Chinese Optics Letters, 2018, 16 (10): 101401, Published Online: Oct. 12, 2018
A design of a surface-doped Yb:YAG slab laser with high power and high efficiency Download: 1053次
Abstract
We demonstrate a high-efficiency and high-power quasi-three-level laser based on a trapezoidal composite slab architecture with a 270 μm-thick Yb-doping surface. The design of a surface-doped slab architecture, temperature effects, laser oscillator model, and laser oscillator experiments with a surface-doped slab as a laser host medium have been presented. By theoretical calculation, the temperature rise in the surface-doped slab is only one seventh of that in the bulk-doped slab at the same maximum pump power of 30 kW. Finally, in the laser oscillator experiments, an output energy of 21.6 J is obtained when the pump energy is 48 J with a repetition rate of 5 Hz and a pulse width of 1 ms. The optical-optical efficiency is 45%.
Jiao Liu, Yang Liu, Xiaojun Tang, Chao Wang, Lei Liu, Lu Chen, Ning Li, Ke Wang, Xingbo Liang, Kunpeng Lü, Xue Yang, Hong Zhao, Nianjiang Chen. A design of a surface-doped Yb:YAG slab laser with high power and high efficiency[J]. Chinese Optics Letters, 2018, 16(10): 101401.