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运用分步傅里叶法解非线性薛定谔方程来对超短脉冲在充满惰性气体的中空光波导中的展宽与压缩进行数值模拟计算.模拟证明,分段光纤展宽光谱具有损耗小,可能压缩脉冲窄等潜在优点,对在实验中进一步压缩脉冲到周期量级有指导意义.
The nonlinear Schrodinger equation is solved by the step-by-step Fourier method to numerically simulate the broadening and compression of ultra-short pulses in a hollow waveguide filled with inert gas. The simulation results show that the staged fiber broadened spectrum has the advantages of small loss and possible compression pulse The potential benefits of narrowing are instructive in further compressing the pulse to the order of magnitude in the experiment.