Propagation of partially coherent four-petal elliptic Gaussian vortex beams in atmospheric turbulence

Wu, Kenan; Huai, Ying; Zhao, Tianliang; Jin, Yuqi

doi:10.1364/oe.26.030061

Cited by 21 publications

(12 citation statements)

References 28 publications

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“…is the coherence length of a spherical wave propagated in the turbulent atmosphere, and C n 2 denotes the structure constant of the turbulent atmosphere. It is shown in [33][34][35] that the quadratic approximation made in (6) is reasonable and valid for all conditions of atmospheric turbulence, in particular for the strong turbulence [36] that has been analysed in this paper. Substituting (1) and (6) into (5), the average intensity of laser beams 1 and 2 at the receiver aperture 1 is obtained as…”

Section: Mimo Fso System Descriptionmentioning

confidence: 89%

Performance improvement of MIMO FSO systems against destructive interference

Eghbal

Abouei

2019

IET Communications

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Section: Mimo Fso System Descriptionmentioning

confidence: 89%

Performance improvement of MIMO FSO systems against destructive interference

Eghbal

Abouei

2019

IET Communications

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“…In the light of this, raise in topological charge provides larger hollow in the center for four petal Lorentz-Gauss vortex beam [22]. Similarly, larger topological charge reduces the effect of atmospheric turbulence on partially coherent elliptic Gaussian vortex beams [23]. Partially coherent four petal Gaussian beam shows resistance to oceanic turbulence if it is generated with larger beam order [24].…”

Section: Effect Of Aperture Averaging On Four Petal Gaussian Beams In Atmospheric Turbulencementioning

confidence: 99%

Effect of aperture averaging on four petal Gaussian beams in atmospheric turbulence

Bayraktar

2021

International Advanced Researches and Engineering Journal

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Aperture averaged scintillation of four petal Gaussian beam is studied in this article. Split step propagation approach which is used in wave propagation applications is selected to model atmospheric turbulence. Results are plotted in two types. First type is the analysis of aperture averaged scintillation versus propagation distance for constant receiver aperture. Second ones involve scintillation performance applying aperture averaging at constant distance. All results are compared with Gauss beam since commercial lasers generally radiates in Gaussian distribution. We observe that four petal Gaussian beam becomes more advantageous under moderate turbulence than weak one. In other point of view, it is possible to obtain less scintillation index by increasing beam order. Our results are applicable optical applications operating in atmosphere.

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“…It is achieved that partially coherent four-petal elliptic Gaussian beams with larger topological charge, smaller beam order, and larger ellipticity factor are less influenced by atmospheric turbulence. Moreover, vortex beams spread faster with the decreasing of the coherence length [93]. Scintillation index of partially coherent radially polarized vortex (PCRPV) beams, and PCV are analyzed as well.…”

Section: Atmospheric Turbulencementioning

confidence: 99%

The Propagation of Vortex Beams in Random Mediums

Dalgaç¹,

Elmabruk²

2022

Vortex Dynamics - From Physical to Mathematical Aspects

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Vortex beams acquire increasing attention due to their unique properties. These beams have an annular spatial profile with a dark spot at the center, the so-called phase singularity. This singularity defines the helical phase structure which is related to the topological charge value. Topological charge value allows vortex beams to carry orbital angular momentum. The existence of orbital angular momentum offers a large capacity and high dimensional information processing which make vortex beams very attractive for free-space optical communications. Besides that, these beams are well capable of reducing turbulence-induced scintillation which leads to better system performance. This chapter introduces the research conducted up to date either theoretically or experimentally regarding vortex beam irradiance, scintillation, and other properties while propagating in turbulent mediums.

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Propagation of partially coherent four-petal elliptic Gaussian vortex beams in atmospheric turbulence

Cited by 21 publications

References 28 publications

Performance improvement of MIMO FSO systems against destructive interference

Performance improvement of MIMO FSO systems against destructive interference

Effect of aperture averaging on four petal Gaussian beams in atmospheric turbulence

The Propagation of Vortex Beams in Random Mediums

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