Generation of flat-top pulse by means of step gratings |
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| Authors: | Guohua Liu Rongrong Xu Hanping Wu Wenbing Yu |
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| Institution: | aSchool of Science, Wuhan Institute of Technology, Wuhan 430073, China;bHubei Province Key Laboratory of Intelligent Robot, Wuhan Institute of Technology, Wuhan 430073, China |
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| Abstract: | A simple method for generating flat-top pulse by means of step gratings is presented. Flat-top pulse specifications depend on the structural parameters of the step gratings. The results show that a short Gaussian-shaped femtosecond laser pulse can be shaped to be a long flat-top pulse by ensuring sufficient step level number and proper step height. |
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| Keywords: | Flat-top pulse Femtosecond laser pulse Step gratings |
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