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Title: | Spectroscopic properties and diode end-pumped 2.79 μm laser performance of Er,Pr:GYSGG crystal | Authors: | Chen, Jiakang Sun, Dunlu Luo, Jianqiao Zhang, Huili Dou, Renqin Xiao, Jing-Zhong Zhang, Qingli Yin, Shaotang |
Issue Date: | 7-Oct-2013 | Project: | National Natural Science Foundation of China (Grant Nos. 91122021, 51272254, 61205173, 51172236, and 50932005). | Serial title, monograph or event: | Optics Express | Volume: | 21 | Issue: | 20 | Abstract: | 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, corresponding to a peak power of 4.8 W and slope efficiency of 18.3%. These results suggest that doping deactivator Pr3+ ions can effectively decrease the lower-level lifetime and improve the laser efficiency. | URI: | https://hdl.handle.net/10316/102692 | ISSN: | 1094-4087 | DOI: | 10.1364/OE.21.023425 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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