| 基于1．2m望远镜白适应光学系统激光信标转盘式机械快门的研究 |
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| 引用本文： | 周钰,熊耀恒,何少辉.基于1．2m望远镜白适应光学系统激光信标转盘式机械快门的研究[J].云南天文台台刊,2011(2):192-195. |
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| 作者姓名： | 周钰 熊耀恒 何少辉 |
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| 作者单位： | 中国科学院国家天文台云南天文台,云南昆明650011 |
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| 基金项目： | 中国科学院西部之光（YOAXB51001）资助. |
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| 摘 要： | 基于激光信标发射和接收共光路系统中探测器受杂散光影响的关键问题，设计了一种新型转盘式机械快门装置，对光信号进行高频率开关控制，从而对自适应光学系统的波前探测器起到彻底保护作用。设计时，分析了瑞利信标的采样厚度以及快门开关与脉冲激光器的发射、探测器探测时间的时序控制。
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| 关 键 词： | 激光信标 机械快门 时序同步 |
Analysis of a Rotating Shutter for the Laser Guide Stars of the Adaptive Optics System on the YNAO 1.2m Telescope |
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| Zhou Yu,Xiong Yaoheng,He Shaohui.Analysis of a Rotating Shutter for the Laser Guide Stars of the Adaptive Optics System on the YNAO 1.2m Telescope[J].Publications of the Yunnan Observatoty,2011(2):192-195. |
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| Authors: | Zhou Yu Xiong Yaoheng He Shaohui |
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| Institution: | (National Astronomical Observatories/Yunnan Observatory, Chinese Academy Sciences, Kunming 650011, China) |
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| Abstract: | Based on the technology of launching and receiving laser beam in a co-aperture for the Laser Guide Stars in the Yunnan Observatory. We have designed a new fast mechanical rotating shutter to control light signal with high frequency thereby protect the wavefront sensor in the adaptive optics system from being damaged by scattered laser light. We also investigate the sampling depths of Ragleigh laser guide stars in detail, and analyze the control of the time sequence of the shutter, laser transmitting, and wavefront detection. |
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| Keywords: | Laser guide star Rotating shutter Time synchronization |
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