Open AccessTheoretical study of optical parametric chirped pulse amplification pumped by divergent beams
Author(s) -
Huagang Liu,
Ruobing Zhang,
Haiqing Zhang,
Chen Zhu,
Jing Ma,
Qingyue Wang
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.4635
Subject(s) - optics , chirped pulse amplification , optical parametric amplifier , bandwidth (computing) , parametric statistics , physics , fourier transform , broadband , gaussian , laser , diffraction , optical amplifier , pulse (music) , ultrashort pulse , telecommunications , computer science , mathematics , statistics , quantum mechanics , detector
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 respectivelyusing 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.