Implementation of 188-element Curvature-based Wavefront Sensor and Calibration Source Unit for the Subaru LGSAO System

被引：8

作者：

Watanabe, Makoto ^{[1
]}

Oya, Shin ^{[1
]}

Hayano, Yutaka ^{[1
]}

Takami, Hideki ^{[1
]}

Hattori, Masayuki ^{[1
]}

Minowa, Yosuke ^{[1
]}

Saito, Yoshihiko ^{[1
]}

Ito, Meguru ^{[1
]}

Murakami, Naoshi ^{[2
]}

Iye, Masanori ^{[2
]}

Guyon, Olivier ^{[1
]}

Colley, Stephen ^{[1
]}

Eldred, Michael ^{[1
]}

Golota, Taras ^{[1
]}

Dinkins, Matthew ^{[1
]}

机构：

[1] Natl Inst Nat Sci, Natl Astron Observ Japan, Subaru Telescope, 650 N Aohoku Pl, Hilo, HI 96720 USA

[2] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

来源：

ADAPTIVE OPTICS SYSTEMS, PTS 1-3 | 2008年 / 7015卷

关键词：

adaptive optics; laser guide star; wavefront sensing; curvature sensor; Subaru telescope;

D O I：

10.1117/12.789882

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Subaru laser guide star adaptive optics (AO) system was installed at the Nasmyth focus of the Subaru Telescope, and had the first light with natural guide star on October 2006. lie AO system has a 188-element curvature based wavefront sensor with photon-counting avalanche photodiode (APD) modules. It measures high-order terms of wavefront using either of a single laser (LGS) or natural guide star (NOS) within a, 2' diameter field. The AO system has also a source simulator. It simulates LGS and NOS beams, simultaneously, with and without atmospheric turbulence by two turbulent layer at about 0 and 6 km altitudes, and reproduces the cone effect, for the LGS beam. We describe the design, construction, and integration of the curvature wavefront sensor and calibration Source unit.

引用

页数：8

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