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首页> 外文期刊>Optics Letters >High-energy quasi-phase-matched optical parametric oscillation in a periodically poled MgO:LiNbO_(3) device with a 5 mm X 5 mm aperture
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High-energy quasi-phase-matched optical parametric oscillation in a periodically poled MgO:LiNbO_(3) device with a 5 mm X 5 mm aperture

机译:孔径为5 mm X 5 mm的周期性极化MgO:LiNbO_(3)器件中的高能准相位匹配光学参数振荡

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摘要

Fabrication of a 5 mm thick periodically poled MgO-doped LiNbO_(3) device with a 32.1 (mu)m period for midinfrared generation was demonstrated. The periodic structure was evaluated by measurement of second-harmonic generation with the d_(31) coefficient. Optical parametric oscillation using this device with an uncoated 5 mm X 5 mm aperture and a 36 mm effective length realized a high-energy output of 77 mJ for both signal (wavelength 1.83 (mu)m) and idler (2.54 (mu)m) waves with a 72percent slope efficiency at 110 mJ pumping of a Q-switched Nd:YAG laser with a 12 ns pulse duration.
机译:演示了制造5mm厚,周期极化的MgO掺杂的LiNbO_(3)器件的周期,该器件的周期为32.1μm,用于中红外生成。通过测量具有d_(31)系数的二次谐波产生来评估周期结构。使用此设备的光学参量振荡,其未镀膜的5 mm X 5 mm孔径和有效长度为36 mm,对于信号(波长1.83μm)和惰轮(2.54μm)均实现77 mJ的高能量输出在110 mJ泵浦的Q开关Nd:YAG激光器以12 ns脉冲持续时间泵浦时,其斜率效率为72%

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