Calculation of frequency doubling efficiency of femtosecond pulses in BBO crystals
飞秒激光在BBO晶体中倍频效率的数值计算

This paper presents a calculation of frequency-doubling efficiency of femtosecond pulses in BBO crystals using Splited Fourier Method. This method can clearly provide physical picture of frequency-doubling process of femtosecond pulses, while keeping calculation simple. The calculated conversion efficiency for a 2mm long BBO crystal agrees well with experimental measurements.