用于标定条纹相机的对撞脉冲锁模激光器

A colliding pulse mode-locked laser used to calibrate streak camera

报道了一种被动皮秒对撞脉冲锁模Nd:YAG激光器的腔型及应用情况。用这样的对撞锁模脉冲激光器来标定皮秒条纹相机的非线性和触发晃动等得到了很好的结果。同时用条纹相机探测激光脉冲宽度也可以得到比示波器等设备准确的结果,最后得到输出脉冲宽度为10 ps左右,比通常的反射式被动锁模脉冲宽度要窄3～5倍。

The cavity and application of a kind of passive piosecond colliding pulse mode-locked laser are reported. The better results are obtained by adopting the laser to calibrate the nonlinearity and triggering jitter of piosecond streak camera. Meanwhile, the width of laser pulse detected by streak camera is more precise than oscillograph. As a result FWHM of 10 ps of the laser pulse can be achieved easily, which is 3 - 5 times narrower than the general reflex passive colliding pulse mode-locked laser .