Average Intensity of a Laguerre—Gaussian Vector Vortex Beam through Inhomogeneous Atmospheric Turbulence
We investigate the evolution properties of a partially coherent Laguerre–Gaussian vector vortex (LGVV) beam through inhomogeneous atmospheric turbulence. Analytical formulae for the elements of a cross-spectral density matrix of a partially coherent LGVV beam propagating in turbulence are derived wi...
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/11/1189 |
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| author | Kai Huang Yonggen Xu Yuqiang Li |
| author_facet | Kai Huang Yonggen Xu Yuqiang Li |
| author_sort | Kai Huang |
| collection | DOAJ |
| description | We investigate the evolution properties of a partially coherent Laguerre–Gaussian vector vortex (LGVV) beam through inhomogeneous atmospheric turbulence. Analytical formulae for the elements of a cross-spectral density matrix of a partially coherent LGVV beam propagating in turbulence are derived with the help of the extended Huygens–Fresnel principle. Our outcomes demonstrate that the normalized initial profile of a partially coherent beam with concentric dark rings gradually evolves into a Gaussian-like beam profile in turbulence. We also find that the beam is emitted at a large zenith angle and quickly converts to a Gaussian-like beam. Furthermore, it is also shown that a propagation beam with a large topological charge has a stronger ability to resist atmospheric turbulence. In order to confirm our numerical results, we combine the complex screen method and multi-phase screen method to simulate the propagation of a partially coherent LGVV beam in atmospheric turbulence. It is indicated that the simulation results are in good agreement with theoretical predictions. Our results will pave the way for the development of free-space optical communications and remote sensing. |
| first_indexed | 2024-03-09T16:31:50Z |
| format | Article |
| id | doaj.art-e018a8e8662a48648321173f35ca3f1c |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T16:31:50Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-e018a8e8662a48648321173f35ca3f1c2023-11-24T15:01:18ZengMDPI AGPhotonics2304-67322023-10-011011118910.3390/photonics10111189Average Intensity of a Laguerre—Gaussian Vector Vortex Beam through Inhomogeneous Atmospheric TurbulenceKai Huang0Yonggen Xu1Yuqiang Li2College of Mathematics and Physics, Leshan Normal University, Leshan 614000, ChinaDepartment of Physics, School of Science, Xihua University, Chengdu 610039, ChinaGroup of Applied Astronomy Research, Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, ChinaWe investigate the evolution properties of a partially coherent Laguerre–Gaussian vector vortex (LGVV) beam through inhomogeneous atmospheric turbulence. Analytical formulae for the elements of a cross-spectral density matrix of a partially coherent LGVV beam propagating in turbulence are derived with the help of the extended Huygens–Fresnel principle. Our outcomes demonstrate that the normalized initial profile of a partially coherent beam with concentric dark rings gradually evolves into a Gaussian-like beam profile in turbulence. We also find that the beam is emitted at a large zenith angle and quickly converts to a Gaussian-like beam. Furthermore, it is also shown that a propagation beam with a large topological charge has a stronger ability to resist atmospheric turbulence. In order to confirm our numerical results, we combine the complex screen method and multi-phase screen method to simulate the propagation of a partially coherent LGVV beam in atmospheric turbulence. It is indicated that the simulation results are in good agreement with theoretical predictions. Our results will pave the way for the development of free-space optical communications and remote sensing.https://www.mdpi.com/2304-6732/10/11/1189partially coherent LGVV beaminhomogeneous atmospheric turbulencezenith angleaverage intensity |
| spellingShingle | Kai Huang Yonggen Xu Yuqiang Li Average Intensity of a Laguerre—Gaussian Vector Vortex Beam through Inhomogeneous Atmospheric Turbulence Photonics partially coherent LGVV beam inhomogeneous atmospheric turbulence zenith angle average intensity |
| title | Average Intensity of a Laguerre—Gaussian Vector Vortex Beam through Inhomogeneous Atmospheric Turbulence |
| title_full | Average Intensity of a Laguerre—Gaussian Vector Vortex Beam through Inhomogeneous Atmospheric Turbulence |
| title_fullStr | Average Intensity of a Laguerre—Gaussian Vector Vortex Beam through Inhomogeneous Atmospheric Turbulence |
| title_full_unstemmed | Average Intensity of a Laguerre—Gaussian Vector Vortex Beam through Inhomogeneous Atmospheric Turbulence |
| title_short | Average Intensity of a Laguerre—Gaussian Vector Vortex Beam through Inhomogeneous Atmospheric Turbulence |
| title_sort | average intensity of a laguerre gaussian vector vortex beam through inhomogeneous atmospheric turbulence |
| topic | partially coherent LGVV beam inhomogeneous atmospheric turbulence zenith angle average intensity |
| url | https://www.mdpi.com/2304-6732/10/11/1189 |
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