Performances of a diode end-pumped GYSGG/Er,Pr:GYSGG composite laser crystal operated at 2.79 μm

Jiakang Chen; Dunlu Sun; Jianqiao Luo; Huili Zhang; Shihao Cao; Jingzhong Xiao; Hongxiang Kang; Qingli Zhang; Shaotang Yin

doi:10.1364/OE.22.023795

Performances of a diode end-pumped GYSGG/Er,Pr:GYSGG composite laser crystal operated at 2.79 μm

Opt Express. 2014 Oct 6;22(20):23795-800. doi: 10.1364/OE.22.023795.

Authors

Jiakang Chen, Dunlu Sun, Jianqiao Luo, Huili Zhang, Shihao Cao, Jingzhong Xiao, Hongxiang Kang, Qingli Zhang, Shaotang Yin

PMID: 25321958
DOI: 10.1364/OE.22.023795

Abstract

We demonstrate a comparative investigation on Er,Pr:GYSGG and GYSGG/Er,Pr:GYSGG composite crystals at 2.79 μm. Simulating results show the highest temperatures are 369 K and 318 K, respectively. A maximum output power of 825 mW with slope efficiency of 19.2% and maximum laser energy of 3.65 mJ with slope efficiency of 22.7% are obtained in the GYSGG/Er,Pr:GYSGG composite crystal, which have an obvious improvement than those of Er,Pr:GYSGG crystal. The thermal focal lengths are respectively 41 and 62 mm when the pump power is 2.5 W. All these results indicate that the GYSGG/Er,Pr:GYSGG composite crystal has great advantages in reducing the influence of thermal effects and improving laser performances.

Publication types

Research Support, Non-U.S. Gov't