A new method of calculating the orbital angular momentum spectra of Laguerre–Gaussian beams in channels with atmospheric turbulence

Cui Xiao-zhou^{1, 2}, Yin Xiao-li^{1, 2, 3, †}, Chang Huan^{1, 2}, Zhang Zhi-chao^{1, 2}, Wang Yong-jun^{1, 2, 3}, Wu Guo-hua^{1, 3}

(color online) OAM spectra for l₀ = 5, 10, 15, 20 under different levels of turbulence: (a) weak/medium turbulence, ; (b) strong turbulence, .