Numerical simulation of frequency doubling of femtosecond pulses

Abstract

Abstract: The temporal and spectral evolutions of the fundamental and second harmonic (SH) pulses were simulated in the propagation. By introducing the walk-off length and the nonlinear length, walk-off effect, group-velocity dispersion and cubic nonlinearity were described. The wavelength tuning characteristic of femtosecond-pulse second harmonic generation (SHG) was analyzed. It is found that the Full width at half maximum (FWHM) of the SHG wavelength tuning curve of 40fs pump pulses can reach as wide as 42nm, while that of 40ps pump pulses is only 2.8nm.

Key words: nonlinear optics, femtosecond pulses, wavelength tuning, temporal and spectral evolutions

CLC Number:

O437

Jiang Baohua, Huang Zhangchao, Lv Fuyun. Numerical simulation of frequency doubling of femtosecond pulses[J]. J4, 2013, 30(4): 466-472.

References

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