Dynamic modeling and identification of an adaptive optics system

Multi-input, multi-output (MIMO) control of modern adaptive optics systems requires careful modeling of the coupling between actuator influence functions and the relevant dynamics of the mirror control loop. In this paper, we present a novel approach to modeling and identification of adaptive optics systems, and demonstrate the procedure in the context of an experimental adaptive optics system. The results illustrate that the modeling captures the relevant inter-actuator couplings as well as the important MIMO dynamics of the adaptive optics system. Furthermore, the modeling approach significantly reduces the complexity of identification for the adaptive optics system.