Journal of Crystal Growth, Vol.233, No.1-2, 233-242, 2001
Czochralski growth of six Yb-doped double borate and silicate laser materials
New Yb-doped oxides have been grown by the Czochralski method. They include borates such as Ca3Y2(BO3)(4) (CYB), Ca3Gd2(BO3)(4) (CaGB), Sr3Y(BO3)(3) (SrYBO) and Ba3Lu(BO3)(3) (BLuB) as well as the silicates Y2SiO5 (YSO), Ca2Al2SiO7 (CAS) and SrY4(SiO4)(3)O (SYS). Successful Czochralski growth is reported for the first time in the case of SrYBO. Scattering center free CAS single crystals were obtained as well. Spectroscopic evaluation reveals that all those materials should be suitable for diode pumping at 980 nm due to broad absorption lines, and operate in a quasi-3-level scheme with large crystal-field splitting of the Yb ground state manifold.