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高功率中红外3.8 μm激光器

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谢刚, 彭跃峰, 王卫民, 武德勇. 2009: 高功率中红外3.8 μm激光器, 强激光与粒子束, 21(7): 970-972.
引用本文: 谢刚, 彭跃峰, 王卫民, 武德勇. 2009: 高功率中红外3.8 μm激光器, 强激光与粒子束, 21(7): 970-972.
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Xie Gang, Peng Yuefeng, Wang Weimin, Wu Deyong. 2009: Experimental investigation of high-power mid-infrared 3.8 μm laser, High Power Lase and Particle Beams, 21(7): 970-972.
Citation: Xie Gang, Peng Yuefeng, Wang Weimin, Wu Deyong. 2009: Experimental investigation of high-power mid-infrared 3.8 μm laser, High Power Lase and Particle Beams, 21(7): 970-972.
shu

高功率中红外3.8 μm激光器

  • 中国工程物理研究院,应用电子学研究所,四川,绵阳,621900

Experimental investigation of high-power mid-infrared 3.8 μm laser

  • 摘要: 采用1.06 μm激光泵浦准相位匹配周期极化铌酸锂(PPMgLN)晶体光参量振荡器,实现高功率高效率高重复频率3.84 μm中红外激光输出.泵浦源为椭圆光斑1.06 μm激光,PPMgLN晶体MgO摩尔分数为5%,光参量振荡器为外腔单谐振结构,采用e→e+e相位匹配,利用了PPMgLN晶体的最大非线性系数.在1.06 μm激光功率为73 W,声光Q开关工作频率为7.5 kHz的条件下,获得平均功率8.3 W,波长3.84 μm激光输出,光-光转换斜率效率14.1%,水平和垂直方向光束质量平方因子分别为1.94,4.57.
    Abstract: A high-average-power high-efficiency high-repetition-rate mid-infrared laser at 3.84 m was demonstrated.The laser was based on quasi-phase-matched periodically poled LiNbO3(PPMgLN) optical parametric oscillator(OPO),pumped by elliptical 1.06 m laser beam.The PPMgLN crystal was 5% MgO-doped.The OPO was extra-cavity and sigle-resonated OPO.The pump beam polarization matched e→e+e interaction in PPMgLN,thus maximal nonlinear coefficient d33 was effective.When pump power was 73 W at acoustic-optic Q-switch repetition rate 7.5 kHz,8.3 W average output power at 3.84 μm was obtained with slope efficiency 14.1%.The M2 factors were 1.94,4.57 in horizontal and perpendicular direction,respectively.
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  • 刊出日期:  2009-07-30

高功率中红外3.8 μm激光器

  • 中国工程物理研究院,应用电子学研究所,四川,绵阳,621900

摘要: 采用1.06 μm激光泵浦准相位匹配周期极化铌酸锂(PPMgLN)晶体光参量振荡器,实现高功率高效率高重复频率3.84 μm中红外激光输出.泵浦源为椭圆光斑1.06 μm激光,PPMgLN晶体MgO摩尔分数为5%,光参量振荡器为外腔单谐振结构,采用e→e+e相位匹配,利用了PPMgLN晶体的最大非线性系数.在1.06 μm激光功率为73 W,声光Q开关工作频率为7.5 kHz的条件下,获得平均功率8.3 W,波长3.84 μm激光输出,光-光转换斜率效率14.1%,水平和垂直方向光束质量平方因子分别为1.94,4.57.

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