The optical alignment of the Gemini planet imager adaptive optics bench
The optical alignment of the Gemini planet imager adaptive optics bench
复制标题
双子座行星成像仪自适应光学工作台的光学对准
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
V. Reshetov
中科院分区：
文献类型：
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作者：
J. Pazder;Brian Jeffrey Bauman;D. Dillon;M. Fletcher;J. Lacoursière;V. Reshetov
双子座行星成像仪（GPI）是一个正在建设中的8米双子座南望远镜的设施仪器。本文介绍了自适应光学（AO）工作台的光学对准方法。离轴抛物面镜的光学对准是使用预对准方法完成的，该方法利用HeNe激光器和对准望远镜，然后使用Shack-Hartmann波前传感器和剪切板进行微调。使用FARO臂测量系统放置基准点进行对准。使用这些方法，AO工作台被对准到13 nm RMS的波前误差。
The Gemini Planet Imager (GPI) is a facility instrument under construction for the 8-m Gemini South telescope. This paper describes the methods used for optical alignment of the adaptive optics (AO) bench. The optical alignment of the off-axis paraboloid mirrors was done using a pre-alignment method utilizing a HeNe laser and alignment telescopes followed by a fine-tuning using a Shack-Hartmann wavefront sensor and a shear plate. A FARO arm measuring system was used to place the fiducials for the alignment. Using these methods the AO bench was aligned to 13nm RMS of wavefront error.