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采用频域处理的方法首次在频域标定飞秒激光脉冲干涉自相关迹的时间扫描.计算被测脉冲的均方根宽度和啁啾参数,并以此为依据在实验中优化钛宝石振荡器的调节从而获得接近变换极限的11·5fs脉冲.该方法只涉及到数值积分和快速傅里叶变换,在实验中完全可以用于实时监测振荡器的运行情况.
The frequency-domain processing method is used to calibrate the time-scan of the femtosecond laser pulse interference autocorrelation trace in the frequency domain for the first time. The rms width and chirp parameters of the measured pulse are calculated, and based on this, And get a 11 · 5fs pulse near the transformation limit.This method only involves numerical integration and fast Fourier transform, and can be used in real experiments to monitor the operation of the oscillator.