Spectroscopic properties and diode end-pumped 2.79 μm laser performance of Er,Pr:GYSGG crystal.

@article{Chen2013SpectroscopicPA,
  title={Spectroscopic properties and diode end-pumped 2.79 μm laser performance of Er,Pr:GYSGG crystal.},
  author={Jiakang Chen and Dunlu Sun and Jianqiao Luo and Huili Zhang and Renqin Dou and Jingzhong Xiao and Qingli Zhang and Shaotang Yin},
  journal={Optics express},
  year={2013},
  volume={21 20},
  pages={23425-32}
}
We demonstrate a 968 nm diode end-pumped Er,Pr:GYSGG (Gd₁.₁₇Y₁.₈₃Sc₂Ga₃O₁₂) laser at 2.79 μm operated in the pulse and continuous-wave (CW) modes. The lifetimes for the upper laser level ⁴I₁₁/ ₂ and lower level ⁴I₁₃/₂ are 0.52 and 0.60 ms, respectively. The laser produces 284 mW of power in the CW mode, corresponding to the optical-to-optical efficiency of 14.8% and slope efficiency of 17.4%. The maximum laser energy achieved is 2.4 mJ at a repetition rate of 50 Hz and pulse duration of 0.5 ms… CONTINUE READING

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