Open AccessOrientation dependent wavefront correction system under grazing incidence
Author(s) -
Xiaohong Ma,
Lei Huang,
Mali Gong,
Qiao Xue,
Zexin Feng,
Ping Yan,
Qiang Liu
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.020497
Subject(s) - zernike polynomials , wavefront , optics , deformable mirror , orientation (vector space) , adaptive optics , physics , beam (structure) , actuator , laser beams , laser , mathematics , computer science , geometry , artificial intelligence
Making use of the stretching effect of grazing incident laser beam, a novel method of wavefront correction was promoted. Without adding any extra beam expanding components, aberrations of wavefront could achieve satisfying correction by two grazing reflections along orthogonal directions on the deformable mirrors. The stretching effect expanded the beam size along grazing direction and the orientation dependent varying aberrations were well compensated as more actuators took effect in the correction process. Analysis showed that the fitting coefficient of all the first 30 order Zernike polynomials could be controlled within 5% by this method.