The equation that determines the function of optimum reflection Rk of the output coupling mirror M1 versus pump power, dye concentration, and loss is deduced.

推导了耦合输出镜最佳反射率和泵浦功率损耗，浓度等参量的关系。

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And we discuss the effect of the coupling mirror with different reflectivity and PPKTP crystal's thermal lensing effect led by linear absorption to the conversion efficiency.

同时试验对不同反射率的耦合腔镜以及倍频晶体ppktp的线性吸收对倍频效率的影响做出了深入讨论。

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A novel solar illumination system consisting of strip plane mirror array collecting sunlight, light pipe, coupling mirror and grinded plastic tray scattering light was introduced.

提出一种采光面积大、结构简单、制作容易、维修方便的平面反光镜阵列汇聚采光，导光管传光，平面镜耦合，磨砂塑料盘散光的新型太阳光照明系统。

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