Hao Qiang, Li Wenxue, Pan Haifeng, Zhang Xiaoyi, Jiang Benxue, Pan Yubai, Zeng Heping
State Key Laboratory of Precision Spectroscopy, and Department of Physics, East China Normal University, Shanghai 200062, China.
Opt Express. 2009 Sep 28;17(20):17734-8. doi: 10.1364/OE.17.017734.
We demonstrated a high-power continuous-wave (CW) polycrystalline Yb:YAG ceramic laser pumped by fiber-pigtailed laser diode at 968 nm with 400 mum fiber core. The Yb:YAG ceramic laser performance was compared for different Yb(3+) ion concentrations in the ceramics by using a conventional end-pump laser cavity consisting of two flat mirrors with output couplers of different transmissions. A CW laser output of 40 W average power with M(2) factor of 5.8 was obtained with 5 mol% Yb concentration under 120 W incident pump power. This is to the best of our knowledge the highest output power in end-pumped bulk Yb:YAG ceramic laser.
我们展示了一种由尾纤耦合激光二极管在968 nm波长、400μm光纤芯径下泵浦的高功率连续波（CW）多晶Yb:YAG陶瓷激光器。通过使用由两个平面镜和不同透过率输出耦合器组成的传统端面泵浦激光腔，比较了陶瓷中不同Yb(3+)离子浓度下Yb:YAG陶瓷激光器的性能。在120 W入射泵浦功率下，5 mol% Yb浓度时获得了平均功率为40 W、M²因子为5.8的连续波激光输出。据我们所知，这是端面泵浦块状Yb:YAG陶瓷激光器中的最高输出功率。
