| Cr4+:YAG被动调Q4倍频全固态紫外激光器的研究 |
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| 引用本文： | 周城,叶子青,郑权,薛庆华,钱龙生.Cr4+:YAG被动调Q4倍频全固态紫外激光器的研究[J].激光技术,2003,27(4):339-341. |
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| 作者姓名： | 周城 叶子青 郑权 薛庆华 钱龙生 |
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| 作者单位： | 1.济南大学理学院, 济南, 250022; |
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| 基金项目： | 国家八六三计划支持项目. |
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| 摘 要： | 设计了LD泵浦Cr4+:YAG被动调Q的全固态Nd:YAG脉冲红外激光器。腔外首先经过焦距为100mm的聚焦透镜,将 1064nm的红外激光耦合到长为9mm的KTP2倍频晶体中,得到平均功率为29mW的脉冲绿光。然后将532nm的脉冲绿光经过焦距为30mm的聚焦透镜,耦合到长为4mm的BBO4倍频晶体上,获得了峰值功率为7.3W,平均功率为1.1mW,重复频率为12.5kHz,脉冲宽度为 12ns的266nm紫外激光,其绿光 紫外光的转换效率为3.8%,红外光紫外光的转换效率为0.7%。
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| 关 键 词： | 紫外激光器 4倍频 全固体激光器 Cr4+∶YAG |
| 文章编号： | 1001-3806(2003)04-0339-03 |
| 收稿时间： | 2002/8/12 |
| 修稿时间： | 2002年8月12日 |
Investigation for passively Q-switched Cr4+:YAG all-solid-state ultraviolet laser of fourth-harmonic generation |
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| Abstract: | Passively Q-switched Cr4+∶YAG/Nd∶YAG all-solid-state infrared laser,pumped by a diode laser,was designed.Then with a lens of 100mm focal length focusing the 1064nm IR laser to a 9mm KTP second-harmonic generation crystal,a green laser pulse was obtained with average output power of 29mW.At last,with a lens of 30mm focal length focusing the 532nm green laser to a 4mm length of BBO fourth-harmonic generation crystal,an ultraviolet laser pulse at 266nm was obtained with peak power of 7.3W,average output power of 1.1mW,repetition rate of 12.5kHz,pulse duration of 12ns.Ratio of green-ultraviolet power conversion is 3.8%,and that of infrared-ultraviolet power conversion is 0.7%. |
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| Keywords: | ultraviolet laser fourth harmonic generation all-solid-state laser " target="_blank">4+：YAGzz')" href="#"> Cr4+：YAG |
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