首页> 外文会议>Advancements in Adaptive Optics pt.3 >Focus and pointing adjustments necessary for laser guide star adaptive optics at the W. M. Keck Observatory
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Focus and pointing adjustments necessary for laser guide star adaptive optics at the W. M. Keck Observatory

机译:W.M. Keck天文台的激光制导星自适应光学系统所需的聚焦和指向调整

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The W. M. Keck Observatory Adaptive Optics (AO) team recently celebrated a milestone first AO-corrected image with the new Laser Guide Star (LGS) system. This paper details focus and pointing changes implemented for the LGS AO system. The combination of variable sodium altitude, elevation-dependent distance to the LGS, off-axis projection, and equipment flexure require both focus and pointing adjustments to keep the laser spot located and its size minimized on the wavefront sensor. We will describe the current approach to LGS focus and pointing-compensation adjustments, and provide some insight into issues seen thus far during engineering activities at the W. M. Keck Observatory.
机译:W. M. Keck天文台自适应光学(AO)团队最近使用新的激光引导星(LGS)系统庆祝了具有里程碑意义的第一个AO校正图像。本文详细介绍了针对LGS AO系统实现的重点和针对性的更改。可变的钠海拔高度,与LGS的仰角相关距离,离轴投影以及设备弯曲的组合需要聚焦和指向调整,以保持激光点的位置并使波前传感器的尺寸最小。我们将描述LGS聚焦和指向补偿调整的当前方法,并对W. M. Keck天文台的工程活动期间迄今为止发现的问题提供一些见解。

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