Aberration correction using a multi-segment mirror with feedback interferometry

A 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 conven...

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Bibliographic Details
Published in:Optics and lasers in engineering 2004, Vol.41 (1), p.113-125
Main Authors: Cheung, D.C.L, Barnes, T.H, Somervell, A.R.D, Haskell, T.G
Format: Article
Language:English
Subjects:
Aberrations
Adaptive optics
Exact sciences and technology
Feedback interferometry
Fundamental areas of phenomenology (including applications)
Geometrical optics
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Interferometers
Lenses, prisms and mirrors
Multi-segment mirror
Optical elements, devices, and systems
Optical instruments, equipment and techniques
Optics
Physics
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Summary:A 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 37 Hz for sinusoidal phase variations with amplitude of one wavelength and improves Strehl ratio significantly.
ISSN:0143-8166
1873-0302
DOI:10.1016/S0143-8166(02)00102-1