12 September 2005 Optical testbed for comparative analysis of wavefront sensors
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Abstract
An optical testbed has been developed for the comparative analysis of wavefront sensors based on a modified Mach Zender interferometer design. This system provides simultaneous measurements of the wavefront sensors on the same camera by using a common aberrator. The initial application for this testbed was to evaluate a Shack-Hartmann and Phase Diversity wavefront sensors referenced to a Mach-Zender interferometer. In the current configuration of the testbed, aberrations are controlled using a liquid crystal spatial light modulator, and corrected using a deformable mirror. This testbed has the added benefit of being able to train the deformable mirror against the spatial light modulator and evaluate its ability to compensate the spatial light modulator. In the paper we present results from the wavefront sensors in the optical testbed.
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Jonathan Andrews, Jonathan Andrews, Scott Teare, Scott Teare, Sergio Restaino, Sergio Restaino, Christopher Wilcox, Christopher Wilcox, David Wick, David Wick, Hai Xiao, Hai Xiao, Jim Schwiegerling, Jim Schwiegerling, } "Optical testbed for comparative analysis of wavefront sensors", Proc. SPIE 5892, Free-Space Laser Communications V, 589221 (12 September 2005); doi: 10.1117/12.649559; https://doi.org/10.1117/12.649559
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