Effect of multiple deformable mirrors in broadband high-contrast coronagraphs

Chris de Jonge; Pierre Baudoz; Raphaël Galicher; Robert Huisman; Reynier Peletier; Bayu Jayawardhana

doi:10.1117/12.2313677

11 July 2018 Effect of multiple deformable mirrors in broadband high-contrast coronagraphs

Chris de Jonge, Pierre Baudoz, Raphaël Galicher, Robert Huisman, Reynier Peletier, Bayu Jayawardhana

Proceedings Volume 10703, Adaptive Optics Systems VI; 107035D (2018) https://doi.org/10.1117/12.2313677
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

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.

Citation Download Citation

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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