Of (nd (3 +), Yb (3 +)): Yp <sub> 0.1 </ Sub> V <sub> 0.9 </ Sub> O <sub> 4 </ Sub> Crystal Growth And Spectroscopic Properties Research,

LD pumped laser featuring with high-efficiency, sound quality, long lifetime, miniaturization, sound reliability and leading laser full-solidified, attracted great attentions from academic circles, industry field and military field. Therefore, it is of great importance to develop new laser crystal. At present, laser crystals doped different rare earth ions are widely applied in the field of scientific research, communications and military affairs.In this article, YVO4 and YPO4 materials were synthesized by liquild-phase reaction method. YP0.1V0.9O4 crystals doped Nd3+-ion and Yb3+-ion with different concentrations were grown by Czochraski method from YVO4-YPO4 solid-phase system. And, the technics of growing high quality crystal was studied and improved in the course of growth. After being oriented, cutted and polished, the grown－crystals was processed into a series of wafers. The distribution coefficient of RE3+(Nd3+ and Yb3＋),the refractive index and the crystal lattice were tested.Through the measured data of absorption spectrum, fluorescence spectrum and fluorescence lifetime, the spectral characteristic parameters of (Nd3+,Yb3+):YP0.1V0.9O4 crystals were calculated and contrasted, and the advandages of them have been showed. Finally, the optical quality of (Nd3+,Yb3+):YP0.1V0.9O4 crystals including the optical uniformity, the optical damage threshold and the laser performance was tested and identified. On the ground of all experimental data and analytical results, YP0.1V0.9O4 crystal doped Nd3+-ion and Yb3+-ion will have a certain extent potential in the application of LD pump in the future.