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Shape the unstable laser beam using diffractive optical element Array
Yuanyuan Li; Chuankai Qiu; Pan Li; Tingwen Xing; Wumei Lin; Chongxi Zhou
Volume7848
Pages78481x (9 pp.)
2010
Language英语
Indexed ByEi ; ISTP
Subtype会议论文
AbstractThe structure combining the microlens and DOE is not sensitive to the incident beam and can control the overall shape profile flexibly.So that the structure called DOE array is designed in this paper in order to shape the unstable laser beam to the four polar uniformity distribution.The paper gives the principle of the DOE array and the design process. The array element determines the profile of the output beam. it is designed using the G-S algorithm and the Adaptive Addition algorithm(A-A). The number of the DOEs is optimized and analyzed. The simulative diffraction efficiencies are 89% and non-uniformities are less than 3% when the incident beams are Gaussian, supper-Gaussian, paraboloid and random distributions. In experiment, diffraction efficiency of 77% and maximum non-uniformity of 5.6%are got on the condition of the different input laser beam. So the effect on the instability of the incident beam could be decreased.; The structure combining the microlens and DOE is not sensitive to the incident beam and can control the overall shape profile flexibly.So that the structure called DOE array is designed in this paper in order to shape the unstable laser beam to the four polar uniformity distribution.The paper gives the principle of the DOE array and the design process. The array element determines the profile of the output beam. it is designed using the G-S algorithm and the Adaptive Addition algorithm(A-A). The number of the DOEs is optimized and analyzed. The simulative diffraction efficiencies are 89% and non-uniformities are less than 3% when the incident beams are Gaussian, supper-Gaussian, paraboloid and random distributions. In experiment, diffraction efficiency of 77% and maximum non-uniformity of 5.6%are got on the condition of the different input laser beam. So the effect on the instability of the incident beam could be decreased.
Conference NameProceedings of the SPIE - The International Society for Optical Engineering
Conference Date2010
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7882
Collection微细加工光学技术国家重点实验室(开放室)
Corresponding AuthorYuanyuan Li
Affiliation中国科学院光电技术研究所
Recommended Citation
GB/T 7714
Yuanyuan Li,Chuankai Qiu,Pan Li,et al. Shape the unstable laser beam using diffractive optical element Array[C],2010:78481x (9 pp.).
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