  A high speed free-space optical communication system capable of self-bending
signal transmission around line-of-sight obstacles is proposed and
demonstrated. Airy beams are generated and controlled to achieve different
propagating trajectories, and the signal transmission characteristics of these
beams around the obstacle are investigated. Our results confirm that, by
optimising their ballistic trajectories, Airy beams are able to bypass
obstacles with more signal energy and thus improve the communication
performance compared with normal Gaussian beams.
