A preliminary overview of the multicon jugate adaptive optics module for the E-ELT

摘要

The multi-conjugate adaptive optics module for the European Extremely Large Telescope has to provide a corrected field of medium to large size (up to 2 arcmin), over the baseline wavelength range 0.8-2.4 μm. The current design is characterized by two post-focal deformable mirrors, that complement the correction provided by the adaptive telescope; the wavefront sensing is performed by means of a high-order multiple laser guide star wavefront sensor and by a low-order natural guide star wavefront sensor. The present status of a two years study for the advanced conceptual design of this module is reported.