激光技术2016，Vol.40Issue(6)：916-920,5.DOI:10.7510/jgjs.issn.1001-3806.2016.06.029
基于数字微镜阵列的平顶光束空间整形
Flat-top beams spatial shaping with digital micromirror device
摘要
Abstract
In order to satisfy the applications with high quality beams and fast scanning, the formation of single flat-top and multiple flat-top beams were simulated by digital micromirror device and error diffusion method. An experimental setup with 680nm laser was built to validate the model. The beam shaping result was evaluated by using beam fill factor, light field modulation factor, root mean square error as parameters, and the energy utilization rate of beam shaping based on digital micromirror array was measured and analyzed. The results show that beam fill factors increase from 36. 1% to 62. 3%(single), 56. 7%(multiple) respectively, while light field modulation factors decrease from 73. 3% to 25. 6%(single),30. 3%(multiple) respectively. Spatial shaping results show that the multiple flat-top beams are valuable in high quality beams and fast scanning.关键词
激光光学/光束整形/数字微镜阵列/误差扩散法/多平顶光束Key words
laser optics/beam shaping/digital micromirror device/error diffusion method/multiple flat-top beam分类
数理科学引用本文复制引用
娄艳阳,郑贤良,张世超,鹿伟民,李辉,熊大曦..基于数字微镜阵列的平顶光束空间整形[J].激光技术,2016,40(6):916-920,5.基金项目
国家自然科学基金资助项目(51376191) （51376191）
国家自然科学基金青年科学基金资助项目(61405238) （61405238）
