  Correlated photon pairs produced by a spontaneous parametric down conversion
(SPDC) process can be used for secure quantum communication over long distances
including free space transmission over a link through turbulent atmosphere. We
experimentally investigate the possibility to utilize the intrinsic strong
correlation between the pump and output photon spatial modes to mitigate the
negative targeting effects of atmospheric beam wander. Our approach is based on
a demonstration observing the deflection of the beam on a spatially resolved
array of single photon avalanche diodes (SPAD-array).
