Research on the compensation of laser launch optics to improve the performance of the LGS spot

	Research on the compensation of laser launch optics to improve the performance of the LGS spot
	Liu, Jie; Wang, Jianli; Wang, Yuning; Tian, Donghe; Zheng, Quan; Lin, Xudong; Wang, Liang; Yang, Qingyun
刊名	APPLIED OPTICS
	2018
卷号	57 期号:4 页码:648-651
英文摘要	To improve the beam quality of the uplink laser, a 37 channel piezo-ceramic deformable mirror was inserted into the laser launch optics to compensate the static aberrations. An interferometer was used as the calibration light source as well as the wavefront sensor to perform closed-loop correction for the moment. About 0.38 lambda root mean square (rms) aberrations, including the deformable mirror's initial figure error, were compensated, and the residual error was less than 0.07 lambda rms. Field observations with a 2 m optical telescope demonstrated that the peak intensity value of the laser guide star (LGS) spot increased from 5650 to 7658, and the full width at half-maximum (FWHM) size reduced from 4.07 arcseconds to 3.52 arcseconds. With the compensation, an improved guide star spot can be obtained, which is crucial for the adaptive optics systems of ground-based large telescopes. (c) 2018 Optical Society of America
语种	英语
WOS记录号	WOS:000424678900012
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/17975]
专题	中国科学院紫金山天文台
推荐引用方式 GB/T 7714	Liu, Jie,Wang, Jianli,Wang, Yuning,et al. Research on the compensation of laser launch optics to improve the performance of the LGS spot[J]. APPLIED OPTICS,2018,57(4):648-651.
APA	Liu, Jie.,Wang, Jianli.,Wang, Yuning.,Tian, Donghe.,Zheng, Quan.,...&Yang, Qingyun.(2018).Research on the compensation of laser launch optics to improve the performance of the LGS spot.APPLIED OPTICS,57(4),648-651.
MLA	Liu, Jie,et al."Research on the compensation of laser launch optics to improve the performance of the LGS spot".APPLIED OPTICS 57.4(2018):648-651.