Adaptive optics implementation with a Fourier reconstructor
Applied Optics, Vol. 46, Issue 4, pp. 574-580 (2007)
http://dx.doi.org/10.1364/AO.46.000574
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Abstract
Adaptive optics takes its servo feedback error cue from a wavefront sensor. The common Hartmann–Shack spot grid that represents the wavefront slopes is usually analyzed by finding the spot centroids. In a novel application, we used the Fourier decomposition of a spot pattern to find deviations from grid regularity. This decomposition was performed either in the Fourier domain or in the image domain, as a demodulation of the grid of spots. We analyzed the system, built a control loop for it, and tested it thoroughly. This allowed us to close the loop on wavefront errors caused by turbulence in the optical system.
© 2007 Optical Society of America
OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(100.2650) Image processing : Fringe analysis
(100.5070) Image processing : Phase retrieval
ToC Category:
Image Processing
History
Original Manuscript: April 13, 2006
Revised Manuscript: October 3, 2006
Manuscript Accepted: October 3, 2006
Citation
Oded Glazer, Erez N. Ribak, and Leonid Mirkin, "Adaptive optics implementation with a Fourier reconstructor," Appl. Opt. 46, 574-580 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-4-574
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