Acta Photonica Sinica, Volume. 47, Issue 12, 1201002(2018)

Propagation Characteristics of Bessel-Gaussian Beam in Anisotropic Atmosphere

SUN Ri-dong1、*, GUO Li-xin1, CHENG Ming-jian1,2, YAN Xu1, and LI Jiang-ting1
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  • 1[in Chinese]
  • 2[in Chinese]
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    The multiple random phase screen simulation method is used to simulate the anisotropic turbulent atmosphere and Bessel-Gaussian beam in intensity distribution, the on-axis scintillation and beam wander. The effects of anisotropic turbulence parameters and wave source parameters on the propagation quality of Bessel-Gasuuain beam are analyzed. The results show that the intensity distribution of Bessel-Gaussian beam in anisotropic turbulent atmosphere is related to the off-axis distance. Only the intensity value at the first ring decreases monotonously, while the intensity value at the other secondary rings increases first and then decreases. The on-axis scintillation index of the Bessel-Gaussian beam at close range decreases with the increase of the waveform parameter, and there is a trend of first rising, then falling and then rising with the increase of beam width. This phenomenon is related to the beam width of Bessel-Gaussian beam. The beam wander decreases with increases of the waveform parameter, the number of orbital angular momentum, the wavelength and the beam width. However, at a long distance, its on-axis scintillation index and beam wander effect are opposite to that of near distance, which is consistent with the sudden increase of the width of Bessel-Gaussian beam. The wander effect of Bessel-Gaussian beam in anisotropic turbulent atmosphere is significantly less than that in isotropic turbulence atmosphere, and the result even larger than Laguerre-Gaussian beam at long distance.

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    SUN Ri-dong, GUO Li-xin, CHENG Ming-jian, YAN Xu, LI Jiang-ting. Propagation Characteristics of Bessel-Gaussian Beam in Anisotropic Atmosphere[J]. Acta Photonica Sinica, 2018, 47(12): 1201002

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    Paper Information

    Received: Jun. 15, 2018

    Accepted: --

    Published Online: Jan. 10, 2019

    The Author Email: Ri-dong SUN (RDSun_xidian@163.com)

    DOI:10.3788/gzxb20184712.1201002

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