论文标题
红外倾斜倾斜感应：天上的体验，学习的经验教训和未解决的问题
Infrared tip-tilt sensing: on-sky experience, lessons learned and unsolved problems
论文作者
论文摘要
红外倾斜传感器（IR TTSS）已在三种不同的望远镜上部署在三个不同的激光导向星自适应光学（AO）系统上。这些红外线TT受益于近红外的高阶PSF锐化，因此它们提供了低尖端的残留物和良好的天空覆盖率。然而，这些红外线很具有挑战性，它们在AO中的使用是有限的。在本文中，我们概述了现有的IR TT，提供了天上的绩效结果，并使用红外TTS以及不久的将来的计划描述了我们的经验。该论文的第二部分涉及红外TT的尚未解决的挑战。这些包括使用红外TTSS测量高阶模式并在多个具有不同幅度的多个导向恒星上进行指导，其中包括低纹状体状态下的算法和循环稳定性。
Infrared tip-tilt sensors (IR TTSs) have been deployed on three different laser guide star adaptive optics (AO) systems on three different telescopes. These IR TTS benefit from the high-order loop PSF sharpening in the near infrared, hence they provide a low tip-tilt residual and a good sky coverage. Nevertheless, these IR TTS are challenging and their use in AO is limited. In this paper, we outline existing IR TTS, provide on-sky performance results and describe our experience using IR TTS and along with plans for the near future. The second part of the paper deals with unresolved challenges for IR TTS. These include algorithms and loop stability in the low Strehl regime, using IR TTSs to measure higher-order modes and guiding on multiple guide stars with different magnitudes.
