Abstract
Based on the extended Huygens–Fresnel principle, the analytical expressions for partially coherent four-petal Gaussian vortex beams propagating in oceanic turbulence are obtained, and the influence of the coherence length, beam order N, topological charge M and oceanic turbulence parameters on the evolution properties of beams are discussed in detail using numerical examples. The results show that the beam will evolve into a Gauss-like beam rapidly with decreasing coherence length and oceanic parameters and , or increasing oceanic parameter in the far field due to the influence of the coherence length and oceanic turbulence.
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