Compensation of nonlinear selffocusing in propagation of high power superGaussian beams

zhao hua jun; zhu qi hua; feng guo ying; liu wen bing; zhang qing quan; ma zai ru; chen jian guo

Volume 16 Issue 03

Mar. 2004

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Article Navigation > High Power Laser and Particle Beams > 2004 > 16(03): 0-

gong hua-rong, gong yu-bing, tang chang-jian, et al. Simulation of ion noise character in klystron[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

zhao hua jun, zhu qi hua, feng guo ying, et al. Compensation of nonlinear selffocusing in propagation of high power superGaussian beams[J]. High Power Laser and Particle Beams, 2004, 16.

gong hua-rong, gong yu-bing, tang chang-jian, et al. Simulation of ion noise character in klystron[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

zhao hua jun, zhu qi hua, feng guo ying, et al. Compensation of nonlinear selffocusing in propagation of high power superGaussian beams[J]. High Power Laser and Particle Beams, 2004, 16.

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Compensation of nonlinear selffocusing in propagation of high power superGaussian beams

1.
Department of Opto Electronics,Sichuan University,Chengdu 610064,China;
2.
Research Center of Laser Fusion,CAEP,P.O.Box 919 988,Mianyang 621900,China

Publish Date: 2004-03-15

Abstract

Abstract

The basic theory of a beam passing through the nonlinear medium is analysed in this paper, and the process of a tenstep high power supperGaussion beam passing through the nonlinear medium is calculated with the FFT. A negative nonlinear refractive index material was used as the compensating medium to compare different compensation methods. Studies suggest compensation can decrease B integral along the beam direction in a nonlinear medium, and can cancel the selffocusing of beams greatly. It can also avoid the nonlinear increase on the edges of superGaussian beams effectively. The compensation after nonlinear medium was selected as the idea compensating methods.
- nonlinear compensation,
- supergaussian beams,
- b integral,
- smallscale selffocusing

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