Wavefront-aberration sorting and correction for a dual-deformable-mirror adaptive-optics system.
Many next-generation adaptive optics (AO) systems for vision will have two deformable mirrors (DMs) instead of one: a high-stroke, low-resolution mirror (the woofer) and a low-stroke, high-resolution mirror (the tweeter). We developed a zonal wavefront-control algorithm and validated it using simulations. Rather than separating the woofer and tweeter corrections into two independent control processes or using a modal decomposition, the algorithm we proposed uses wavefront slope measurements from a single Shack-Hartmann wavefront sensor to generate control signals for both deformable mirrors within a single zonal control. A Lagrange multiplier is chosen to integrate two DMs into a single-DM wavefront control, and a damped least-squares control is employed to suppress the correlation between the two DMs.
Zou
Weiyao
W
School of Optometry, Indiana University, Bloomington, IN 47405, USA. zouw@indiana.edu
Qi
Xiaofeng
X
Burns
Stephen A
SA
D000465:Algorithms; D003198:Computer Simulation; D017076:Computer-Aided Design; D055119:Elastic Modulus; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D007909:Lenses; D015233:Models, Statistical; D008962:Models, Theoretical; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity