Elder Henry F, Sprangle Phillip
Opt Lett. 2022 Jul 15;47(14):3447-3450. doi: 10.1364/OL.457709.
We analyze the effects of atmospheric turbulence on the mode power spectrum of beams carrying orbital angular momentum represented by Laguerre-Gauss (LG) modes. For an input (0, m) LG mode, we calculate the power transferred to other modes (0, m') due to turbulence. The analysis is validated against split-step beam propagation simulations and shows agreement into the strong turbulence regime. These results have applications for the design and characterization of free-space laser communication systems.
我们分析了大气湍流对携带由拉盖尔 - 高斯（LG）模式表示的轨道角动量的光束模式功率谱的影响。对于输入的（0，m）LG模式，我们计算了由于湍流转移到其他模式（0，m'）的功率。该分析通过分步光束传播模拟得到验证，并显示在强湍流区域具有一致性。这些结果可应用于自由空间激光通信系统的设计和特性表征。
