【摘要】 报道了用Ⅱ类相位匹配KTP(相位匹配角选为θ=59.9°,Φ=0°)对激光二极管(LD)侧向抽运的Nd:YAG腔内倍频的红光激光器。通过分析大功率抽运Nd:YAG棒热透镜效应的影响,优化设计了三镜折叠腔参数。采用镜片镀膜的方法使Nd:YAG工作在1319nm波长,经腔内倍频获得单一波长659.5nm的红光激光。在抽运电流13A和输出镜曲率半径为200mm时,达到1.2W的红光连续波输出。更多还原

【Abstract】 This paper reports the side pumped Nd:YAG CW red laser radiation at 659.5 nm by intracavity frequency-doubling with a KTP crystal(type Ⅱ phase match,θ=59.9°,Φ=0°).The effect of thermal lens relevant to the laser crystal is analyzed and parameters of the three-mirror folded cavity are optimized.To realize the oscillation of single wavelength of 1 319 nm in Nd:YAG,the reflectivities of mirrors of the resonator are designed,which also lead to the achievement of single wavelength of SHG.The generation of 1.2 W of the CW red laser beam is obtained with 13 A pumped current and a output mirror of 200 mm curvature radius.更多还原