Adaptive Optics Correction of the Wavefront Distortions Induced by Segments Misalignment in Extremely Large Telescope

Abstract

The capability of the adaptive optics to correct for the segmentation error is analyzed in terms of the residual wavefront RMS and the power spectral density of the phase. The analytical model and the end-to-end simulation give qualitatively equal results justifying the significance of the geometrical matching between segmentation geometry and the actuators/subaperture distribution of the adaptive optics. We also show that the design of the wavefront sensor is rather critical.

12 pages, 17 figures

Cited by in corpus (3)

• Magnetic liquid deformable mirrors for astronomical applications:Active correction of optical aberrations from lower-grade optics and support system
• Comparison of coronagraphs for high contrast imaging in the context of Extremely Large Telescopes
• Apodized-pupil Lyot coronagraphs: multistage designs for extremely large telescopes