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8 February 2008 High-contrast imaging testbed
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Several high-contrast imaging systems are currently under construction to enable the detection of extra-solar planets. In order for these systems to achieve their objectives, however, there is considerable developmental work and testing which must take place. Given the need to perform these tests, a spatially-filtered Shack-Hartmann adaptive optics system has been assembled to evaluate new algorithms and hardware configurations which will be implemented in these future high-contrast imaging systems. In this article, construction and phase measurements of a membrane "woofer" mirror are presented. In addition, results from closed-loop operation of the assembled testbed with static phase plates are presented. The testbed is currently being upgraded to enable operation at speeds approaching 500 hz and to enable studies of the interactions between the woofer and tweeter deformable mirrors.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
K. L. Baker, D. A. Silva, L. A. Poyneer, B. A. Macintosh, B. J. Bauman, D. Palmer, T. P. Remington, and M. A. Delgadillo-Lariz "High-contrast imaging testbed", Proc. SPIE 6888, MEMS Adaptive Optics II, 68880I (8 February 2008);


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