Efficient Q-switched Tm:YAG ceramic slab laser.
Characteristics of Tm:YAG ceramic for high efficient 2-μm lasers are analyzed. Efficient diode end-pumped continuous-wave and Q-switched Tm:YAG ceramic lasers are demonstrated. At the absorbed pump power of 53.2W, the maximum continuous wave (cw) output power of 17.2 W around 2016 nm was obtained with the output transmission of 5%. The optical conversion efficiency is 32.3%, corresponding to a slope efficiency of 36.5%. For Q-switched operation, the shortest width of 69 ns was achieved with the pulse repetition frequency of 500 Hz and single pulse energy of 20.4 mJ, which indicates excellent energy storage capability of the Tm:YAG ceramic.
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China.
Shuaiyi
S
Zhang
Mingjian
M
Wang
Lin
L
Xu
Yan
Y
Wang
Yulong
Y
Tang
Xiaojin
X
Cheng
Weibiao
W
Chen
Jianqiu
J
Xu
Benxue
B
Jiang
Yubai
Y
Pan
D002516:Ceramics / Q000737:chemistry*; D017076:Computer-Aided Design; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*