Adaptive Phase Distortion Correction in Strong Speckle-Modulation Conditions
Document Type
Article
Publication Date
12-15-2002
Publication Source
Optics Letters
Abstract
We introduce beam-quality metrics for adaptive wave-front control that permit estimation of the degree of laser beam energy concentration on a remotely located extended object based upon the backscattered wave intensity distribution at the receiver. A 37-control-channel adaptive optics system with phase correction of the output wave capable of operating in the presence of speckle-field-induced strong intensity modulation is presented. System operation is based on optimization of the speckle-field-based metric by the stochastic parallel gradient descent technique. Results demonstrate that adaptive wave-front correction using speckle-field-based beam-quality metrics can significantly improve laser beam concentration on extended objects.
Inclusive pages
2155-2157
ISBN/ISSN
0146-9592
Copyright
Copyright © 2002, Optical Society of America
Publisher
Optical Society of America
Volume
27
Issue
24
Peer Reviewed
yes
eCommons Citation
Vorontsov, Mikhail and Carhart, Gary W., "Adaptive Phase Distortion Correction in Strong Speckle-Modulation Conditions" (2002). Electro-Optics and Photonics Faculty Publications. 111.
https://ecommons.udayton.edu/eop_fac_pub/111
COinS
Comments
One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
Permission documentation on file.