Mean intensity of lowest order Bessel-Gaussian beams with phase singularities in turbulent atmosphere

Yue, Xifu; Xia, Ge; Lyu, Yudong; Zhao, Rui; Wang, Benyi; Han, Kezhen; Zhang, Wenfei; Man, Zhongsheng; Fu, Shenggui

doi:10.1016/j.ijleo.2020.165215

Cited by 8 publications

(12 citation statements)

References 28 publications

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“…The probability that the instantaneous SNR is below a threshold level γth is termed the outage probability, Pout 6 – 32 This is just the CDF Pout=P{γs≤γth}, which in terms of Eq. (50) is simply Pout(γth;δ)=Fγs(γth;δ).…”

Section: Analysis Of Snr and Outage Probabilitymentioning

confidence: 99%

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Scintillation and bit error rate analysis of zero-order Bessel–Gauss beams in atmospheric turbulence based on the extended Rytov theory

Shishter,

Ali,

Young

2023

Opt. Eng.

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Free space diffraction causes the spreading of the received energy at the receiver and thus reduces the signal-to-noise ratio. Bessel-Gauss (BG) beams are considered physically realizable beams, which are robust to free space diffraction over finite propagation distances. Non-diffraction beams have proved useful in many applications, such as optical wireless communications (OWC) and non-linear optics. However, in turbulence BG-beams do suffer from turbulence-induced diffraction. The extended Huygens-Fresnel principle is the main tool of analysis under the effect of strong turbulence. However, the extended Rytov theory (ERT) method provides expressions for the small-and large-scale turbulence-induced signal fluctuations and hence is particularly suitable for statistical channel modeling. In this work, application of the ERT to BG-beams propagating through turbulence is carried out. Closed-form expressions for the induced on-axis small-and large-scale log-irradiance variances are derived. The resultant index of scintillation is analyzed. Then, the error performance of OWC is investigated for BG-beams combined with intensity modulation, M-ary phase shift keying, polarization shift keying, and single-inputmultiple-output systems. Significant performance gains are reported compared to Gaussian beams.

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Section: Analysis Of Snr and Outage Probabilitymentioning

confidence: 99%

“…In Refs. 8, 15, and 16, the beam average intensity and correlation function were investigated using the extended Huygens–Fresnel (EHF) principle 9 . Expressions for the index of scintillation (SI) were derived based on Rytov weak fluctuation theory for the n’th order Bessel beam in Ref.…”

Section: Introductionmentioning

confidence: 99%

Scintillation and bit error rate analysis of zero-order Bessel–Gauss beams in atmospheric turbulence based on the extended Rytov theory

Shishter,

Ali,

Young

2023

Opt. Eng.

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“…It is clear that the central hole and the dark ring of the beams are gradually filled with the decrease of wavelength. Also, mean intensity of BGV beam decreases faster as the beam operating at a shorter wavelength or having either a narrower beam width, or a smaller topological charge [53]. Finally, a comparison between LG beam and BGV beam is conducted in terms of transmission quality and stability.…”

Section: Influence Of (A) Topological Charge and (B) Mode Probability Density (Mpd) And Crosstalk Probability Density Of Low-order Lg Beamentioning

confidence: 99%

“…Figure 2. (a) The average intensity of vortex Bessel beam versus dimensionless parameter and (b) BesselGaussian vortex beam with different wavelength, (c) illustration of the radius of a ring dislocation of vortex beam as a function of structure constant, and (d) beam order effect on the intensity distributions for four petal GV beam[22,[53][54][55].…”

mentioning

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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“…In recent years, major research efforts have been devoted to the theoretical study of propagation of special beams in atmospheric turbulence, including vortex laser beam, vortex cosine hyperbolic Gaussian beam, airy prime beam, lowest order Bessel Gaussian beams, high power partially coherent laser beams, low order Laguerre-Gaussian beams, Bessel-Gaussian-Schell model beam, vortex Bessel-like beams, optical bottle beam, radial phased-locked rotating elliptical Gaussian beam array, airy Gaussian vortex beam array, flat-topped Gaussian vortex beam, generalized Bessel-Laguerre-Gaussian beams, and so on. Furthermore, the atmospheric turbulent effects involve mean intensity, scintillation, coherence, beam spreading, wander, and other propagation properties [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47].…”

Section: Theoretical Studies Of Kolmogorov Turbulent Effectmentioning

confidence: 99%

A Survey of Structure of Atmospheric Turbulence in Atmosphere and Related Turbulent Effects

Fa-zhi¹,

Du²,

Yuan³

et al. 2021

Atmosphere

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The Earth’s atmosphere is the living environment in which we live and cannot escape. Atmospheric turbulence is a typical random inhomogeneous medium, which causes random fluctuations of both the amplitude and phase of optical wave propagating through it. Currently, it is widely accepted that there exists two kinds of turbulence in the aerosphere: one is Kolmogorov turbulence, and the other is non-Kolmogorov turbulence, which have been confirmed by both increasing experimental evidence and theoretical investigations. The results of atmospheric measurements have shown that the structure of atmospheric turbulence in the Earth’s atmosphere is composed of Kolmogorov turbulence at lower levels and non-Kolmogorov turbulence at higher levels. Since the time of Newton, people began to study optical wave propagation in atmospheric turbulence. In the early stage, optical wave propagation in Kolmogorov atmospheric turbulence was mainly studied and then optical wave propagation in non-Kolmogorov atmospheric turbulence was also studied. After more than half a century of efforts, the study of optical wave propagation in atmospheric turbulence has made great progress, and the theoretical results are also used to guide practical applications. On this basis, we summarize the development status and latest progress of propagation theory in atmospheric turbulence, mainly including propagation theory in conventional Kolmogorov turbulence and one in non-Kolmogorov atmospheric turbulence. In addition, the combined influence of Kolmogorov and non-Kolmogorov turbulence in Earth’s atmosphere on optical wave propagation is also summarized. This timely summary is very necessary and is of great significance for various applications and development in the aerospace field, where the Earth’s atmosphere is one part of many links.

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Mean intensity of lowest order Bessel-Gaussian beams with phase singularities in turbulent atmosphere

Cited by 8 publications

References 28 publications

Scintillation and bit error rate analysis of zero-order Bessel–Gauss beams in atmospheric turbulence based on the extended Rytov theory

Scintillation and bit error rate analysis of zero-order Bessel–Gauss beams in atmospheric turbulence based on the extended Rytov theory

The Propagation of Vortex Beams in Random Mediums

A Survey of Structure of Atmospheric Turbulence in Atmosphere and Related Turbulent Effects

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