deng ying, zhu qi-hua, zhang ying, et al. Temporal and spatial walk-off for ultra-short mid-infrared optical parametric amplification[J]. High Power Laser and Particle Beams, 2007, 19.
Citation:
deng ying, zhu qi-hua, zhang ying, et al. Temporal and spatial walk-off for ultra-short mid-infrared optical parametric amplification[J]. High Power Laser and Particle Beams, 2007, 19.
deng ying, zhu qi-hua, zhang ying, et al. Temporal and spatial walk-off for ultra-short mid-infrared optical parametric amplification[J]. High Power Laser and Particle Beams, 2007, 19.
Citation:
deng ying, zhu qi-hua, zhang ying, et al. Temporal and spatial walk-off for ultra-short mid-infrared optical parametric amplification[J]. High Power Laser and Particle Beams, 2007, 19.
The matching angle, the efficient nonlinear coefficient and the temporal and spatial walk-off length of collinear and non-collinear phase-matching for ultra-short mid-infrared laser optical parametric amplification in MgO:LiNbO3 crystal are analyzed. Based on this analysis, the group velocity matching, the efficient nonlinear coefficient’s increase and the larger signal’s walk-off length for non-collinear phase-matching optical parametric amplification are obtained. The enhanced spatial walk-off effect for the idler is also obtained, but it can be ignored. In a word, non-collinear phase-matching is beneficial to parametric conversion efficiency’s increase.
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