Analysis of wavefront correction experiment based on 19-channel piezoelectric deformable mirrors

被引：0

作者：

Liu, Cong ^{[1
,2
]}

Ma, Caiwen ^{[1
]}

机构：

[1] Xi'an Institute of Optics and Precision Mechanics, Chinese Acad. of Sci., Xi'an

[2] Graduate University of Chinese Acad. of Sci.

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2009年 / 36卷 / SUPPL. 2期

关键词：

Adaptive optics; Physical optics; Piezoelectric deformable mirrors; Wavefront correction;

D O I：

10.3788/CJL200936s2.0062

中图分类号：

学科分类号：

摘要：

Piezoelectric deformable mirrors (PDM) is a widely-used wavefront corrector in the adaptive optics which is to compensate for the wavefront aberration generated by the atmosphere turbulence in astronomical telescopes and laser communication systems. Analyzing the performance parameters of PDM, like fitting error, actuators' number and spatial arrangement, dynamic range, we designed an experimental adaptive optic system based on 19-channel PDM. This system uses Zernike modal approach to reconstruct the wavefront and real-time control PDM to compensate three wavefront aberrations: defocus, astigmatism and coma simulated in Matlab in a negative feedback closed loop. The experimental results show that the piezoelectric deformable mirrors have good correction capability for wavefront aberration in negative feedback closed-loop adaptive optic system.

引用

页码：62 / 66

页数：4

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