Diode-pumped passively mode-locked sub-picosecond Yb:LuAG ceramic laser

Zhu Jiang-Feng^{1, †}, Liu Kai¹, Jiang Li^{2, ‡}, Wang Jun-Li¹, Yang Yu¹, Wang Hui-Bo¹, Gao Zi-Ye¹, Xie Teng-Fei², Chao-Yu Li², Pan Yu-Bai^{2, 4}, Wei Zhi-Yi³

(color online) Output power of the 2.5 at.% Yb:LuAG ceramic laser (a) and the 15 at.% one (b) as a function of the absorbed pump power with different output couplers.