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

C Zhang; D Y Shen; Y Wang; L J Qian; J Zhang; X P Qin; D Y Tang; X F Yang; T Zhao

doi:10.1364/OL.36.004767

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

Opt Lett. 2011 Dec 15;36(24):4767-9. doi: 10.1364/OL.36.004767.

Authors

C Zhang¹, D Y Shen, Y Wang, L J Qian, J Zhang, X P Qin, D Y Tang, X F Yang, T Zhao

Affiliation

¹ Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Department of Optical Science and Engineering, Fudan University, Shanghai, China.

PMID: 22179877
DOI: 10.1364/OL.36.004767

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%.