种子注入双共振PPMgLN光参量振荡器

发布时间：2018-01-09 20:32

本文关键词：种子注入双共振PPMgLN光参量振荡器　出处：《中国激光》2017年08期 　论文类型：期刊论文

【摘要】：报道了一种种子注入式PPMgLN外腔双共振环形腔光参量振荡器。抽运光偏振方向在PPMgLN晶体(MgO物质的量分数为5%)内满足e→e+e相位匹配,有效利用了晶体的最大非线性系数d33(25pm·V-1)。以重复频率为400Hz、功率为556mW、波长为1064nm的单频脉冲激光作为抽运源,在晶体极化周期为30.5μm、温度为110℃的条件下,获得了平均功率为79mW的1.57μm信号光和平均功率为38.5mW的3.3μm空闲光输出,抽运光-参量光的总转换效率可达22%。采用种子激光注入技术获得了单频窄线宽参量光输出,实验测得1.57μm信号光输出的线宽小于100 MHz,10min内频率漂移不超过141 MHz。
[Abstract]:A seed injection type PPMgLN external cavity double resonance ring cavity optical parametric oscillator. The pump light polarization direction in PPMgLN crystal (MgO molar fraction of 5%) in the e to meet e+e phase matching, the effective use of the nonlinear coefficient of d33 crystal (25pm - V-1). The repetition rate is 400Hz that power is 556mW and the wavelength of 1064nm single frequency pulse laser as pumping source in the crystal polarization cycle is 30.5 m, the temperature is 110 DEG C under the condition, the average power of 1.57 M signal light 79mW and average power of 38.5mW is 3.3 m idle light output, the total conversion of pumping light - parametric light efficiency can reach 22%. by seed laser injection technology to obtain a single frequency narrow linewidth of parametric light output, measured linewidth of 1.57 M signal light output is less than 100 MHz, the frequency drift in 10min is less than 141 MHz.

【作者单位】：中国科学院上海光学精密机械研究所空间激光信息传输与探测技术重点实验室;中国科学院大学;
【基金】：国家自然科学基金(61475170,61505230) 上海市自然科学基金(12ZR1435100)
【分类号】：TN753.91
【正文快照】： 1.5~1.6μm和3~5μm波段是光学频谱中非常重要的大气光学窗口。其中,3~5μm波段是大气衰0801003-1减最小的红外窗口,且该波段覆盖水分子及大部分工业污染气体(CH4、C3H8、HCl、HF、H2S等)的吸收峰,因此,该波段的激光在工业气体探测、激光医疗、激光雷达、光电对抗等领域具有十

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