Subaru Telescope LGSAO: overview of expected performance

Authors :: Yosuke Minowa
Hideki Takami
Yukiko Kamata
Naruhisa Takato
Stephen Colley
Michael Eldred
Shin Oya
Masanori Iye
Masayuki Hattori
Makoto Watanabe
Yoshihiko Saito
Olivier Guyon
Celia Blain
Yutaka Hayano
Nobuo Arimoto
Thomas J. Kane
Naoto Kobayashi
Miwa Goto
Source :: Advancements in Adaptive Optics.
Publication Year :: 2004
Publisher :: SPIE, 2004.
Abstract: The Subaru Telescope LGSAO system is a 188 elements curvature AO system currently under construction, and scheduled to have first light in March 2006 for the Natural Guide Star mode and March 2007 for the Laser Guide Star mode. A particularity of this system will be to perform curvature wavefront sensing with several extra-pupil distances, which significantly improves the closed-loop performance. An overview of the predicted performance of the system is given for Natural Guide Star and Laser Guide Star modes.