Geometric-Configuration Modulation: A Novel Free-Space Optical Communication Paradigm for $D\mathrm{/}{r}_0\sim 5$ Turbulence Resistance

We propose Geometric-Configuration Modulation (GM), a novel AO-free FSO paradigm utilizing multi-source geometric configuration encoding and active correlative decoding. GM demonstrates exceptional resistance to strong atmospheric turbulence ($D\mathrm{/}{r}_0\sim 5$) over a 1.2 m link in preliminary experiments.