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TitleAberration correction using a multi-segment mirror with feedback interferometry
Publication TypeJournal Article
Year of Publication2004
AuthorsCheung, D.C.L., Barnes T.H., Somervell A.R.D., and Haskell T.G.
JournalOptics and Lasers in Engineering
Pagination113 - 125
Date Published2004
ISSN01438166 (ISSN)
KeywordsAberrations, Adaptive optics, Interferometry, Mirrors, Strehl ratios, Wavefronts
AbstractA novel real-time aberration correction system using feedback interferometry and a multi-segment mirror for the wavefront corrector is described. The result is a simple and high-speed adaptive optics system demonstrating that feedback interferometry may potentially be an alternative method to conventional aberration correction techniques. Its high-speed processing and simplicity makes real-time correction practical. Our results show that the system can respond up to 37Hz for sinusoidal phase variations with amplitude of one wavelength and improves Strehl ratio significantly. © 2002 Elsevier Science Ltd. All rights reserved.

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