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题名:
Micrograting-array beam-shaping technique for asymmetrical laser beams
作者: Zheng, GX; Du, CL; Zhou, CX; Zheng, CY
刊名: APPLIED OPTICS
出版日期: 2005-06-10
卷号: 44, 期号:17, 页码:3540-3544
文章类型: Article
英文摘要: A beam-shaping technique is presented for asymmetrical laser beams with different beam waists and divergences in both vertical and horizontal directions. We utilize a pair of two-dimensional micrograting arrays to equalize the beam parameter products of an asymmetrical beam in orthogonal directions by deflecting the appointed parts of the beam on the longer side of the beam and by recombining the parts on the shorter side. When combined with divergent transformation by means of collimating optical components, the beam-shaping system can produce a symmetrical beam in orthogonal directions with optimized beam waists and divergences. A beam-equalization system is designed and demonstrated for a typical asymmetrical beam of a laser diode bar. In the experiment an emission beam with dimensions of 1 mu m x 10 mm and half-divergences of 148 mrad x 576 mrad in-the far field is transformed into an almost-square distribution with dimensions of similar to 12 mm. x 12 mm. and half-divergences of similar to 2 mrad x 2 mrad, which confirm the effectiveness of the proposed technique. (c) 2005 Optical Society of America
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: BARS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000229720000021
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3522
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Opt Technol Microfabricat, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Zheng, GX,Du, CL,Zhou, CX,et al. Micrograting-array beam-shaping technique for asymmetrical laser beams[J]. APPLIED OPTICS,2005,44(17):3540-3544.
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