GREGOR 3CAO real-time movies

Compensating cooktop turbulence with 3 DMs

Left: uncompensated cooktop turbulence
Right: MCAO mode (0, 8, 25 km) Download MP4 video

Compensating "mirror turbulence"

Multiple wavefront modes are added with sinoidal amplitudes to the adaptive mirrors outside of the control loop.
Tip-tilt control, pupil DM control, and DM8km control are switched on one after the other.
Left column: Off-Axis WFS (top), On-Axis WFS (bottom)
Right column: Mirror actuator values Download MP4 video