Integration and test of the first Light AO system for LBT
Anno: 2004
Autori: Esposito S., Tozzi A., Puglisi A:, Pinna E., Stefanini P., Giorgetti G., Camiciottoli F., Salinari P., Bianchi P., Storm J.
Affiliazione autori: INAF Ossservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125 Firenze, Italy;
Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy;
Astrophysikalisches Institute Potsdam, An de Sternwarte 16, 14482 Potsdam Germany
Abstract: The paper describes the single conjugate AO system called WLBT to be mounted at LBT in late summer 2004. The WLBT is part of the Acquisition, Guiding & Wavefront sensing unit (AGW)(1) attached to the front bent Gregorian foci derotator. The two key features of this system are the use of a pyramid wavefront sensor with variable sampling between 30×30 and 5×5 sub apertures plus the use of an adaptive secondary mirror having 672 actuators as wavefront corrector. The AO system is mainly working as atmospheric disturbance correction system in the near infrared (J,H and K band). However due to the large number of actuators and sub apertures, it can obtain good performance even in R and I band. The paper reports about development and integration of the system final unit in the lab. Then some initial tests aimed to do a system characterization are reported. The results we obtained are used to give an estimation of the performance that the system can reach at the telescope in terms of limiting magnitude.
Giornale/Rivista: PROCEEDINGS OF SPIE
Volume: 5490 Da Pagina: 228 A: 235
Parole chiavi: Adaptive optics systems; Pyramid wavefront sensor; Adaptive secondary mirror; LBT; AGWDOI: 10.1117/12.551724Citazioni: 6dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui