| 高效率紧凑紫外355nm激光器 |
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| 引用本文： | 李斌.高效率紧凑紫外355nm激光器[J].光电子．激光,2010(9):1283-1286. |
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| 作者姓名： | 李斌 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院激光与光电子研究所光电信息技术科学教育部重点实验室;长春理工大学; |
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| 基金项目： | 国家自然科学基金资助项目(60978021); 国家“863”计划资助项目(2007AA06Z420); 高等学校博士学位基金资助项目(20070056086); 博士后科学基金资助项目(20090450760) |
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| 摘 要： | 报道一种激光二极管(LD)端面抽运的Nd:YAG激光晶体腔外三倍频355 nm紫外激光器,实验中采用声光调Q技术,选用结构紧凑的平平腔结构,在腔外对1 064 nm基波采用了Ⅰ类相位匹配Li3B3O5(LBO)晶体二倍频、Ⅱ类相位匹配LBO晶体实现了三倍频,获得了较好的光束质量的准连续355 nm紫外激光输出,在激光二极管泵浦功率为28 W时,声光Q开关调制频率为10 kHz时,获得了8.1 W的红外1 064 nm红外激光,紫外单脉冲能量165μJ,脉宽6 ns,峰值功率27.5 kW,808 nm到355 nm的光-光转换率为5.89%,整个系统长度控制在150 mm以内,该激光器结构紧凑,适合产品化。
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| 关 键 词： | LD端面抽运 Nd:YAG 声光Q开关 LBO 紫外激光 |
High efficiency,compact UV 355 nm laser |
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| LI Bin.High efficiency,compact UV 355 nm laser[J].Journal of Optoelectronics·laser,2010(9):1283-1286. |
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| Authors: | LI Bin |
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| Affiliation: | LI Bin1,CUI Hai-xia1,2,DING Xin1,XU De-gang1,YAO Jian-quan1,ZHANG Fan1(1.Institute of Laser , Optoelectronics,College of Precision Instrument , Optoelectronics Engineering,Key Laboratory of Optoelectric Information Science , Technology of EOM,Tianjin University,Tianjin 300072,China,2.Changchun University of Science , Technology,Changchun,130022 China) |
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| Abstract: | A LD end-pumped Nd:YAG,all-solid-state ultraviolet laser is demonstrated under acousto-optic Q-switch operation,by using a simple and compact flat-flat cavity resonator,with type Ⅰ phase-match LiB3O5(LBO) as secong harmonic generation crystal and type Ⅱ phase-matched LBO as third harmonic generation crystal.With an input pump power of 28 W,average power of 8.1 W at 1 064 nm was generated with the repetition rate 10 kHz.Using the extra-cavity frequency conversion of critical phase match LBO crystal,2.4 W second harmonic radiation at 532 nm was obtained,after frequency tripling 1.65 W of 355 nm laser with single pulse energy 165 μJ and pulse width 6 ns was obtained,the peak power of 355 nm laser was up to 27.5 kW. |
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| Keywords: | LD end pumped Nd:YAG A-O Q switch LBO UV laser |
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