SAXO+, a Second-Stage Adaptive Optics for SPHERE on VLT: Optical and Mechanical Design Concept
Adaptive Optics Systems VIII(2022)
Abstract
SPHERE+ is a proposed upgrade of the SPHERE instrument at VLT, which will boost the current performances of detection and characterization of exoplanets and disks, and will serve as a demonstrator for the future planet finder (PCS) of the European ELT. The performance gain will be delivered by a second-stage AO module (SAXO+), including a dedicated wavefront sensor and deformable mirror to remove the residual wavefront errors left by the primary AO loop. This paper is focused on the optical and mechanical implementation of SAXO+ and describes the baseline design concept, selected from trade-off analysis of different options.
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Key words
Extreme Adaptive Optics,Optical Design,Mechanical Design,SPHERE,VLT,ELT,instrument upgrades,SAXO
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