Abstract

Experimental results are presented on the performance of an IR multidither adaptive-optics system with rotating, extended targets. A nine-zone deformable mirror with superimposed dithers was employed at 10.6 μm with spherical metallic targets of varying roughness and diameter. The results presented include open-loop discriminants, target speckle-noise spectra, and closed-loop beam quality obtained as functions of tarparameters. Experimental results are interpreted using a simplified model for the adaptive-get and system optics system and target.

© 1979 Optical Society of America

Analytical, experimental, and computer-simulation results on the interactive effects of speckle with multidither adaptive optics systems*

S. A. Kokorowski, M. E. Pedinoff, and J. E. Pearson
J. Opt. Soc. Am. 67(3) 333-345 (1977)

Theory of multidither adaptive optical systems operating with zonal control of deformable mirrors

T. R. O’Meara
J. Opt. Soc. Am. 67(3) 318-325 (1977)

Coherent optical adaptive techniques: design and performance of an 18-element visible multidither COAT system

J. E. Pearson, W. B. Bridges, S. Hansen, T. A. Nussmeier, and M. E. Pedinoff
Appl. Opt. 15(3) 611-621 (1976)

Automatic speckle cancellation techniques for multidither adaptive optics

S. A. Kokorowski, T. R. O’Meara, R. C. Lind, and T. Calderone
Appl. Opt. 19(3) 371-381 (1980)

Effects of speckle in adaptive optical systems*

James E. Pearson, S. A. Kokorowski, and M. E. Pedinoff
J. Opt. Soc. Am. 66(11) 1261-1267 (1976)