Abstract
A series of LiNbO 3:Fe:Mn:Zr crystals with different ratios of Li/Nb in the melt (0.94,1.05,1.20 and 1.38, respectively) were grown by the conventional Czochralski technique. The ultraviolet–visible spectra were measured in order to analyze the defect structure of the crystals. The measurement of the Zr concentrations and Li/Nb ratios in the crystals was carried out with an inductively coupled plasma atomic emission spectrometer. The light-induced scattering was investigated as a function of exposure energy. The results showed that the ability to resist the light-induced scattering was improved considerably with the increase of the Li/Nb ratio. The relationship between the defect structures and the light-induced scattering was discussed.
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