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。
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 1319 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.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2005年第7期767-770,共4页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目(60278001
60278032)
国家科技部"863"计划资助项目[2002AA311190]
天津市光电子联合科学研究中心资助项目
激光技术国家重点实验室(华中科技大学)资助项目([2001]0103)
教育部南开大学-天津大学科技合作基金资助项目
关键词
红光激光器
激光二极管(LD)抽运
连续波
659.5
NM
腔内倍频
望远镜谐振腔
Cavity resonators
Continuous wave lasers
Frequency doublers
Laser beams
Mirrors
Optical pumping
Optically pumped lasers
Semiconductor lasers
