Phase-diversity wave-front sensing with a distorted diffraction grating.
We describe a novel wave-front sensor comprising a distorted diffraction grating, simple optics, and a single camera. A noniterative phase-diversity algorithm is used for wave-front reconstruction. The sensor concept and practical implementation are described in detail, and performance is validated against different Zernike modes and a representative atmospheric phase map.
Blanchard
P M
PM
Electronics Sector, Defence Evaluation and Research Agency, St Andrew's Road, Malvern, Worcestershire WR14 3PS, United Kingdom.
Fisher
D J
DJ
Woods
S C
SC
Greenaway
A H
AH