Acta Optica Sinica, Volume. 42, Issue 20, 2026002(2022)

Circular Airy Amplitude Modulation and Its Optimization for Propagation Characteristics in Turbulence

Zeyu Zhou1, Xiuhua Yuan1、*, and Feng Zhou2
Author Affiliations
  • 1School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Hubei , China
  • 2Key Laboratory of Hunan Province on Information Photonics and Freespace Optical Communications, School of Information Science and Engineering, Hunan Institute of Science and Technology, Yueyang 414006, Hunan ,China
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    Figures & Tables(13)
    Effect of scaling factor on relative center light intensity varying with propagation length. (a) lcr→∞; (b) lcr =5 cm
    Effect of beam radius on relative center light intensity varying with propagation length. (a) lcr→∞; (b) lcr=5 cm
    Side views of PCCAB varying with different coherence length propagating in vacuum. (a) lcr→∞; (b) lcr=0.100 mm;(c) lcr=0.050 mm; (d) lcr=0.020 mm; (e) lcr=0.010 mm; (f) lcr=0.005 mm
    Effect of coherence length on relative center light intensity varying with propagation length (α=1 cm and w0=10 cm)
    Evolution of light intensity of PCCAB and relative center light intensity in different turbulence environment (α=1 cm and w0=10 cm). Light intensity for (a)-(e) lcr→∞ and (g)-(k) lcr→5 cm; (f)(l) relative center light intensity varying with propagation length in different turbulence environment
    On-axis scintillation index varying with propagation length. (a)Cn2=10-16m2/3; (b)Cn2=10-13m2/3
    Scintillation index on focus point varying with propagation length
    Aperture scintillation index on focus plane
    Experimental setup for PCCAB generation and propagation in turbulent atmosphere
    Results of PCCAB generation in experiment. (a) Measured spot distribution; (b) contrast between generated beam profile and ideal profile
    Beam profiles of PCCAB and GB after propagation. (a) PCCAB; (b) GB
    Scintillation indices of GB and PCCAB varying with turbulence strength. (a) Beam center scintillation indices; (b) 3 mm aperture-averaged scintillation indices
    • Table 1. Measurement results of beam radius of experimentally generated PCCAB with different α

      View table

      Table 1. Measurement results of beam radius of experimentally generated PCCAB with different α

      Beam typeRadius /mm
      GB34.0
      PCCAB (α=6.1 mm)4.8
      PCCAB (α=6.6 mm)3.9
      PCCAB (α=7.0 mm)3.5
      PCCAB (α=7.2 mm)3.0
      PCCAB (α=7.5 mm)3.1
      PCCAB (α=7.9 mm)3.8
      PCCAB (α=8.6 mm)4.7
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    Zeyu Zhou, Xiuhua Yuan, Feng Zhou. Circular Airy Amplitude Modulation and Its Optimization for Propagation Characteristics in Turbulence[J]. Acta Optica Sinica, 2022, 42(20): 2026002

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    Paper Information

    Category: Physical Optics

    Received: Mar. 16, 2022

    Accepted: Apr. 29, 2022

    Published Online: Oct. 18, 2022

    The Author Email: Yuan Xiuhua (yuanxh@hust.edu.cn)

    DOI:10.3788/AOS202242.2026002

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