Scintillation index and bit error rate of partially coherent twisted Gaussian beams in turbulent atmosphere

Xu, Ying; Xu, Yonggen

doi:10.1007/s11082-023-04766-0

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…The effect of the twist factor of partially coherent twisted Gaussian beam on the scintillation and BER is analysed. It is reported that twist factor and the scintillation index are inversely proportional [15]. By using synthetic double vortex beam, it is shown that BER of on-off keying is less than other phase shift keying [16].…”

Section: Introductionmentioning

confidence: 99%

Analysis of finite energy fresnel bessel beams scintillation level in turbulent communication links

Akcan,

Bayraktar,

Elmabruk

2024

Phys. Scr.

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Scintillation indices of Finite Energy Fresnel-Bessel Beams (FEFBBs) propagating for 6Km in a turbulent atmosphere are analysed. In this context, the effects of beam order and Gaussian beam waist on the reduction of scintillation level are evaluated. Both the point-like scintillation and the power scintillation indices are examined. The obtained results show that beam order does not have a significant impact on the scintillation levels. FEFBBs are able to reduce the power scintillation levels, then improve the system performance better than fundamental Gaussian beams. Thus, the provided results are significant for not only the performance improvement of the free-space optical (FSO) communication systems but also for the applications that require line of sight alignment namely directed infrared countermeasure (DIRCM).

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Section: Introductionmentioning

confidence: 99%

Analysis of finite energy fresnel bessel beams scintillation level in turbulent communication links

Akcan,

Bayraktar,

Elmabruk

2024

Phys. Scr.

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“…Numerous researches have demonstrated that partially coherent (PC) beam has significant application prospects in the fields of detecting and imaging atmospheric lidar [1], optical communications [2][3][4][5][6][7], remote sensing [5][6][7], etc. It is for the reason that PC beam can effectively suppress beam wander [4,5,8,9], intensity scintillation [4,5,8,10]. In 1992, Allen [11] et.…”

Section: Introductionmentioning

confidence: 99%

Evolution properties of partially coherent electromagnetic elliptical vortex beam propagating through atmospheric turbulence

Liu,

Xu,

et al. 2024

Phys. Scr.

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We obtained the analytical formulas of partially coherent electromagnetic elliptical vortex beam (PCEEVB) propagating through atmospheric turbulence with the help of the extended Huygens-Fresnel principle and explored the normalized average intensity distribution of PCEEVB in turbulence. It is worth noting that the PCEEVB appears new characteristics such as self-rotating, self-splitting, and self-healing in turbulence. It can be also found that the number of peaks caused by splitting of beams is relevant to the topological charge n. What’s more, reducing the ellipticity, magnifying the topological charge, and increasing the initial coherent length δ0 can improve the anti-turbulence ability of PCEEVB in turbulence. The multi-phase screen simulation results are consistent with the theoretical results. Our results will have significant implications for laser communications, laser radar, and laser remote sensing.

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“…The performance of communication channels in a turbulent atmosphere can be improved by employing partially coherent beams [19][20][21]. In the past few decades, the propagation properties of the many types of partially coherent beams, for example, the Gaussian-Schell beam [22], partially coherent rectangular array beams [23], the Gaussian-Schell model vortex beam [24], partially coherent radially polarized beams [25], Airy-Schell beams [26], partially coherent four-petal elliptic Gaussian vortex beams [27], partially coherent beams carrying a cross phase [28], and partially coherent twisted Gaussian beams [29] have been researched and used to mitigate the effects of a turbulent atmosphere on the signal quality of FSO communications.…”

Section: Introductionmentioning

confidence: 99%

Performance of Orbital Angular Momentum Communication for a Non-Uniformly Correlated High-Order Bessel–Gaussian Beam in a Turbulent Atmosphere

Cong,

Zhang,

Gao

et al. 2024

Photonics

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We derived the formula for the detection probability, signal-to-noise ratio (SNR), and average bit error rate (BER) for the signal orbital angular momentum (OAM) state carried via non-uniformly correlated high-order Bessel–Gaussian beam propagation in a turbulent atmosphere. The wavelength, receiver aperture, beam width, strength of the turbulent atmosphere, and topological charge effect on detection probability, SNR, and average BER of the signal OAM state were demonstrated numerically. The results show that the signal OAM state with low topological charge, a small receiver aperture, a narrow beam width, and a long wavelength can improve the performance of optical communications systems under conditions of weak atmospheric turbulence. Our results will be useful in long-distance free space optical (FSO) communications.

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Scintillation index and bit error rate of partially coherent twisted Gaussian beams in turbulent atmosphere

Cited by 4 publications

References 35 publications

Analysis of finite energy fresnel bessel beams scintillation level in turbulent communication links

Analysis of finite energy fresnel bessel beams scintillation level in turbulent communication links

Evolution properties of partially coherent electromagnetic elliptical vortex beam propagating through atmospheric turbulence

Performance of Orbital Angular Momentum Communication for a Non-Uniformly Correlated High-Order Bessel–Gaussian Beam in a Turbulent Atmosphere

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