| 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. | |
| Volume | 8418 |
| Pages | 84180Q |
| 2012 | |
| Language | 英语 |
| ISSN | 0277786X |
| DOI | 10.1117/12.975202 |
| Indexed By | Ei |
| Subtype | 会议论文 |
| Abstract | 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.; 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 Name | Proceedings 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 Date | 2012 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/7462 |
| Collection | 应用光学研究室（二室） |
| Corresponding Author | Yin, K. |
| Affiliation | 1. 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2012-2093.pdf（213KB） | 会议论文 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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