| 铌酸锂用于灯泵Cr-Tm:YAG激光器的调Q与调谐 |
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| 引用本文： | 孙晓泉,童忠诚,聂劲松.铌酸锂用于灯泵Cr-Tm:YAG激光器的调Q与调谐[J].红外与激光工程,2005,34(6):669-672. |
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| 作者姓名： | 孙晓泉 童忠诚 聂劲松 |
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| 作者单位： | 电子工程学院,光电系,安徽,合肥,230037;电子工程学院,光电系,安徽,合肥,230037;电子工程学院,光电系,安徽,合肥,230037 |
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| 基金项目： | 安徽省自然科学基金资助项目 |
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| 摘 要： | 为了简化激光器结构，减少腔内损耗，首次提出利用LiNbO3电光晶体较高的色散特性，实现2μm波段可调谐激光器的调Q与调谐。将LiNbO3晶体加工成单块特殊形状的棱镜，作为主动调Q器件，用于2μm波段灯泵Cr-Tm：YAG激光器，以产生巨脉冲，该棱镜还同时具有调谐的功能。将该棱镜插入室温灯泵的Cr-Tm：YAG激光器中，实现了1．95～2.08μm范围的调Q、调谐运转，重复频率为1-5Hz。实验结果表明，所提出的方法可行。
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| 关 键 词： | 2μm激光器 Cr-Tm:YAG激光器 调Q 调谐 铌酸锂晶体 |
| 文章编号： | 1007-2276(2005)06-0669-04 |
| 收稿时间： | 2005-03-10 |
| 修稿时间： | 2005-05-20 |
LiNbO3 Q-switch used as tuning element for flash-lamp pumped Cr-Tm: YAG laser |
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| SUN Xiao-quan,TONG Zhong-cheng,NIE Jin-song.LiNbO3 Q-switch used as tuning element for flash-lamp pumped Cr-Tm: YAG laser[J].Infrared and Laser Engineering,2005,34(6):669-672. |
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| Authors: | SUN Xiao-quan TONG Zhong-cheng NIE Jin-song |
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| Institution: | Department of Optical-electric Technology, Electronic Engineering Institute, Hefei 230037, China |
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| Abstract: | To minimize the elements inserted in the cavity of 2μm band tunable laser and reduce the cavity loss, a special designed prism based on the disperse property of LiNbO3 crystal was used as tuning and Q-switching element . Two faces cut at Brewster＇s angle make the prism work well as tuning element. In a flash-lamp pumped Cr-Tm：YAG 2μm laser with the LiNbO3 prism, active Q-switching operation was realized at room temperature, while the tuning range of 1.95 -2.08μm was obtained with the prism. The repetition rate of the Q-switched laser was 1-5 Hz. The experimental result shows that the Q-switching and tuning method is valid. |
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| Keywords: | 2μm laser Cr-Tm：YAG laser Q-switching Tuning LiNbO3 crystal |
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