用一种经典电光调Q的方法实现前级激光振荡, 后级激光放大的脉冲YAG激光器, 最大输出频率20 Hz。对偏振片侧面反射出较强激光的特殊现象做了深入的分析和探讨,指出了该现象产生的原因。并指出如何利用这 种现象来指导此类激光器的调试。

A solid-state laser system with short pulse width, including an oscillator and an amplifier, was implemented. In the oscillator a classical E-O Q-switch method was used. The maximal output frequency is 20 Hz. In-depth discussion and analysis were focused on the phenomena that the laser beam with a quite high energy was reflected from the side of polarizer. And the cause of this phenomena was pointed out. It has been discussed that how to make use of this phenomena to guide the debugging of this kind of laser.