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11 July 2018 Effect of multiple deformable mirrors in broadband high-contrast coronagraphs
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Abstract
In context of wavefront control for high-contrast coronagraphy, we present the spectral characterization of speckles generated by deformable mirrors (DMs) at various distances downstream of the pupil plane. We have measured the focal-plane electric field at 600 to 690nm of speckles generated with an in- and out-of-pupil DM on a highcontrast testbed using a self-coherent camera. These measurements are analyzed analytically and are compared to numerical end-to-end simulations of the setup. This will aid in the design of wavefront correction algorithms with multiple DMs.
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Chris de Jonge, Pierre Baudoz, Raphaël Galicher, Robert Huisman, Reynier Peletier, and Bayu Jayawardhana "Effect of multiple deformable mirrors in broadband high-contrast coronagraphs", Proc. SPIE 10703, Adaptive Optics Systems VI, 107035D (11 July 2018); https://doi.org/10.1117/12.2313677
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