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Proceedings Paper

Temporal pulse cleaning by a self-diffraction process for ultrashort laser pulses
Author(s): Na Xie; Kainan Zhou; Li Sun; Xiaodong Wang; Yi Guo; Qing Li; Jingqin Su
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Paper Abstract

Applying the self-diffraction process to clean ultrashort laser pulses temporally is a recently developed effective way to temporal contrast enhancement. In this paper, we attempt to clean ultrashort laser pulses temporally by the self-diffraction process. Experiments were carried out to study the temporal contrast improvement in the front-end system of an ultraintense and ultrashort laser facility, i.e. the super intense laser for experiment on the extremes (SILEX-I). The results show that the maximum conversion efficiency of the first-order self-diffraction (SD1) pulse is 11%. The temporal contrast of the SD1 signal is improved by two orders of magnitude, i.e. to 103, for a 2.4-ns prepulse with initial contrast of ~10. For a 5.5 -ns prepulse with initial contrast of 2×103, the temporal contrast of the SD1 signal is improved by more than three orders of magnitude.

Paper Details

Date Published: 18 November 2014
PDF: 7 pages
Proc. SPIE 9266, High-Power Lasers and Applications VII, 926604 (18 November 2014); doi: 10.1117/12.2071009
Show Author Affiliations
Na Xie, China Academy of Engineering Physics (China)
Kainan Zhou, China Academy of Engineering Physics (China)
Li Sun, China Academy of Engineering Physics (China)
Xiaodong Wang, China Academy of Engineering Physics (China)
Yi Guo, China Academy of Engineering Physics (China)
Qing Li, China Academy of Engineering Physics (China)
Jingqin Su, China Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 9266:
High-Power Lasers and Applications VII
Ruxin Li; Upendra N. Singh; Robert F. Walter, Editor(s)

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