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Ce-doped lithium niobate (LiNbO3) single crystals were grown from the melts with various Li/Nb molar ratios (0.750, 0.850, 0.946, 1.100, 1.250 and 1.380) by Czochralski method, while doping concentration of Ce was 0.1 mol%. Infrared spectra (IR) and Ultra