Phase diversity has proven a viable technique for wavefront sensing but converges too slowly for real-time applications. The small wavefront changes in a closed loop system allow much more rapid convergence.
© 2011 OSA
A. Wirth, R. Gonsalves, and A. Jankevics, "Adaptive Optics Enabled Wavefront Diversity Sensing," in Imaging and Applied Optics, OSA Technical Digest (CD) (Optical Society of America, 2011), paper JTuC4.
References are not available for this paper.