Single adjuster deformable mirror with four contact points for simultaneous correction of astigmatism and defocus.
We show that a deformable mirror with four point actuators is suitable for the simultaneous correction of astigmatism and defocus in a given optical system by adequately choosing the relative position of the actuators. An analytical model is developed that describes adequately the mirror deformation as a function of actuator position, showing that it is possible to continuously tune the weight of each aberration. Experimental measurements with a single adjuster deformable mirror assembly confirm the validity of the model.
Figueira
Gonçalo
G
Wemans
João
J
Pires
Hugo
H
Lopes
Nelson
N
Cardoso
Luís
L