【摘要】 根据对 2 .1 μm波长Cr ,Tm ,Ho∶YAG激光器输出特性的实验研究 ,详细分析了腔长、输出镜透过率、全反镜曲率半径和水温等因素对激光器输出的影响。在镀银腔情况下 ,重频 5Hz时 ,激光阈值为 4 7J,斜效率为 1 .3% ,输入能量为 1 4 4J时 ,最大输出为 7.9W。重频 1 0Hz时 ,激光阈值为 4 5J,斜效率为 1 .1 % ,输入能量为 1 2 1J时 ,最大输出为 9.7W。更多还原

【Abstract】 According to a lot of experimental research to Cr,Tm,Ho∶YAG laser operating at 2.1μm wavelength,the factors effecting on the output characteristics,such as cavity length,transparent index of output mirror,the radius of high reflectivity concave mirror and cooling temperatures,are discussed.Using the cavity with silver,whose frequency is 5Hz,the laser threshold ,slope efficiency and output maximum energy are 47J,1.3% and 1.6J respectively. Meanwhile,when whose frequency is 10Hz,the laser threshold ,slope efficiency and output maximum energy are 45J,1.1% and 0.97J respectively.更多还原