Radial Gaussian-Schell-model array beams in oceanic turbulence

Mao, Yuan; Mei, Zhangrong; Gu, Juguan; Zhao, Yuchen

doi:10.1007/s00340-017-6680-4

Cited by 11 publications

(3 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, with an increased demand for optical systems, the scientific research community has been interested in studying the challenges and advantages of the propagation partially coherent rectangular flat-topped laser array beams, [24] Gaussian Schell-model array beams, [25] radial Gaussian-Schell model array beams, [26] phase-locked partially coherent elegant Laguerre-Gaussian array beams, [27] radial phase-locked multi-Gaussian Schell-model array beams, [28] and radial phase-locked discrete vector beams, [29] phase locked and non-phase-locked laser array beams. [30] Coullet et al introduced the concept of vortex beams for the first time.…”

Section: Introductionmentioning

confidence: 99%

“…With this in mind, the laser array can be used for broad application prospects in the fields of high‐power systems, inertial confinement fusion, high‐energy weapons, and so on. For that reason, numerous studies of laser array beams have been published, such as the Gaussian Schell‐model array beam, [ 23 ] partially coherent rectangular flat‐topped laser array beams, [ 24 ] Gaussian Schell‐model array beams, [ 25 ] radial Gaussian‐Schell model array beams, [ 26 ] phase‐locked partially coherent elegant Laguerre–Gaussian array beams, [ 27 ] radial phase‐locked multi‐Gaussian Schell‐model array beams, [ 28 ] and radial phase‐locked discrete vector beams, [ 29 ] phase locked and non‐phase‐locked laser array beams. [ 30 ]…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Propagation Characteristics of a Partially Coherent Gaussian Schell‐model Array Vortex Beam in the Joint Turbulence Effect of a Jet Engine and Atmosphere

Nabil,

Balhamri,

Bayraktar

et al. 2023

Annalen der Physik

View full text Add to dashboard Cite

This work investigates the joint effects of jet engine exhaust‐induced turbulence and atmospheric turbulence on the propagation of a partially coherent Gaussian Schell‐model Array (GSMA) vortex beam. Using the two‐process propagation method, analytical formulae are derived for the cross‐spectral density, spectral density, degree of coherence, and beam width of the considered beam. The results show that the considered beam takes different shapes; when the spatial coherence is large, the spectral density of the GSMA vortex beam takes an elliptical shape, whereas when the spatial coherence is smaller, the spectral density remains a Gaussian shape. The evolution profile of the degree of coherence weakens gradually when the propagation distance, topological charge, and turbulence strength increase. Moreover, the profile of the degree of coherence takes the Gaussian profile when the propagation distance is longer or turbulence atmospheric is stronger. Furthermore, the results reveal that the corresponding beam spreads faster with a larger propagation distance, lower spatial coherence, and high‐strength turbulence. This study also concludes from the results that the beam is affected more when its propagation is near the jet engine exhaust, which means that this latter has a significant impact.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Propagation Characteristics of a Partially Coherent Gaussian Schell‐model Array Vortex Beam in the Joint Turbulence Effect of a Jet Engine and Atmosphere

Nabil,

Balhamri,

Bayraktar

et al. 2023

Annalen der Physik

View full text Add to dashboard Cite

show abstract

“…To tackle these challenges, researchers have found that altering beam coherence could mitigate turbulence effects. Based on the extended Huygens-Fresnel integral and the power spectrum of oceanic turbulence [3], this research area has garnered significant attention from the academic community, leading to diverse achievements, including studies on partially coherent laser beams [4][5][6] and array beams [7][8][9], among other notable studies.…”

Section: Introductionmentioning

confidence: 99%

Transmission Characteristics and Spatial Coherence of Partially Coherent Light-Emitting Diode Array in the Ocean

Miao,

Han,

Wang

et al. 2023

Photonics

View full text Add to dashboard Cite

Underwater LED light sources are commonly implemented in array configurations with a wide-angle field of view, primarily catering to high-speed communication within a few meters. To increase transmission distance and mitigate oceanic turbulence effects, this paper focuses on the spatial coherence analysis of narrow-beam partially coherent light-emitting diode (PCLED) arrays, examining their average light intensity distribution, beam width, and spatial coherence during oceanic transmission. Based on the extended Huygens–Fresnel integral, the optical field models and spatial characteristics of the radial PCLED array are derived under oceanic conditions, considering parameters such as water attenuation coefficient, kinetic energy dissipation rate, temperature dissipation rate, temperature-to-salinity ratio, as well as the radial filling factor and the sub-beam spatial coherence length of the light source at different transmission distances. The simulations show that, as the spatial coherence length of the sub-beam decreases from hundreds to a few micrometers, the combining distance of the beam arrays also decreases. This reduction in coherence results in the average light intensity distribution degrading into a Gaussian-like distribution, with a significant five-fold decrease in peak intensity. Furthermore, the width of the array spreads, starting from distances of 7 m and 0 m, respectively. The radial PCLED beam array, with its sub-beam spatial coherence length inside micrometers, possesses inherent characteristics that suppress turbulence effects and has future extensive possibilities in the ocean.

show abstract

Propagation of a radial phase-locked partially coherent elegant Laguerre–Gaussian beam array in non-Kolmogorov medium

et al. 2019

View full text Add to dashboard Cite

Radial Gaussian-Schell-model array beams in oceanic turbulence

Cited by 11 publications

References 28 publications

Propagation Characteristics of a Partially Coherent Gaussian Schell‐model Array Vortex Beam in the Joint Turbulence Effect of a Jet Engine and Atmosphere

Propagation Characteristics of a Partially Coherent Gaussian Schell‐model Array Vortex Beam in the Joint Turbulence Effect of a Jet Engine and Atmosphere

Transmission Characteristics and Spatial Coherence of Partially Coherent Light-Emitting Diode Array in the Ocean

Propagation of a radial phase-locked partially coherent elegant Laguerre–Gaussian beam array in non-Kolmogorov medium

Contact Info

Product

Resources

About