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首页> 外文期刊>Applied optics >High-efficiency generation of 355 nm radiation by a diode-end-pumped passively Q-switched Nd:YAG/Nd:YVO4 laser
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High-efficiency generation of 355 nm radiation by a diode-end-pumped passively Q-switched Nd:YAG/Nd:YVO4 laser

机译：二极管端泵浦的无源Q开关Nd：YAG / Nd：YVO4激光器高效产生355 nm辐射

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In this paper we have demonstrated an efficient generation of 355 nm radiation by a diode-end-pumped Nd:YAG/Nd:YVO4 passively Q-switched 1064 nm laser. Cr:YAG is used as a saturable absorber for pulse generation. Compared to Nd:YAG/Cr:YAG, a passively Q-switched 1064 nm laser with higher polarization ratio is obtained in an Nd:YAG/Nd:YVO4/Cr:YAG configuration, which is helpful to nonlinear frequency conversion. The maximum output power of 8.56 W at 1064 nm is obtained with the pulse repetition rate of 38.6 kHz. Under incident pump power of 25.8 W the polarization ratio of 1064 nm is more than 15:1. Type I and type II critical phase-matching lithium triborate are used as nonlinear frequency conversion crystals. A tripling harmonic-generation output power of 2.22 W at 355 nm is achieved. (C) 2016 Optical Society of America
机译：在本文中，我们证明了通过二极管端泵浦Nd：YAG / Nd：YVO4被动调Q开关1064 nm激光可以有效地产生355 nm的辐射。 Cr：YAG用作产生脉冲的可饱和吸收剂。与Nd：YAG / Cr：YAG相比，以Nd：YAG / Nd：YVO4 / Cr：YAG配置获得了具有更高偏振比的被动Q开关1064 nm激光器，这有助于非线性频率转换。以38.6 kHz的脉冲重复频率获得在1064 nm处的最大输出功率8.56W。在25.8 W的入射泵浦功率下，1064 nm的偏振比大于15：1。 I型和II型临界相匹配三硼酸锂用作非线性频率转换晶体。在355 nm处实现了2.22 W的三倍谐波生成输出功率。 （C）2016美国眼镜学会

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