam specific terms are needed to fully adapt the effective spectrum.

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Statistical distribution of the OAM states of Bessel–Gaussian–Schell infrared beams in strong turbulent atmosphere

Cited by 12 publications

References 15 publications

Analyzing Vortex Light Beam Scattering Characteristics from a Random Rough Surface

Analyzing Vortex Light Beam Scattering Characteristics from a Random Rough Surface

Mutual coherence function based topological charge detection in a Gaussian vortex beam optical communication system

Scintillations of Gaussian vortex beams with effective spectrum

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