Abstract
We report the electro-optic properties in iron-doped LiNbO 3 crystals. We investigated samples with various crystal compositions and the same doping concentration. The value of the electro-optic coefficient r c monotonously decreases with respect to the crystal composition. To separate the influence of the intrinsic defects related to the non-stoichiometry and the effect of the introduction of iron, we compared the results with data obtained in pure LiNbO 3 crystals. The effect of Fe ions on the composition of the crystal and the electro-optic properties is discussed from their site occupation in LiNbO 3 lattice.
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