| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 733851 | Optics & Laser Technology | 2011 | 4 Pages |
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.
► Step grating is used for pulse shaper. ► Short Gaussian-shaped incident pulse can be shaped to be a long flat-top diffraction pulse. ► Dependences of the flat-top pulse on the structural parameters of the step gratings are explored.
Keywords
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Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Guohua Liu, Rongrong Xu, Hanping Wu, Wenbing Yu,