Accurate recognition of orbital angular momentum (OAM) modes is a major challenge for OAM-based optical communications over atmospheric turbulence channels. The turbulence-induced distortions cause difficulties for the receiver to distinguish between adjacent OAM modes. Deep learning. such as convolutional neural networks (CNN). https://www.diegojavierfares.com/flash-find-Bushranger-Awning-2-5m-W-x-2-0m-L-2-Year-No-Fuss-Warranty-AW2000-best-save/