Propagation and self-healing properties of Lommel-Gaussian beam through atmospheric turbulence
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1. China Academy of Space Technology, Xi'an 710100, China;2. Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China;3. Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Institute of Modern Optics, Nankai University, Tianjin 300350, China;4. Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 519000, China

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    Abstract:

    The superposition of basic non-diffracting beams triggered new research hotspots lately, laying opportunities for long-distance wireless optical communication. The Lommel-Gaussian (LMG) beam formed by the superposition of Bessel-Gaussian light not only possesses non-diffraction feature, but also has tunable symmetry. With the help of Poynting vector analysis, we observed a smaller radial energy flow component during the propagation of the high order symmetrical LMG beam, which allows it to maintain the original beam profile over long distance. Thanks to the energy oscillation of the mainlobe and sidelobes, the mainlobe blocked by the symmetrical LMG beam can be restored. Also, the random phase screen with angular spectrum method is used to describe the beam behaviors in turbulence. The results show that the symmetry LMG is preferred in free space optical communication, and the asymmetric LMG performs poorly due to asymmetric energy transfer.

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CHEN Xiang, YUAN Yabo, YAN Baoluo, ZHANG Ruoyu, LIU Haifeng, LU Zehui, LIU Bo. Propagation and self-healing properties of Lommel-Gaussian beam through atmospheric turbulence[J]. Optoelectronics Letters,2021,17(9):572-576

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History
  • Received:January 18,2021
  • Revised:January 29,2021
  • Online: July 09,2021
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