Investigation on 1.3 μm laser performance with Nd:Gd0.69Y0.3TaO4 and Nd:Gd0.68Y0.3NbO4 mixed crystals

RenPeng Yan; Chuang Zhao; Xudong Li; Kang Li; Xin Yu; Wenming Yao; Fang Peng; Qingli Zhang; Renqin Dou; Jing Gao; Nigel Copner

doi:10.1364/OE.26.015785

Investigation on 1.3 μm laser performance with Nd:Gd_0.69Y_0.3TaO₄ and Nd:Gd_0.68Y_0.3NbO₄ mixed crystals

Opt Express. 2018 Jun 11;26(12):15785-15792. doi: 10.1364/OE.26.015785.

Authors

RenPeng Yan, Chuang Zhao, Xudong Li, Kang Li, Xin Yu, Wenming Yao, Fang Peng, Qingli Zhang, Renqin Dou, Jing Gao, Nigel Copner

PMID: 30114834
DOI: 10.1364/OE.26.015785

Abstract

Laser performances around 1.3 μm are investigated in 879 nm laser diode (LD) end pumped Nd³⁺ doped mixed crystals with Nd:Gd_0.69Y_0.3TaO₄ and Nd:Gd_0.68Y_0.3NbO₄ crystals for the first time to our best knowledge. The maximum average power in LD end pumped Nd:Gd_0.69Y_0.3TaO₄ 1328 nm laser reaches 435 mW at 50 Hz with an optical-to-optical efficiency of 5.0% and a slope efficiency of 6.9%. In comparison, the highest average power of LD end pumped Nd:Gd_0.68Y_0.3NbO₄ laser at 1337 nm is 190 mW at 50 Hz, corresponding to an optical-to-optical efficiency of 3.5% and a slope efficiency of 4.2%.