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Automatic low-order aberration correction based on geometry optics: Simulations
Yu, Xin1,2,3,4; Dong, Lizhi1,3; Liu, Yong2; Yang, Ping1,3; Tang, Guomao1,3; Xu, Bing1,3
2016
发表期刊Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
ISSN0277-786X
卷号9683页码:96830S
文章类型C
摘要The slab laser is a promising architecture to achieve high beam quality and high power. By propagating the laser beams in zigzag geometries, the temperature gradient in the gain medium can be well averaged, and the beam quality in this direction can be excellent. However, the temperature gradient in the non-zigzag direction is not compensated, resulting in aberrations in this direction which lead to poorer beam quality. Among the overall aberrations, the main contributors are two low-order aberrations: astigmatism and defocus. These aberrations will magnify beam divergence angle and degrade beam quality. If the beam divergence angles in both directions are almost zero, the astigmatism and defocus are well corrected. Besides, the output beams of slab lasers are generally in a rectangular aperture with high aspect ratio (normally 1:10), which need to be reshaped into square in many applications. In this paper, a new method is proposed to correct low-order aberrations and reshape the beams of slab lasers. Three lenses are adapted, one is a spherical lens and the others are cylindrical lenses. These lenses work as a beam shaping system, which converts the beam from rectangular into square and the low-order aberrations are compensated simultaneously. Two wavefront sensors are used to detect input and output beam parameters. The initial size of the beam is 4mm×20mm, and peak to valley (PV) value of the wavefront is several tens of microns. Simulation results show that after correction, the dimension becomes 40mm×40mm, and peak to valley (PV) value of the wavefront is less than 1microns. © 2016 SPIE.
关键词Aspect Ratio Electric Power Factor Correction Geometry Laser Beams Manufacture Temperature Thermal Gradients Wavefronts
DOI10.1117/12.2242725
收录类别SCI ; Ei
语种英语
项目资助者Chinese Academy of Sciences, Institute of Optics and Electronics (IOE) ; The Chinese Optical Society (COS)
WOS记录号WOS:000387745800027
引用统计
文献类型期刊论文
条目标识符http://ir.ioe.ac.cn/handle/181551/8432
专题自适应光学技术研究室(八室)
作者单位1. Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan
2.610209, China
3. School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu, Sichuan
4.610054, China
5. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan
6.610209, China
7. University of Chinese Academy of Sciences, Beijing
8.100039, China
推荐引用方式
GB/T 7714
Yu, Xin,Dong, Lizhi,Liu, Yong,et al. Automatic low-order aberration correction based on geometry optics: Simulations[J]. Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies,2016,9683:96830S.
APA Yu, Xin,Dong, Lizhi,Liu, Yong,Yang, Ping,Tang, Guomao,&Xu, Bing.(2016).Automatic low-order aberration correction based on geometry optics: Simulations.Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies,9683,96830S.
MLA Yu, Xin,et al."Automatic low-order aberration correction based on geometry optics: Simulations".Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies 9683(2016):96830S.
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