ZnGeP2-DFG中红外激光器的允许参量和输出线宽分析
nalysis of permitted parameters and output linewidth on ZnGeP2-DFG with mid-infrared laser
本文根据色散方程、能量和动量守恒，研究非线性晶体ZnGeP2（ZGP）的光参变特性，得到ZGP-DFG中红外激光器的允许参量和输出线宽的曲线。在I类和II类相位匹配条件下，对调谐过程中的允许角和走离角随波长的变化，以及ZGP晶体的有效非线性系数随波长的变化进行了数值计算和分析，对ZGP、AgGaS2（AGS）和AgGaSe2（AGSe）晶体做了分析比较，结果表明ZGP为较好的中红外激光晶体，输出光线宽随波长和泵浦光的线宽的影响较小。
ccording to the Sellmeier dispersion equation and law of energy conservation and Momentum Conservation, the effective coefficient, permitted parameters, and walk-off effect, and output linewidth of ZGP-DFG have been obtained using numerical simulation in type-I and type-II phase-matched. In addition, the corresponding characteristics of AgGaS2（AGS）and AgGaSe2（AGSe）were compared with ZGP, and the conclusion was the walk-off effect of ZGP-DFG was low, and the ZGP was a better crystal to produce the mid-infrared laser, the output linewidth was a small changed with tunable wavelength and pump linewidth.
王丽、李光
物理学晶体学光电子技术
非线性光学中红外辐射ZGP晶体允许参量输出光线宽
Nonlinear opticsmid-infrared radiationZGPpermitted parametricoutput linewidth
王丽,李光.ZnGeP2-DFG中红外激光器的允许参量和输出线宽分析[EB/OL].(2009-07-21)[2025-08-05].http://www.paper.edu.cn/releasepaper/content/200907-462.点此复制
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