Real time control zonal algorithm for adaptive optical system


I.Sergievskaya, S.Royo, J.Riu, M.Ares




An attempt was made to develop a zonal real time control algorithm for adaptive optical system based on block tridiagonal control matrix. Efficiency of a zonal approach for AOS with large number of actuators and local nature of response functions was studied using mathematical modeling and compared to classical modal least square solution and iterative methods. Calculation efficiency and residual wavefront error are examined. Turbulent media aberration was simulated using Von Karman model. Experimental realization using available 37 actuators piezoelectric DM and Shack-Hartmann wavefront sensor was performed for mathematical model validation.