Loza-Alvarez P, Brown C T, Reid D T, Sibbett W, Missey M
Opt Lett. 1999 Nov 1;24(21):1523-5. doi: 10.1364/ol.24.001523.
We describe a synchronously pumped femtosecond optical parametric oscillator based on periodically poled LiNbO(3) that is broadly tunable in the mid infrared. A transmission window of periodically poled lithium niobate beyond the conventionally accepted infrared absorption edge of 5.4 mum has been exploited to produce idler pulses that are tunable across a wavelength range of 4 mum , with milliwatt-level output powers at wavelengths as long as 6.8 mum . We also present experimental tuning results that are in good agreement with the theoretical phase matching predicted from published infrared-corrected Sellmeier equations for LiNbO(3) .
我们描述了一种基于周期性极化铌酸锂（LiNbO₃）的同步泵浦飞秒光学参量振荡器，它在中红外波段具有广泛的可调谐性。利用了周期性极化铌酸锂超过传统公认的5.4μm红外吸收边缘的一个透射窗口，以产生在4μm波长范围内可调谐的闲频脉冲，在长达6.8μm的波长处具有毫瓦级的输出功率。我们还给出了实验调谐结果，这些结果与根据已发表的LiNbO₃红外校正Sellmeier方程预测的理论相位匹配结果吻合良好。
