非线性光学晶体材料GaSe激光参数的模拟计算  

Numerical calculation of laser parameters of infrared nonlinear optical crystal material GaSe

作　　者：程旭东[1] 吴海信[1] 倪友保[1] 王振友[1] 黄昌保[1] 肖瑞春[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所,安徽合肥230031

出　　处：《量子电子学报》2015年第1期90-95,共6页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金资助项目(51202250);中科院方向性项目(13J131211)

摘　　要：对红外非线性光学晶体GaSe的非线性性质进行了研究.计算模拟了1.064μm、2.05μm、2.79μm泵浦情况下Ⅰ、Ⅱ类相位匹配情况下GaSe晶体的相位匹配角、有效非线性系数、走离角、允许角和泵浦波波长的关系.同时计算了晶体激光光参量震荡和倍频波波长和相位匹配角、有效非线性系数、走离角、允许角的关系.对计算结果进行了分析比较.所得结果对于GaSe晶体用于特定波长激光器设计新波段提供了理论依据.Some laser experimental parameters in infrared nonlinear optical crystal GaSe were calculated, including the illustration of phase matching angle, the varying of effective nonlinear coefficient, allowing angle, walk-off angle and Sellmeier curve for type Ⅰ and Ⅱ phase-matching. All the results were calculated in the optical parametric oscillation （OPO） and second harmonic generation （SHG）. Also, the results were analysed so that they can provide useful theoretical references for optical design of infrared tunable and new wavelength laser devices.

关 键 词：非线性光学 相位匹配 GASE 允许角 走离角 

分 类 号：O437.1[机械工程—光学工程]