IAC will be developing a new Transportable Optical Ground Station (TOGS). It is a telescope that is intended to be used for quantum key distribution in a number of events. Using AO for free-space propagation stabilises the optical signal on a detector significantly, and maximises the received signal by returning near-diffraction limited performance to the optical system and stabilising the channel transmission and noise. The goal of this thesis will be to design a controller for an AO system that will be used for the new Transportable Optical Ground Station (TOGS) of IAC.