Effects of the turbulent atmosphere and the oceanic turbulence on the propagation of a rotating elliptical Gaussian beam

Xie, Jintao; Ye, Feng; Zhou, Kangzhu; Chen, Xingyu; Yang, Xiangbo

doi:10.1007/s00340-018-7038-2

Cited by 18 publications

(3 citation statements)

References 38 publications

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“…Beam width of rotating elliptical Gaussian beam is calculated while it is propagating in oceanic and atmospheric turbulence. Results show that received beam width decreases as turbulence strength decreases [21]. Besides, phase distribution of radially polarized partially coherent rotating elliptical cosine-Gaussian beam with vortices becomes decentered along underwater propagation [22].…”

Section: Introductionmentioning

confidence: 95%

Scintillation analysis of Weber beam in atmospheric turbulence

Bayraktar¹

2021

Phys. Scr.

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This paper presents scintillation performance of Weber beam propagating in atmospheric turbulence. Weber beam is defined in parabolic cylindrical coordinates and it will be troublesome to solve analytically. Because of that reason, source field expression is converted into Cartesian coordinates and numerical atmospheric model is used. Our results indicate that Weber beam brings the advantage because scintillation index is substantially less as compared to spherical wave and Gaussian beam. It is possible to mitigate scintillation if Weber beam involving more and small intensities is generated. We anticipate that communication system designers will use outputs of this study.

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Section: Introductionmentioning

confidence: 95%

Scintillation analysis of Weber beam in atmospheric turbulence

Bayraktar¹

2021

Phys. Scr.

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“…where I is the optical intensity of the received CP-OOK signal, and 〈.〉 is the ensemble average [13,14]. In the receiver terminal, the RCP of CP-OOK is recovered into linear polarization by QWP without the aligning procedure of polarization coordinates between the transmitter and receiver.…”

Section: Operation Principlementioning

confidence: 99%

Multi-Level Logarithmic Amplification-Based Fixed Threshold Circular Polarized On-Off Keying Detection for Free-Space Optical Communications

Jing

Hong

2023

Photonics

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This study investigates a multi-level logarithmic amplification (MLA)-based fixed threshold circular polarized on-off keying (CP-OOK) detection for free-space optical (FSO) communication links. OOK signal is polarized into a single circular polarization state by a linear polarizer (LP) and a quarter-wave plate (QWP). In the receiver terminal, firstly, circular polarization is transformed into linear polarization utilizing QWP without polarization coordinates alignment between transmitter and receiver. Then, the background noises are decreased by polarization filtering using LP. Then, CP-OOK signal intensity variation is eliminated by nonlinear gains from MLAs in the low gain nonlinearity condition. Finally, fixed threshold decision (FTD) is realized by optimizing cascaded LAs to reduce the extinction ratio distortion of the CP-OOK signal. The proposed CP-OOK transmission is analyzed under various strengths of turbulence channel and different configurations of MLAs. Simulation results demonstrated that the proposed CP-OOK signal was effectively detected by FTD with optimized MLAs.

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“…These beams provide suitable models to describe some relatively highly divergent light fields, and their related beams can produce intensity distributions similar to Airy beams [ 14 ]. It is also known that elliptical beams provide additional parameters to control the beam shape [ 15 , 16 ]. Besides, using partially coherent beams as information carriers in free space optical communication can effectively reduce the negative effects induced by turbulence [ 17 ], since the coherence function of partially coherent beams provides more degrees of freedom for further reducing flicker index and beam drift [ 18 ], with relevant experimental proofs given in Refs.…”

Section: Introductionmentioning

confidence: 99%

Propagation of Lorentz-Gaussian elliptical multi-Gaussian correlated Schell-Model beam in anisotropic turbulence

Mao

2023

Heliyon

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Effects of the turbulent atmosphere and the oceanic turbulence on the propagation of a rotating elliptical Gaussian beam

Cited by 18 publications

References 38 publications

Scintillation analysis of Weber beam in atmospheric turbulence

Scintillation analysis of Weber beam in atmospheric turbulence

Multi-Level Logarithmic Amplification-Based Fixed Threshold Circular Polarized On-Off Keying Detection for Free-Space Optical Communications

Propagation of Lorentz-Gaussian elliptical multi-Gaussian correlated Schell-Model beam in anisotropic turbulence

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