Patent ID: 7617060

Claim:
An adaptive optics system comprising: a deformable mirror configured to receive an input beam with an aberrated wavefront and to reflect the input beam to a Shack-Hartmann wavefront sensor array; the Shack-Hartmann wavefront sensor array configured to receive the input beam from the deformable mirror and to generate a plurality of sub-images from the input beam; and a processor configured to: measure, for each sub-image, two linear coefficients corresponding to a local wavefront aberration of the sub-image; estimate, for each sub-image, three quadratic coefficients corresponding to the local wavefront aberration of the sub-image; reconstruct the aberrated wavefront of the input beam based on the measured linear coefficients and the estimated quadratic coefficients; and provide control signals based upon the reconstructed wavefront to the deformable mirror to mitigate aberrations in the input beam.