| 高效率、高峰值功率351nm准连续紫外激光器 |
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| 引用本文： | 崔建丰,高涛,张亚男,王迪,姚俊,岱钦.高效率、高峰值功率351nm准连续紫外激光器[J].红外与激光工程,2017,46(6):605004-0605004(4). |
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| 作者姓名： | 崔建丰 高涛 张亚男 王迪 姚俊 岱钦 |
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| 作者单位： | 1.沈阳理工大学 理学院,辽宁 沈阳 110159; |
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| 基金项目： | 辽宁省科技计划（2014220040）;科技部科技型中小企业技术创新基金（C262100678）;沈阳市科技计划（F16-210-6-00） |
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| 摘 要： | 报道了一台高效率、高峰值功率351 nm紫外激光器。采用激光二极管（LD）端面抽运Nd:YLF晶体声光调Q获得准连续窄脉宽1 053 nm基波振荡，腔外两块LiB3O5（LBO）晶体紧贴输出镜放置，对基频光进行二倍频和三倍频，获得了高峰值功率351 nm紫外激光输出。在LD抽运功率为14 W、声光调 Q 激光器的调制频率为1 kHz的工作条件下，基波平均输出功率为1.45 W时，得到351 nm紫外激光平均输出功率450 mW，1 053 nm基频光到351 nm紫外光转换效率高达31.04%，脉冲宽度为7.5 ns，峰值功率达60 kW，光束质量良好。
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| 关 键 词： | 激光器 351nm紫外激光器 腔外三倍频 高峰值功率 |
| 收稿时间： | 2016-10-05 |
High efficiency and high peak power 351 nm quasi-continuous ultraviolet laser |
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| Affiliation: | 1.School of Science,Shenyang Ligong University,Shenyang 110159,China;2.Anshan ZY Laser Technology Co.,Ltd,Anshan 114000,China |
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| Abstract: | A Laser Diode(LD) end-pumped Nd:YLF quasi-continuous 351 nm ultraviolet laser with high efficiency and high peak power was demonstrated under acousto-optical Q-switched operation, by using extracavity frequency-doubled and frequency-tripled with two LiB3O5(LBO) crystals cling to the output mirror. An average output power at 351 nm of 450 mW was obtained at repetition rate of 1 kHz, pumped power of 14 W and output power of fundamental wave of 1.45 W. The optical-to-optical conversion efficiency is up to 31.04% and pulse width is 7.5 ns corresponding to the peak power as high as 60 kW.The beam quality is satisfactory. |
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