title: High-power polycrystalline Er:YAG ceramic laser at 1617 nm.
abstract: 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%.
authors.affiliation: Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Department of Optical Science and Engineering, Fudan University, Shanghai, China.
authors.forename: C
authors.initials: C
authors.lastname: Zhang
authors.forename: D Y
authors.initials: DY
authors.lastname: Shen
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: L J
authors.initials: LJ
authors.lastname: Qian
authors.forename: J
authors.initials: J
authors.lastname: Zhang
authors.forename: X P
authors.initials: XP
authors.lastname: Qin
authors.forename: D Y
authors.initials: DY
authors.lastname: Tang
authors.forename: X F
authors.initials: XF
authors.lastname: Yang
authors.forename: T
authors.initials: T
authors.lastname: Zhao