激光二极管侧面抽运的Nd:YAG薄片激光器  

Laser Diode Array Side Pumped Nd:YAG Thin Disk Laser

作　　者：李强[1] 蔡艳芳[1] 姜梦华[1] 雷訇[1] 冯驰[1] 晏乐仑[1] 

机构地区：[1]北京工业大学激光工程研究院,北京100124

出　　处：《中国激光》2009年第7期1793-1797,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金(60678014)资助课题

摘　　要：报道了激光二极管(LD)侧面抽运的Nd:YAG薄片激光器。对影响侧面抽运薄片激光器性能的主要因素,即圆薄片增益介质内晶体光分布和沿径向的温度分布进行了理论分析和实验。实现了光-光转换效率为33.5%,峰值功率为230 W,光束参数乘积为21.6 mm·mrad的激光输出。实验结果表明,侧面抽运在薄片Nd:YAG晶体内可实现对称均匀的分布,沿径向的温度差大大减小;Nd:YAG/YAG薄片晶体的复合可满足侧面抽运的要求。这些技术和方法可应用于更高功率的侧面抽运薄片激光器。A diode array side pumped Nd： YAG thin disk laser was reported, and the light distribution of doped crystal and temperature distribution of the radial were studied theoretically and experimentally. The output laser peak power of 230 W, opt.-opt, efficiency of 33.5 % and beam parameter product of 21.6 mm · mrad were obtained. The results of experiment showed that side pumped Nd： YAG thin disk laser could realize light uniform distribution, and decrease temperature difference of radial significantly. And composited Nd： YAG/YAG cryatal could satisfy the requirements of side pumped thin disk laser. These techniques and methods could apply to higher power side pumped thin disk laser.

关 键 词：激光器 ND:YAG薄片激光器 侧面抽运 效率 光束参数乘积 

分 类 号：TN241[电子电信—物理电子学]