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Design and analysis of diffractive optical elements for flattening of single modal Gaussian beams
Yin, Kewei1,2; Huang, Zhiqiang1; Lin, Wumei1; Xing, Tingwen1; Yin, K.
Volume8418
Pages84180Q
2012
Language英语
ISSN0277786X
DOI10.1117/12.975202
Indexed ByEi
Subtype会议论文
AbstractA design method of diffractive optical element is presented for converting a single modal Gaussian beam into a flat-top beam in the far field of the source. The design is based on geometrical method and modified Gerchberg-Saxton method. Geometrical method derives from the conservation of energy and the constant optical path length. This method could supply initial phase distribution of the modified Gerchberg-Saxton method. To find the optimization design results, the modified Gerchberg-Saxton method is important to choose the feedback factor to increase the convergent speed. In addition, tolerances and limitations of such elements result in a reduction of the diffraction efficiency and as a result of stray light. Further study indicates that deviation of the laser wavelength, incident beam, and observation plane can greatly influence flat-top beam shaping quality. On the basis of theoretical and experimental results, limitations for the application of diffractive beam shaping elements are investigated. © 2012 SPIE.; A design method of diffractive optical element is presented for converting a single modal Gaussian beam into a flat-top beam in the far field of the source. The design is based on geometrical method and modified Gerchberg-Saxton method. Geometrical method derives from the conservation of energy and the constant optical path length. This method could supply initial phase distribution of the modified Gerchberg-Saxton method. To find the optimization design results, the modified Gerchberg-Saxton method is important to choose the feedback factor to increase the convergent speed. In addition, tolerances and limitations of such elements result in a reduction of the diffraction efficiency and as a result of stray light. Further study indicates that deviation of the laser wavelength, incident beam, and observation plane can greatly influence flat-top beam shaping quality. On the basis of theoretical and experimental results, limitations for the application of diffractive beam shaping elements are investigated. © 2012 SPIE.
Conference NameProceedings of SPIE: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Smart Structures, Micro- and Nano-Optical Devices, and Systems
Conference Date2012
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7462
Collection应用光学研究室(二室)
Corresponding AuthorYin, K.
Affiliation1. Lab of Applied Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
Recommended Citation
GB/T 7714
Yin, Kewei,Huang, Zhiqiang,Lin, Wumei,et al. Design and analysis of diffractive optical elements for flattening of single modal Gaussian beams[C],2012:84180Q.
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