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Fig. 9.

image

Injected modal offset z0 (green) compared with the average modal amplitude of the DM (wavefront) measured with (orange) and without (blue) optical gain correction. Left: case with injected disturbance equivalent to 0.8″ of seeing. The lower modes (1–4) are not reported, being affected by the correction of the optical system alignment drifts. Right: case with injected disturbance equivalent to 1.2″ of seeing.

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