Wavefront sensor design for the GMT natural guide star AO system

被引：13

作者：

Esposito, S. ^{[1
]}

Pinna, E. ^{[1
]}

Quiros-Pacheco, F. ^{[1
]}

Puglisi, A. T. ^{[1
]}

Carbonaro, L. ^{[1
]}

Bonaglia, M. ^{[1
]}

Biliotti, V. ^{[1
]}

Briguglio, R. ^{[1
]}

Agapito, G. ^{[1
]}

Arcidiacono, C. ^{[2
]}

Busoni, L. ^{[1
]}

Xompero, M. ^{[1
]}

Riccardi, A. ^{[1
]}

Fini, L. ^{[1
]}

Bouchez, A. ^{[3
]}

机构：

[1] INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy

[2] INAF Osservatorio Astronom Bologna, I-40127 Bologna, Italy

[3] GMTO Corp, Pasadena, CA 91109 USA

来源：

ADAPTIVE OPTICS SYSTEMS III | 2012年 / 8447卷

关键词：

adaptive optics; pyramid wavefront sensor; phasing sensor; segmented telescopes;

D O I：

10.1117/12.927158

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The paper presents the preliminary design of the Natural Guide Star Wavefront Sensor for the single conjugate AO system of the GMT telescope. The NGS Wavefront Sensor (NGWS), already identified as a pyramid sensor, will be in charge of the entire wavefront error measurement namely atmospheric turbulence and telescope aberrations, including the segment differential piston error. The paper describes the WFS opto-mechanical design with particular emphasis on the WFS board. Numerical simulations of the GMT NGS AO system are performed taking into account the main characteristics of the considered WFS unit. The simulations take into account correction of the atmospheric perturbation and control of the differential pistons of the GMT segments.

引用

页数：10

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