Double deformable mirrors' control based on voltage decoupling for adaptive optics system

The paper presents a control algorithm based on double deformable mirrors' (DM) voltage decoupling for an adaptive optics system. In the method there includes two DMs, and one DM has large stroke, and another has high spatial frequency. This paper presents the theoretic model about DM's voltage decoupling, designs control system that uses inertial element, and analyzes the performance on the control algorithm. Simulation and experimental results indicate the method can effectively correct aberrations that include large-scale low order aberrations and high spatial frequency aberrations in adaptive optics system at the same time, and improve the AO control system's performance.