| c—切MgO：LiNbO3质子交换平板波导中切伦科夫倍频的理论分析 |
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| 引用本文： | 牟晓东,邵宗书.c—切MgO：LiNbO3质子交换平板波导中切伦科夫倍频的理论分析[J].光学学报,1993,13(6):20-526. |
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| 作者姓名： | 牟晓东 邵宗书 |
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| 作者单位： | 山东大学晶体材料研究所 济南250100
(牟晓东，邵宗书，陈军，岳学锋)，山东大学晶体材料研究所 济南250100(卓壮) |
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| 基金项目： | 国家“863”计划基金的资助 |
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| 摘 要： | 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;通过对交叠积分的计算找到了进一步提高该效率的有效方法;最后用Nd:YAG激光器进行了切伦科夫倍频实验,得到了接近1%的转换效率,增加包层折射率可以使该效率增加到1.3%,实验结果证实了理论分析.
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| 关 键 词： | 转换效率 波导 倍频器 质子交换 |
| 收稿时间： | 1992/7/2 |
Theoretical analysis of cerenkov second harmonic generation in proton exchanged c -cut MgO : LiNbO_3 optical waveguides |
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| MU Xiaodong SHAO Zhongshu CHEN Jun YUE Xuefeng ZHOU Zhuang.Theoretical analysis of cerenkov second harmonic generation in proton exchanged c -cut MgO : LiNbO_3 optical waveguides[J].Acta Optica Sinica,1993,13(6):20-526. |
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| Authors: | MU Xiaodong SHAO Zhongshu CHEN Jun YUE Xuefeng ZHOU Zhuang |
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| Abstract: | By using coupled-mode equation, the formula for conversion efficiency of Cerenkov second harmonic generation (CSHG) is deduced in this paper. It can be concluded from the analysis that the conversion efficiency of CSHG is determined mainly by overlap integral and an effective method for the enhancement of conversion efficiency is proposed. The measured conversion efficiency in the CSHG experiment using Nd : YAG laser is approximately 1% and it can be enhanced to 1. 3% by increasing the cover refractive index of the waveguide. The experimental results are in good agreement with the theoretical prediction. |
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| Keywords: | conversion efficiency second harmonic generation |
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