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Fig. 3.

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Top: 120 iterations of pair-wise sensing and stroke minimization (left), starting from a pre-modulated coronagraphic image shown in the embedded plot. The loop converges after 70–80 iterations and yields an average contrast of 2.5 × 10−8 from 6–10 λ/DLS, using a monochromatic source at 638 nm (right). The two DH images are shown on the same scale. Bottom: DM surface commands applied to continuous DM1 (in-pupil, left) and DM2 (out-of-pupil, right) for the best-contrast DH solution in the top right at iteration 120. The segmented DM in this setup is statically set to its best flat position throughout the control loop.

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