Channel Capacity of the OAM-Based Free-Space Optical Communication Links With Bessel–Gauss Beams in Turbulent Ocean
An orbital angular momentum (OAM)-mode transmission model of Bessel–Gauss (BG) beams is established to derive an analytic expression of the channel information capacity of an OAM-based free-space optical (FSO) communication system with non-diffraction BG beams in weak turbulent ocean. Eff...
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IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7390163/ |
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| author | Mingjian Cheng Lixin Guo Jiangting Li Yixin Zhang |
| author_facet | Mingjian Cheng Lixin Guo Jiangting Li Yixin Zhang |
| author_sort | Mingjian Cheng |
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| description | An orbital angular momentum (OAM)-mode transmission model of Bessel–Gauss (BG) beams is established to derive an analytic expression of the channel information capacity of an OAM-based free-space optical (FSO) communication system with non-diffraction BG beams in weak turbulent ocean. Effects of oceanic turbulence on the channel information capacity of this communication system are discussed in detail. Numerical results show that oceanic turbulence induces an evident spread of OAM-mode transmission probability spectrum and severely affects the channel information capacity of OAM-based FSO communication systems. The influences of beam parameter <inline-formula> <tex-math notation="LaTeX">$\eta$</tex-math></inline-formula> of BG and dual BG beams on channel information capacity are contrary to each other. BG beams show significant advantages over Laguerre–Gaussian beams in mitigating the effects of turbulence and improving the performance of OAM-based FSO communication links. The effects of oceanic turbulence on the channel information capacity become stronger with the increase in oceanic turbulence parameter, rate of dissipation of mean-squared temperature, and temperature–salinity balance parameter, as well as with the decrease in the rate of dissipation of turbulent kinetic energy per unit mass of fluid. Choosing an optimum blue–green wavelength and increasing <inline-formula> <tex-math notation="LaTeX">$\eta$</tex-math></inline-formula> of the BG beam can effectively improve the performance of an OAM-based FSO communication system in turbulent ocean. |
| format | Article |
| id | doaj-art-0777aa9aee224e4baa968e2a7b3859bc |
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| issn | 1943-0655 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | IEEE |
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| series | IEEE Photonics Journal |
| spelling | doaj-art-0777aa9aee224e4baa968e2a7b3859bc2025-08-20T02:38:35ZengIEEEIEEE Photonics Journal1943-06552016-01-018111110.1109/JPHOT.2016.25188657390163Channel Capacity of the OAM-Based Free-Space Optical Communication Links With Bessel–Gauss Beams in Turbulent OceanMingjian Cheng0Lixin Guo1Jiangting Li2Yixin Zhang3School of Physics and Optoelectronic Engineering, Xidian University, Xi'an, ChinaSchool of Physics and Optoelectronic Engineering, Xidian University, Xi'an, ChinaState Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering, Xidian University, Xi'an, ChinaSchool of Science, Jiangnan University, Wuxi, ChinaAn orbital angular momentum (OAM)-mode transmission model of Bessel–Gauss (BG) beams is established to derive an analytic expression of the channel information capacity of an OAM-based free-space optical (FSO) communication system with non-diffraction BG beams in weak turbulent ocean. Effects of oceanic turbulence on the channel information capacity of this communication system are discussed in detail. Numerical results show that oceanic turbulence induces an evident spread of OAM-mode transmission probability spectrum and severely affects the channel information capacity of OAM-based FSO communication systems. The influences of beam parameter <inline-formula> <tex-math notation="LaTeX">$\eta$</tex-math></inline-formula> of BG and dual BG beams on channel information capacity are contrary to each other. BG beams show significant advantages over Laguerre–Gaussian beams in mitigating the effects of turbulence and improving the performance of OAM-based FSO communication links. The effects of oceanic turbulence on the channel information capacity become stronger with the increase in oceanic turbulence parameter, rate of dissipation of mean-squared temperature, and temperature–salinity balance parameter, as well as with the decrease in the rate of dissipation of turbulent kinetic energy per unit mass of fluid. Choosing an optimum blue–green wavelength and increasing <inline-formula> <tex-math notation="LaTeX">$\eta$</tex-math></inline-formula> of the BG beam can effectively improve the performance of an OAM-based FSO communication system in turbulent ocean.https://ieeexplore.ieee.org/document/7390163/Free-space optical (FSO) communicationorbital angular momentum (OAM)Bessel–Gauss (BG) beamsoceanic turbulenceperformance analysis |
| spellingShingle | Mingjian Cheng Lixin Guo Jiangting Li Yixin Zhang Channel Capacity of the OAM-Based Free-Space Optical Communication Links With Bessel–Gauss Beams in Turbulent Ocean IEEE Photonics Journal Free-space optical (FSO) communication orbital angular momentum (OAM) Bessel–Gauss (BG) beams oceanic turbulence performance analysis |
| title | Channel Capacity of the OAM-Based Free-Space Optical Communication Links With Bessel–Gauss Beams in Turbulent Ocean |
| title_full | Channel Capacity of the OAM-Based Free-Space Optical Communication Links With Bessel–Gauss Beams in Turbulent Ocean |
| title_fullStr | Channel Capacity of the OAM-Based Free-Space Optical Communication Links With Bessel–Gauss Beams in Turbulent Ocean |
| title_full_unstemmed | Channel Capacity of the OAM-Based Free-Space Optical Communication Links With Bessel–Gauss Beams in Turbulent Ocean |
| title_short | Channel Capacity of the OAM-Based Free-Space Optical Communication Links With Bessel–Gauss Beams in Turbulent Ocean |
| title_sort | channel capacity of the oam based free space optical communication links with bessel gauss beams in turbulent ocean |
| topic | Free-space optical (FSO) communication orbital angular momentum (OAM) Bessel–Gauss (BG) beams oceanic turbulence performance analysis |
| url | https://ieeexplore.ieee.org/document/7390163/ |
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