物理学报Issue(21)：140-144,5.DOI:10.7498/aps.62.214201
基于拉盖尔-高斯光束的通信系统在非Kolmogorov湍流中传输的系统容量
Average capacity of free-space optical systems for a Laguerre-Gaussian beam propagating through non-Kolmogorov turbulence
摘要
Abstract
The propagation of vortex beam in atmospheric turbulence is of great importance in theoretical study and practical applications. Based on the Rytov approximation and extended Huygens-Fresnel integral, the analytical expressions for the spiral spectrum of the Laguerre-Gaussian (LG) beam propagating in a slant non-Kolmogorov turbulence channel have been derived and the average capacity of free space optical system is given. The average capaticy of free space optical system is examined and the effects of exponent parameter, wavelength, zenith angle, inner scale, outer scale, and structure constant on average capacity are also analyzed. Results obtained in this paper may be benefical to optical communication.关键词
拉盖尔-高斯光束/非Kolmogorov湍流/平均容量Key words
Laguerre-Gaussian beam/non-Kolmogorov turbulence/average capacity引用本文复制引用
江月松,王帅会,欧军,唐华..基于拉盖尔-高斯光束的通信系统在非Kolmogorov湍流中传输的系统容量[J].物理学报,2013,(21):140-144,5.基金项目
国家自然科学基金(批准号:61101005)资助的课题.@@@@Project supported by the National Natural Science Foundation of China (Grant No.61101005) （批准号:61101005）
