西华大学学报（自然科学版）2017，Vol.36Issue(1)：50-54,5.DOI:10.3969/j.issn.1673-159X.2017.01.010
部分相干空心光束在非均匀大气湍流中的传输
Propagation of Partially Coherent Hollow Gaussian Beam in Inhomogeneous Atmospheric Turbulence
摘要
Abstract
Based on the Huygens-Fresnel principle and the definition of the Wigner distribution function, the analytical expres-sion of the beam width and the far-field divergence angle for partially coherent Hollow Gaussian beam in inhomogeneous atmospheric turbulence have been derived. The propagation of PCHGB in inhomogeneous atmospheric turbulence was quantitatively analyzed and discussed. The results show that the beam width of PCHGB depends on the waist width, beam order, wavelength, coherence width, in-ner scale of the turbulence and the zenith angle in inhomogeneous turbulence. Similarly, the far-field divergence angle of PCHGB de-pends on the zenith angle, inner scale of the turbulence, coherence width and wave number in inhomogeneous turbulence. We also found that the saturation propagation distances ( SPDs) of the far-field divergence angle of PCHGB in inhomogeneous turbulence with a zenith angle of π/3 are about 0. 3 km.关键词
部分相干空心光束/非均匀大气湍流/束宽和远场发散角Key words
partially coherent HGB/inhomogeneous atmospheric turbulence/beam width and far-field divergence angle.分类
数理科学引用本文复制引用
徐勇根,杨婷,马再如,田欢欢,张笔灵..部分相干空心光束在非均匀大气湍流中的传输[J].西华大学学报（自然科学版）,2017,36(1):50-54,5.基金项目
教育部春晖计划项目 (Z2015096) （Z2015096）
四川省教育厅项目 (16ZA0160). （16ZA0160）
