L. J. Qin, X. L. Meng, C. L. Du, Z. S. Shao, L. Zhu, B. C. Xu, H. J. Zhang: Growth of Nd:GdVO<SUB>4</SUB> Single Crystal and its Laser Output at 1062 nm, 1342 nm

Crystal Research and Technology

Cryst. Res. Technol. 37 (2002) 913 - Abstract -

L. J. Qin, X. L. Meng, C. L. Du, Z. S. Shao, L. Zhu, B. C. Xu, H. J. Zhang

State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan, 250100, P. R. China

Growth of Nd:GdVO₄ Single Crystal and its Laser Output at 1062 nm, 1342 nm

A new liquid-phase method synthesizing Nd:GdVO₄ polycrystalline materials was introduced. High optical quality Nd:GdVO₄ single crystals have been successfully grown by the Czochralski method. The effective segregation coefficients of Nd ion in Nd:GdVO₄ crystal have been measured and discussed.Laser outputs at 1062 nm and at 1342 nm were achieved when Nd:GdVO₄ crystal samples of 0.52 at% Nd concentration were pumped by a high-power LD. A maximum output of 14.5 W at 1062 nm has been obtained when the pump power is to 26 W, giving the slope efficiency of 63%. It is reported the first time that up to 4.64 W power laser at 1342 nm has been achieved with optical conversion efficiency of 31.4% and slope efficiency of 32.9%.

Keywords: Czochralski method, Nd:GdVO4 crystal, segregation coefficients, spectra, diode-pumped, laser properties

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