It is LG light wave, where l is the azimuth index of OAM, also called topological charge, and p is the radial node of the light intensity distribution. He derives the probability distribution function of measuring OAM light waves passing through atmospheric turbulence, and the atmospheric turbulence uses the Kolmogorov atmospheric turbulence model. The OAM measurement probability is directly related to obtaining the correct or incorrect measurement probability of sending a symbol, and then the rotating field correlation function and channel capacity are obtained through the derived OAM probability distribution function, and the changes of these functions with atmospheric turbulence are analyzed. In 2009, Tyler et al. analyzed the influence of atmospheric turbulence on OAM state communication [124]. The difference is that the OAM beam they use is not the commonly used LG light, but a pure vortex light wave, an OAM light wave with a constant light wave amplitude.
正在翻译中..