We experimentally demonstrate turbulence mitigation by adaptive optics for a 400-Gbit/s free-space link multiplexing four Laguerre Gaussian modes using both radial and azimuthal indices. The turbulence-induced power loss and crosstalk are reduced by ~10 dB and ~18 dB, respectively.
|Airbus Institute for Engineering Research
|Basic Research Office of the Assistant Secretary of Defense
|Office of Naval Research
|Astrophysics Science Division
|Multidisciplinary University Research Initiative
|Defense Security Cooperation Agency