| 利用晶体串接实现宽带三次谐波转换 |
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| 引用本文： | 季来林,朱俭,马伟新,詹庭宇.利用晶体串接实现宽带三次谐波转换[J].中国激光,2006,33(10):345-1348. |
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| 作者姓名： | 季来林 朱俭 马伟新 詹庭宇 |
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| 作者单位： | 1. 上海激光等离子体研究所,上海,201800
2. 中国科学院上海光学精密机械研究所,上海,201800 |
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| 摘 要： | 从耦合波方程出发,分别在小信号、高功率密度(1.5 GW/cm2)条件下研究了晶体串接三次谐波(THG)转换方案,并利用实验验证了该方案。实验观察到这种方案可以有效提高宽带激光三次谐波转换效率,但混频晶体之间的距离对宽带三次谐波转换效率影响明显。在1.5 GW/cm2平均功率密度下,实验中最佳距离25 mm处,对带宽3.5 nm的啁啾脉冲取得了19.75%的三倍频效率,这对于高功率激光宽带三次谐波转换的解决很有意义。
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| 关 键 词： | 非线性光学 三次谐波 晶体串接 带宽 |
| 文章编号： | 0258-7025（2006）10-1345-04 |
| 收稿时间： | 2006-01-15 |
| 修稿时间： | 2006-05-10 |
Dual-Tripler Scheme for Third Harmonic Generation of Broad Bandwidth |
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| JI Lai-lin,ZHU Jian,MA Wei-xin,ZHAN Ting-yu.Dual-Tripler Scheme for Third Harmonic Generation of Broad Bandwidth[J].Chinese Journal of Lasers,2006,33(10):345-1348. |
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| Authors: | JI Lai-lin ZHU Jian MA Wei-xin ZHAN Ting-yu |
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| Affiliation: | 1.Shanghai Institute of Laser and Plasma, Shanghai 201800, China; 2. Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800,China |
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| Abstract: | The dual-tripler scheme for third harmonic generation(THG) is studied by the coupled equations under the small signal and high power condition((1.5 GW/cm~2).) The design has been proved in the experiment.It found that this design can increase the third harmonic conversion efficiency of broad bandwidth,but the distance between two triplers has an important impact on the third harmonic conversion efficiency in the experiment.(19.75%) THG efficiency with chirp pulse of(3.5 nm) bandwidth at average power of (1.5 GW/cm~2) was achieved at(25 mm) optimum distance between two triples in the experiment.It will be useful to solving the problem of the large bandwidth of the THG in the high power laser system. |
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| Keywords: | nonlinear optics third harmonic generation dual-tripler bandwidth |
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