Design of the first generation wave front sensor and actuator geometry for the 6.5 m MMT adaptive-optical system

被引：0

作者：

Rhoadarmer, TA ^{[1
]}

McGuire, PC ^{[1
]}

Lloyd-Hart, M ^{[1
]}

Angel, JRP ^{[1
]}

Cuerden, B ^{[1
]}

Fitzpatrick, B ^{[1
]}

Sandler, DG ^{[1
]}

机构：

[1] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

来源：

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

关键词：

adaptive optics; adaptive secondary; deformable mirrors; influence functions; wave front sensors;

D O I：

10.1117/12.321715

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A description is given for the geometry of the first generation adaptive-optical (AO) system being developed for the 6.5 m single-mirror telescope that will replace the Multiple Mirror Telescope on Mt. Hopkins. The AO system consists of an adaptive secondary mirror with 330-actuators and a wave front sensor composed of a 13 x 13 square subaperture array. The deformable mirror actuator vibrational modes were determined from a finite element model of the adaptive-secondary mirror. Numerical simulations based on the finite element results were carried out to determine the expected performance of the system. Two reconstruction algorithms were compared - a least-squares reconstructor and a modal equalization technique developed for this AO geometry. Strehl ratios are reported for the two algorithms for various guide star magnitudes and number of corrected wave front modes.

引用

页码：579 / 590

页数：12