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Marked improvement of auto-focusing vortex beam performance in atmospheric turbulence based on the fractional system

Author

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  • Liang, Yong
  • Tan, Chao
  • Chen, Chaoyang

Abstract

To significantly improve the anti-turbulence capability of laser beams in atmospheric environments, we propose a novel conceptual scheme that integrates classical atmospheric turbulence transport model within a fractional diffraction framework. This work systematically investigates the dynamics of a newly designed autofocusing circular super-Gaussian Airyprime vortex beam (CSGAPVB) under atmospheric turbulence conditions. For better appraisal, a series of assessment methods to quantify the propagation performance of CSGAPVBs in free-space links are introduced. The results reveal that utilizing adjustable fractional diffraction effectively suppresses the beam's wander and scintillation by 99.64% and 99.62%, respectively, while substantially enhancing the signal-to-noise ratio (SNR) by up to 366.2%. The joint modulation of different diffraction effects and light source/channel parameters demonstrates exceptional controllability for beam performance, which paves a new path for stable and high-quality long-distance optical communication.

Suggested Citation

  • Liang, Yong & Tan, Chao & Chen, Chaoyang, 2026. "Marked improvement of auto-focusing vortex beam performance in atmospheric turbulence based on the fractional system," Chaos, Solitons & Fractals, Elsevier, vol. 207(C).
    • Handle: RePEc:eee:chsofr:v:207:y:2026:i:c:s0960077926001591
    DOI: 10.1016/j.chaos.2026.118018
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