Increasing the sensitivity of a Shack-Hartmann sensor

Autor:	Kasper, Markus, Looze, Douglas, Hippler, Stefan, Davies, Ric, Glindemann, Andreas
Rok vydání:	2016
Předmět:	Astrophysics - Instrumentation and Methods for Astrophysics
Druh dokumentu:	Working Paper
Popis:	The Max-Planck institutes for astronomy (MPIA) and for extraterrestrial physics (MPE) run an adaptive optics (AO) system with a laser guide star at the 3.5 m telescope on Calar Alto, Spain. This system, called ALFA, produces now scientific results and works ex- cellent with natural guide stars (NGS) as faint as 13th magnitude in R-band. The ultimate goal however is to achieve similar performances with the laser guide star (LGS) which is faint and extended. We introduce the Shack-Hartmann wavefront sensor implemented in ALFA and present our efforts in increasing its sensitivity by using advanced centroiding and wavefront reconstruction algorithms. Comment: 6 pages, 12 figures, Canterbury conference on wavefront sensing and its applications, Canterbury, England, 1999
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1607.05575 Zobrazit plný text záznamu View this record from Arxiv