High-power polycrystalline Er:YAG ceramic laser at 1617 nm

作者：Cong Zhang, D. Y. Shen, Y. Wang, Liejia Qian, J. Zhang, Xuexin Qin, Dingyuan Tang, Xiaofang Yang, Ting Zhao · 发表于：Optics Letters · 年份：2011 · DOI：10.1364/ol.36.004767 · 被引用次数：32 · 研究领域：Solid State Laser Technologies、Advanced Fiber Laser Technologies、Photorefractive and Nonlinear Optics

We report on the efficient operation of a high-power erbium-doped polycrystalline Er:YAG ceramic laser at 1617 nm resonantly pumped by a high-power 1532 nm Er,Yb fiber laser. Lasing characteristics of Er:YAG ceramics with different Er3+ concentrations are evaluated and compared. With an output coupler of 15% transmission and 0.5 at. % Er3+-doped YAG ceramic as the gain media, the laser generates 14 W of output power at 1617 nm for 28.8 W of incident pump power at 1532 nm, corresponding to a slope efficiency with respect to incident pump power of 51.7%.