摘要
利用 8 0个 2 0W的二极管呈五角型阵列泵浦Nd∶YAG棒 ,采用KTP晶体 (Ⅱ类相位匹配θ =90° =2 3.6°)腔内倍频、单声光调Q装置、平凹直腔结构 ,在泵浦电流 17.5A、声光调制频率 2 0 .4kHz时获得了平均输出功率为 97W、脉冲宽度 15 0ns的准连续绿光 ;分析了泵浦功率密度及晶体内部温度是影响倍频效率的因素 。
The Nd∶YAG bar was side-pumped by eighty 20W LDs of a pentahedral radial pump geometry. Single acousto-optic Q switching and intracavity frequency doubled KTP crystal(Ⅱ phase match θ=90°=23.6°) were usedintheexperiment.AmaximumCWgreenlaseroutputpowerof97Wwasgeneratedatarepetitionrateof 20.4 kHz and the pulse width is 150 ns. Pump power density and temperature inside KTP crystal was considered as the central reason to influence SHG efficiency. And high power was obtained by tuning matching angle and strengthening cooling to KTP crystal.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2004年第9期1025-1028,共4页
Acta Photonica Sinica
基金
国家自然科学基金 (6 0 2 780 0 1)
教育部南开大学
天津大学联合研究院基金
天津市光电子联合科学研究中心(0 13184 0 11)
86 3项目 (2 0 0 2AA31190 )资助
