Chinese Optics Letters, 2016, 14 (1): 011407, Published Online: Aug. 6, 2018
High-power continuous-wave and high-energy Q -switched miniature Yb:Y3Ga5O12 crystal lasers
Abstract
We report on the continuous-wave (CW) and passive Q -switching performance of a miniature Yb : Y 3 Ga 5 O 12 crystal laser end pumped by a 935-nm diode laser. A maximum CW output power of 12.03 W is produced with an optical-to-optical efficiency of 54.4%, while the slope efficiency is 63%. In the passively Q -switched operation achieved with a Cr 4 + : YAG saturable absorber, an average output power of 2.12 W at 1025.2 nm is generated with a slope efficiency of 46% at a pulse repetition rate of 5.0 kHz. The pulse’s energy, duration, and peak power are 424 μJ, 2.3 ns, and 184.3 kW, respectively.
Wenjuan Han, Lisha Wang, Xiaowen Chen, Linhua Xia, Haohai Yu, Huaijin Zhang, Junhai Liu. High-power continuous-wave and high-energy