Optical transitions in Ho3+ doped La3Ga5SiO14 crystals

Ho3+:La3Ga5SiO14 (LGS) single crystals with good optical quality were grown by Czochralski method. Its absorption and emission spectra were measured at room temperature. Based on the Judd–Ofelt theory, the following spectral parameters have been obtained: intensity parameters Ωt (t = 2, 4, 6), Ω2 = 1.85 × 10−20 cm2, Ω4 = 0.32 × 10−20 cm2 and Ω6 = 0.56 × 10−20 cm2, radiative transition probabilities AJ′,J″, the oscillator strength of the absorption/emission band. The radiative lifetime, the fluorescence branching ratios and the value of integrated emission cross-sections are also calculated.