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Proceedings Paper

Control of high power laser in nonlinear media by lens-focusing and beam self-focusing
Author(s): Hui Liu; Xiquan Fu; Yanchao Hou; Jianqin Deng
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Paper Abstract

In this paper, we firstly preliminary analyzed how to control the collapse position of beam when intensity and beam waist have been varied by the laser self-focusing in nonlinear media and lens-focusing. We obtain the relations of the focusing position with input power and focal length of lens. The length of focusing is inversely proportional to the input power and directly proportional to focal length of lens. Secondly, Based on the nonlinear propagation equation and split-step Fourier method, we investigate how to control the focal distance and beam quality of high-power laser at focusing spot in nonlinear media. We can control the focusing spot at any position by changed power and lens. The numerical simulations is good consistent with theoretical analysis.

Paper Details

Date Published: 16 November 2010
PDF: 7 pages
Proc. SPIE 7843, High-Power Lasers and Applications V, 78430N (16 November 2010); doi: 10.1117/12.870409
Show Author Affiliations
Hui Liu, Hunan Univ. (China)
Xiquan Fu, Hunan Univ. (China)
Yanchao Hou, Hunan Univ. (China)
Jianqin Deng, Hunan Univ. (China)


Published in SPIE Proceedings Vol. 7843:
High-Power Lasers and Applications V
Upendra N. Singh; Dianyuan Fan; Jianquan Yao; Robert F. Walter, Editor(s)

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