本文讨论了CsLiB6O10晶体用于平顶高斯光束和高斯光束二次谐波转换效率的机理.对影响平顶高斯光束的二次谐波转换效率的泵浦光强度、偏振分量比、晶体长度和平顶高斯光束的阶数进行了分析和数值模拟.获得了在Ⅰ类和Ⅱ类相位匹配下,通过CsLiB6O10晶体时平顶高斯光束的二次谐波转换效率理论值逼近于1和78.5%.得出在相同条件下,平顶高斯光束的二次谐波转换效率大于高斯型69.1%的结果.
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