部分相干椭圆涡旋光在湍流下的相干特性演化

Coherent Property Evolution of Partially Coherent Elliptical Vortex Beam Propagation Through Turbulence

基于广义惠更斯-菲涅耳定理,对部分相干椭圆涡旋光在各向异性非Kolmogorov湍流下光谱密度、相干度及相干涡旋的演变进行研究,其中重点探讨相干涡旋作为部分相干涡旋光束的重要特性。研究发现,椭圆率、相干长度及湍流参数均影响守恒距离,且部分相干椭圆涡旋光在传输过程中新生的相干涡旋点比部分相干圆涡旋光新生的相干涡旋点更易分离。

Based on the generalized Huygens-Fresnel principle,the spectral density,degree of coherence,and the coherent vortex of partially coherent elliptical vortex beam propagation through anisotropic non-Kolmogorov turbulence are studied.Among them,we focus on the important properties of coherent vortex beams as partially coherent vortex beams.It is found that the elliptic rate,coherence length,and turbulence parameters all have influences on the conservation distance.Moreover,it is easier to separate the newly generated coherent vortex points of partially coherent elliptical vortex beams than that of partially coherent circular vortex beams.