High-power continuous-wave and high-energy Q-switched miniature Yb:Y_3Ga_5O_(12) crystal lasers

• 作 者: 韩文娟 王丽莎 陈晓雯 夏临华 于浩海 张怀金 刘均海
• 机 构: College of Physics, Qingdao University,Key Laboratory of Photonics Materials and Technology at the U
• 出 处: Chinese Optics Letters
• 发表日期: 2016年01期
• 关键词: switched miniature crystal lasers pumped repetition absorber switching lasing ut

We report on the continuous-wave(CW) and passive Q-switching performance of a miniature Yb:Y_3Ga_5O_(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 k W, respectively.

We report on the continuous-wave (CW) and passive Q-switching performance of a miniature Yb: Y_3Ga_5O_ (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 k W, respectively.