16通抽运微通道冷却Yb:YAG薄片激光器  

16-pass pumped micro-channel cooled Yb:YAG thin disk lasers

作　　者：马毅[1] 王春华[1] 王卫民[1] 涂波[1] 李奇峰[1] 石勇[1] 

机构地区：[1]中国工程物理研究院应用电子学研究所,绵阳621900

出　　处：《激光技术》2011年第1期82-85,共4页Laser Technology

摘　　要：为了研究Yb:YAG薄片激光器的性能,采用16通抽运耦合、微通道冷却的方法,对薄片的优化厚度、热力学特性和激光性能等进行了理论分析,利用直径10mm、厚度为250μm、掺杂原子数分数为0.1的Yb:YAG薄片进行了实验验证,抽运耦合系统实现了对薄片的16通抽运,在抽运功率为81.9W时,获得了平均功率为24.4W的激光输出,光光转换效率达到了29.8%。结果表明,多通抽运微通道冷却Yb:YAG激光器可以获得较高的光光转换效率。In order to study the performance of an Yb：YAG thin disk laser, a 16-pass pumped micro-channel cooled scheme was adopted. The optimum thickness of the Yb：YAG disk, the thermo-mechanical effect in the disk and the laser performance are analyzed. The 16-pass pumping coupling is achieved in preliminary experiment using an Yb：YAC disk （250μm in thickness and 10mm in diameter） with atomic fractional 0. 1 doping concentration. The output power of 24.4W was obtained from the laser oscillator when the total pump power was 81.9W. The optical-to-optical conversion efficiency was up to 29. 8%. The result shows that the higher conversion efficiency can be achieved in the 16-pass pmnped micro-channel cooled Yb：YAC thin disk laser.

关 键 词：激光器 薄片参量优化 微通道冷却器 性能估算 

分 类 号：TN248.1[电子电信—物理电子学]