Electro-optic properties in Fe-doped LiNbO₃ crystals as a function of composition

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• 作者：Chah ; K. ; Aillerie ; M. ; Fontana ; M.D. ; Malovichko ; G.
• 关键词：78.20.Jq ; 61.72.&minus ; y
• 刊名：Optics Communications
• 出版年：2000
• 期刊代码：50_00304018
• 类别：ph
• 出版时间：March 15, 2000
• 卷：176
• 期：1-3
• 页码：261-265
• 文件大小：115 K

摘要

We report the electro-optic properties in iron-doped LiNbO₃ 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 LiNbO₃ crystals. The effect of Fe ions on the composition of the crystal and the electro-optic properties is discussed from their site occupation in LiNbO₃ lattice.