NYAB晶体Cr^(4+):YAG被动调Q的激光特性研究

NYAB Crystal Lasing Characteristics Using a Cr 4+ ∶YAG Passive Q switch

采用氙灯泵浦，Ｃｒ４＋ＹＡＧ被动调Ｑ，实现了自倍频晶体ＮＹＡＢ调Ｑ激光运转，测量了Ｃｒ４＋ＹＡＧ不同小信号透过率及不同泵浦能量下绿激光单脉冲的输出能量、脉冲宽度、重复率，给出了描述ＮＹＡＢ晶体Ｃｒ４＋ＹＡＧ调Ｑ工作原理的耦合波方程组，数值求解该方程组所得的理论结果与实验值相符。

Using a xenon flash lamp as the pump source, Cr 4+ ∶ YAG as a passive Q switch, we have realized the green laser output at 0.53 μm from a self frequency doubling NYAB crystal. The green laser output energy, pulse width and repetition rate under conditions of different cavity lengths and small signal transmission of Cr 4+ ∶YAG were measured. Meanwhile, Cr 4+ ∶YAG Q switched coupling wave rate equations for NYAB crystal were given and numerical solutions of the equations were in agreement with the experimental results.