LiLuF4 single crystals co-doped with thulium (5%) and holmium (0.5%), having large size, intact shape, and high optical quality, are successfully grown by the Czochralski technique. Absorption and fluorescence spectra of the crystal are measured. The absorption spectrum shows that the main absorption band locates at near 686 and 792 nm and the °uorescence spectrum peaks at 2.05 \mu m. At room temperature, the as-grown Tm, Ho: LiLuF4 single crystals are end-pumped by a fiber