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Performance test and closed-loop correction experiment of a 20-element bimorph deformable mirror
Ning Yu1,2; Yu Hao1,2; Zhou Hong1,3; Rao Chang-Hui1; Jiang Wen-Han1
Source PublicationACTA PHYSICA SINICA
Volume58Issue:7Pages:4717-4723
2009-07-01
Language英语
Indexed BySCI
WOS IDWOS:000268263700054
SubtypeArticle
AbstractPerformances of a 20-element bimorph deformable mirror are measured and a closed-loop adaptive optics system, which consists of the bimorph mirror and a Shack-Hartmann wave-front sensor with 13 x 13 sub-aperture array, is established to test the mirror's capability of correcting static aberrations. Experimental results show that, the mean displacement response to voltage of discrete actuators is 0.57 mu m/100 V and that of defocus electrode is 1.09 mu m/100 V. The hysteresis of actuator is limited to ten percents of the maximal displacement. With the ambient temperature increasing from 13 degrees C to 25 degrees C, the P-V of defocus of the mirror surface is enlarged by 1.37 mu m and the P-V of other distortions, such as astigmatism, coma and spherical aberration, is enlarged by 0.15 mu m. The frequency response of the bimorph mirror is about 4 kHz. When the closed-loop control is on, intensity distributions at the image plane of distorted wave-fronts are effectively improved. The Strehl ratios increase from 0.02 to 0.95, and 0.03 to 0.54, respectively.
KeywordAdaptive Optics Bimorph Deformable Mirror Performance Analysis Closed-loop Correction
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/3278
Collection光电技术研究所被WoS收录文章
Affiliation1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Natl Univ Def Technol, Coll Photon Elect Sci & Engn, Changsha 410073, Hunan, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ning Yu,Yu Hao,Zhou Hong,et al. Performance test and closed-loop correction experiment of a 20-element bimorph deformable mirror[J]. ACTA PHYSICA SINICA,2009,58(7):4717-4723.
APA Ning Yu,Yu Hao,Zhou Hong,Rao Chang-Hui,&Jiang Wen-Han.(2009).Performance test and closed-loop correction experiment of a 20-element bimorph deformable mirror.ACTA PHYSICA SINICA,58(7),4717-4723.
MLA Ning Yu,et al."Performance test and closed-loop correction experiment of a 20-element bimorph deformable mirror".ACTA PHYSICA SINICA 58.7(2009):4717-4723.
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