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Theoretical study of optical parametric chirped pulse amplification pumped by divergent beams

Liu Hua-Gang Zhang Ruo-Bing Zhang Hai-Qing Zhu Chen Ma Jing Wang Qing-Yue

Theoretical study of optical parametric chirped pulse amplification pumped by divergent beams

Liu Hua-Gang, Zhang Ruo-Bing, Zhang Hai-Qing, Zhu Chen, Ma Jing, Wang Qing-Yue
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  • Abstract views:  3421
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  • Received Date:  10 July 2006
  • Accepted Date:  06 April 2007
  • Published Online:  20 August 2007

Theoretical study of optical parametric chirped pulse amplification pumped by divergent beams

  • 1. 天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津 300072

Abstract: The gain bandwidth of optical parametric chirped pulse amplification pumped by divergent beams has been theoretically studied. Several gain curves are simulated when the pump are non-diffraction-limited Gaussian beams or a beams having rectangular distribution in spatial spectrum respectively,using the method of Fourier transform and the fourth-order Runge-Kutta algorithm. The results show that the gain bandwidth of optical parametric chirped pulse amplification can be obviously improved by using divergent pump beams, either in the visible or in the near infrared region. Very high gain and broadband spectrum can be obtained if the divergence angle and intensity of the pump is selected properly.

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