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  Physics Express 2012, 2: 3
  Research Article
Continuous-wave laser operation of Nd:YxGd1?xVO4 mixed vanadates oscillating at 912-914 nm
  W. Hana, Sh. Hana, X. Tiana, J. Liua, H. Zhangb, H. Yub, Sh. Wangc, J. Lic  
a College of Physics, Qingdao University, Ning-Xia Road 308, Qingdao 266071, China
b State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
c Crystech Incorporation, Zhu-Zhou Road 177, Qingdao 266101, China

  Continuous-wave laser oscillation at 912-?914 nm has been demonstrated at room temperature with a class of Nd:YxGd1?xVO4 (x = 0.17, 0.37, 0.53, and 0.80) mixed vanadates, by utilizing a compact plano-concave resonator end pumped by a high-brightness fiber-coupled diode. An output power of 0.4 W is generated with a 2.2-mm thick uncoated Nd:Y0.53Gd0.47VO4 crystal with a pump power of 2.95 W absorbed, the optical-to-optical and slope efficiencies being 13.6% and 24%, respectively.
  Mixed vanadates; Nd lasers; Quasi-three-level operation  

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