Demonstration of Adaptive Optics Compensation for Emulated Atmospheric Turbulence in a Two-Orbital-Angular-Momentum Encoded Free-Space Quantum Link at 10 Mbits/s

We experimentally demonstrate adaptive-optics compensation of emulated atmospheric turbulence for an OAM-based quantum communication link with a classical Gaussian beam used as probe. The turbulence-induced quantum-symbol-error-rate is reduced by ≈ 76 % with the compensation.