The following two folders contain the experimental data obtained in this study——:"Annular Channel Eigenmodes: A Physical-Layer Approach to Suppressing OAM Modal Crosstalk" 1. The folder named 'data_image' contains light field intensity data along ACEs and POVs. The data were acquired using a CCD to capture their intensity distribution, serving as the basis for calculating the distribution of different channels. The numerical prefix of each .tif file indicates the target channel range (in millimeters). 2. The folder named 'simulation' contains MATLAB programs for simulating ACEs, as well as all the data from the simulation figures, including pupil, crosstalk, focal plane intensity, etc. The processing details are described in the main text. 3. The folder named 'experimental', it contains the processing of TIFF images acquired by the CCD, including the processing of ACEs and POVs light fields, as well as the phase diagrams loaded onto the SLM. The data processing code is also included.