研究目的
Investigating the properties of a circular Airy beam array carrying OAM propagating in turbulent atmosphere, focusing on the role of the number of array elements in the formation of the OAM modes and the preservation of phase purity.
研究成果
The numerical simulations demonstrate that the appropriately chosen number of an Airy beam array elements is necessary to format an OAM modes. Compared with a single Airy vortex beam, the phase purity of the array vortex beam propagating in the turbulent atmosphere is significantly preserved.
研究不足
The study is based on numerical simulations, and the practical implementation and experimental validation of the findings are not discussed.
1：Experimental Design and Method Selection:
The study employs multiple-phase-screen numerical simulations to explore the influence on OAM modes induced by atmospheric turbulence. The modified Von Kármán spectrum is utilized to develop the refractive-index fluctuations.
2：Sample Selection and Data Sources:
The optical field of the j-th Airy beam array beamlet at the source plane is modeled, and the phased-locked coherent Airy array beam in the transmitter plane is expressed mathematically.
3：List of Experimental Equipment and Materials:
Not explicitly mentioned in the provided text.
4：Experimental Procedures and Operational Workflow:
The phase fluctuations of turbulent atmosphere are expressed and simulated to analyze the performance of the Airy array vortex and single Airy vortex beams.
5：Data Analysis Methods:
The far-field intensity and spiral phase distributions are plotted to analyze the performance of the beams propagating through turbulent atmosphere.
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