SAXO+, a second-stage adaptive optics for SPHERE on VLT: optical and mechanical design concept

Eric Stadler; Emiliano Diolaiti; Laura Schreiber; Fausto Cortecchia; Matteo Lombini; Magali Loupias; Yves Magnard; Adriano De Rosa; Giuseppe Malaguti; Didier Maurel; Gianluca Morgante; Patrick Rabou; Sylvain Rochat; Filomena Schiavone; Luca Terenzi; Fabrice Vidal; Faustine Cantalloube; Eric Gendron; Raffaele Gratton; Julien Milli; David Mouillet; Gael Chauvin; François Wildi; Jean-Luc Beuzit; Anthony Boccaletti

doi:10.1117/12.2629970

29 August 2022 SAXO+, a second-stage adaptive optics for SPHERE on VLT: optical and mechanical design concept

Eric Stadler, Emiliano Diolaiti, Laura Schreiber, Fausto Cortecchia, Matteo Lombini, Magali Loupias, Yves Magnard, Adriano De Rosa, Giuseppe Malaguti, Didier Maurel, Gianluca Morgante, Patrick Rabou, Sylvain Rochat, Filomena Schiavone, Luca Terenzi, Fabrice Vidal, Faustine Cantalloube, Eric Gendron, Raffaele Gratton, Julien Milli, David Mouillet, Gael Chauvin, François Wildi, Jean-Luc Beuzit, Anthony Boccaletti

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 121854E (2022) https://doi.org/10.1117/12.2629970
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

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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Eric Stadler, Emiliano Diolaiti, Laura Schreiber, Fausto Cortecchia, Matteo Lombini, Magali Loupias, Yves Magnard, Adriano De Rosa, Giuseppe Malaguti, Didier Maurel, Gianluca Morgante, Patrick Rabou, Sylvain Rochat, Filomena Schiavone, Luca Terenzi, Fabrice Vidal, Faustine Cantalloube, Eric Gendron, Raffaele Gratton, Julien Milli, David Mouillet, Gael Chauvin, François Wildi, Jean-Luc Beuzit, and Anthony Boccaletti "SAXO+, a second-stage adaptive optics for SPHERE on VLT: optical and mechanical design concept", Proc. SPIE 12185, Adaptive Optics Systems VIII, 121854E (29 August 2022); https://doi.org/10.1117/12.2629970

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