本文首次对调Q Nd:YAG激光器1064 nm光泵浦CLBO晶体的倍频效率与晶体长度和偏振分量比的关系曲线进行了数值模拟计算.若泵浦光采用平面波形,CLBO晶体的Ⅰ类、Ⅱ类SHG效率可超过80%;若泵浦光采用高斯波形,CLBO晶体的Ⅰ类、Ⅱ类倍频效率分别为68.3%和80%.得到CLBO晶体倍频应采取Ⅱ类相位匹配方式的结论.
参考文献
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