| SHI Guang-yuan,LI Song,HUANG Ke,YI Hong,YANG Jin-ling.Gaussian beam shaping based on aspheric cylindrical lenses[J].Optoelectronics Letters,2014,10(6):439-442 |
| Gaussian beam shaping based on aspheric cylindrical lenses |
| Author Name | Affiliation | | SHI Guang-yuan | Electronic Information School, Wuhan University, Wuhan 430072, China | | LI Song | Electronic Information School, Wuhan University, Wuhan 430072, China | | HUANG Ke | Electronic Information School, Wuhan University, Wuhan 430072, China | | YI Hong | Electronic Information School, Wuhan University, Wuhan 430072, China | | YANG Jin-ling | Electronic Information School, Wuhan University, Wuhan 430072, China |
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| Abstract: |
| We propose a specific aspheric cylindrical optical system to transform Gaussian beam to flat-top and rectangular beam. The Gaussian beam shaping system is composed of dual orthogonal aspheric cylindrical lenses. The principle of shaping Gaussian beam is studied theoretically. The mapping function of arbitrary rays in an incident plane and an image plane is deduced based on the law of energy conservation, and the real ray tracing method is adopted to design the shaping system. Finally, the lens system is processed by single point diamond turning techniques. Testing results indicate that the system achieves the theoretical expectation, and the uniformity of flat-top and rectangular beam is 88.2%. The method is not only simple but also practical. |
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| This work has been supported by the Funding Project for Surveying and Mapping Geographic Information Public Industry (No.20142007). |
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