ALFA: The MPIA/MPE* adaptive optics with a laser for astronomy project

被引：21

作者：

Hippler, S ^{[1
]}

Glindemann, A ^{[1
]}

Kasper, M ^{[1
]}

Kalas, P ^{[1
]}

Rohloff, RR ^{[1
]}

Wagner, K ^{[1
]}

Looze, DP ^{[1
]}

Hackenberg, W ^{[1
]}

机构：

[1] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

来源：

ADAPTIVE OPTICAL SYSTEM TECHNOLOGIES, PARTS 1 AND 2 | 1998年 / 3353卷

关键词：

adaptive optics; laser guide star; servo-loop control; modal correction;

D O I：

10.1117/12.321708

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The Max-Planck-Institutes for Astronomy (MPIA) and for Extraterrestrial Physics (MPE) have recently installed a laser guide star (LGS) adaptive optics (AO) system at the 3.5m telescope on Calar Alto in Spain. The AO system consists of a Shack-Hartmann sensor, a deformable mirror with 97 actuators, and a wave-front processor that allows closed loop operations of up to 1200 Hz. As a first step we closed the high order AO loop on bright natural guide stars. As a second step we closed the AO loop on a 10th magnitude artificial LGS that is created in the mesospheric sodium layer by a 3.75 Watt dye laser. This paper describes ALFA's design, operation, and upgrade plans.

引用

页码：44 / 55

页数：12