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Low-pump-threshold continuous-wave singly resonant optical parametric oscillator

机译:低泵阈值连续波单谐振光参量振荡器

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We describe a compact all-solid-state continuous-wave singly resonant optical parametric oscillator (SRO) with a minimal pump-power requirement. The SRO is based on periodically poled LiNbO3 as the nonlinear material and is pumped by a 1-W diode-pumped Nd:YVO4 minilaser at 1.064 mu m. By exploiting the intracavity pumping technique in a 50-mm crystal, we have achieved SRO operation threshold at a diode pump power of only 310 mW. At 1 W of input diode power, the SRO delivers 70 mW of output power in the nonresonant idler at 3.66 mu m, at a photon conversion efficiency of 55%. Multiparameter tuning of the SRO yields a signal wavelength range from 1.45 to 1.60 mu m and an idler wavelength range from 3.16 to 4.02 mu m in the mid infrared. The device is characterized by robust turnkey operation and long-term amplitude-stable performance. (C) 1998 Optical Society of America. [References: 6]
机译:我们描述了一种紧凑的全固态连续波单谐振光参量振荡器(SRO),具有最低的泵浦功率要求。 SRO基于周期性极化的LiNbO3作为非线性材料,并由1.06μm的1-W二极管泵浦Nd:YVO4微型激光器泵浦。通过在50 mm晶体中利用腔内泵浦技术,我们在仅310 mW的二极管泵浦功率下实现了SRO操作阈值。在输入二极管功率为1 W时,SRO在3.66μm的非谐振惰轮中提供70 mW的输出功率,光子转换效率为55%。 SRO的多参数调谐在中红外范围内产生的信号波长范围为1.45至1.60μm,空转波长范围为3.16至4.02μm。该器件的特点是强大的交钥匙操作和长期的幅度稳定性能。 (C)1998年美国眼镜学会。 [参考:6]

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