Abstract
A new approach to wave-front sensing for adaptive optics systems is presented. The method, which explicitly accounts for measurement errors, is based on a phase-retrieval algorithm whose performance with respect to trapping and stagnation problems is improved by use of a suitable mathematical formulation. The algorithm allows the determination of the expansion coefficients of the wave front in terms of Zernike polynomials. A numerical analysis shows the effectiveness of the algorithm even when the maximum optical path disturbance value is greater than two wavelengths and the measurement error is quite significant.
© 1997 Optical Society of America
Full Article | PDF ArticleMore Like This
Claude Roddier and François Roddier
J. Opt. Soc. Am. A 10(11) 2277-2287 (1993)
Weiyao Zou and Jannick P. Rolland
J. Opt. Soc. Am. A 22(5) 938-951 (2005)
Brent L. Ellerbroek, Luc Gilles, and Curtis R. Vogel
Appl. Opt. 42(24) 4811-4818 (2003)