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Highly Efficient Continuous-Wave Mid-Infrared Intracavity Singly Resonant Optical Parametric Oscillator Based on MgO:PPLN
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We present a compact all-solid-state cw mid-infrared intracavity singly resonant optical parametric oscillator (OPO) that is based on a self-fabricated 1-mm-thick 40-mm-long doped MgO periodically poled lithium niobate (MgO:PPLN). At a diode pump power of 15.6 W, the compact intracavity Nd:YVO4/MgO:PPLN OPO produced 1.9 W output power at 3.19μm, corresponding to conversion efficiency of 12.2% from the laser diode pump to OPO idler output. 相似文献
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研究了温度调谐下周期极化镁掺杂铌酸锂晶体的红外光参量振荡特性。采用外电场短脉冲极化技术,在大小为7.0mm×50.0mm×1.0mm的Z切高镁掺杂(摩尔分数0.05)铌酸锂上制备出了准相位匹配光学微结构器件,极化周期为30.0μm。以输出波长为1064nm的声光调QNd:YAG固体激光器作为基频泵浦光开展了光参量振荡研究。实验表明:泵浦该PPMgLN晶体,实现了室温下低阈值红外光参量振荡产生,阈值功率仅为45mW(重复频率1kHz)。在泵浦输入功率为225mW时,有36mW信号光输出,转换效率达到16.0%,通过调谐晶体温度(20~180℃),获得了调谐范围为1503~1550nm波段的OPO信号光,实现了低阈值可调谐红外光的稳定输出。 相似文献
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