CuRe - A new wavefront reconstruction method for SH-WFS measurements

The AAO (Austrian Adaptive Optics) team is involved in developing wavefront reconstructors for SHand Pyramid-WFS measurements utilizing the mathematical properties of the forward operators for these wavefront sensors. We focus mainly on direct reconstructors with complexity O(n) (where n denotes the number of active subapertures of the WFS) to make the reconstruction algorithms scalable for large telescopes. The Cumulative Reconstructor (CuRe) has been developed to reconstruct wavefronts φ from Shack-Hartmann sensor measurements sx and sy where