Diode-Pumped Long-Pulse-Width Tm:YAG Laser at Room Temperature

作者:Wu C T*; Ju Y L; Wang Z G; Wang Q; Wang Y Z
来源:Laser Physics, 2010, 20(1): 192-196.
DOI:10.1134/S1054660X10010202

摘要

We report the pulsed-diode-pumped and acoustics-optically Q-switched operation of a long-pulse-width Tm:YAG laser at room temperature. Output energy for single pulse of 48 mJ is obtained under the incident pump energy of 217.3 mJ, corresponding to a slope efficiency of 30.2% and an optical conversion efficiency of 22.1%. For the Q-switched regime, maximum pulse energy of 3.25 mJ and the pulse width of 232.8 ns at the repetition rate of 30 Hz are achieved. The wavelength of the Q-switched laser is 2.013 mu m. A beam quality factor of M(2)<1.4 is measured using the traveling 90/10 knife-edge method.