We have also discussed the effect of the beam divergence on the second harmonic conversion efficiency.
还讨论了泵浦束的发散角对二次谐波转换效率的影响。
In Cerenkov second harmonic generation (CSHG) scheme, the phase matching condition is satisfied automatically, but the conversion efficiency is low.
切伦科夫方案中，相位匹配条件可以自动满足，但是倍频效率较低。
By using coupled-mode equation, the formula for conversion efficiency of Cerenkov second harmonic generation (CSHG) is deduced in this paper.
从耦合模方程出发，推导了切伦科夫倍频转换效率公式，并得出该效率主要是由交叠积分决定的结论；
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