Electro-optic coefficients r13 and r33 of singly Er3+-doped and In3+/Er3+-codoped LiNbO3 crystals

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Wan-Ying Du
  • Pei Zhang
  • Zi-Bo Zhang
  • Shuai Ren
  • Wing-Han Wong
  • Dao-Yin Yu
  • De-Long Zhang

Detail(s)

Original languageEnglish
Pages (from-to)101-106
Journal / PublicationJournal of Physics and Chemistry of Solids
Volume100
Publication statusPublished - 1 Jan 2017

Abstract

A series of singly Er3+-doped and doubly In3+/Er3+-doped congruent LiNbO3 crystals were grown by Czochralski method. The Er3+-only doped crystals were grown from the growth melts doped with different concentrations of Er2O3 up to 1 mol%, and the In3+/Er3+-codoped crystals from the melts doped with fixed 0.5 mol% Er2O3 while varied In2O3 contents of 0.0, 0.5, 1.0 and 1.5 mol%. The electro-optic coefficients γ13 and γ33 of these doped crystals were measured by Mach-Zehnder interferometry. Both clamped and unclamped coefficients were measured. The results show that both γ13 and γ33 reveal small Er3+ and In3+ doping effects. In the Er3+-only doping case, γ13 almost does not change within the experimental error of 3%, γ33 reveals a degradation tendency with a rise in Er3+ doping level, but the degradation is no more than 5% in the considered Er3+ concentration range 0–3.0 mol% (in crystal). In the In3+/Er3+-codoping case, both γ13 and γ33 can be regarded as unchanged in the studied In3+ concentration range of 0–2.6 mol% (in crystal) within the error. The small Er3+ or In3+ doping effect is desired in light of electro-optic application of these crystals. It is qualitatively explained on the basis of EO coefficient model and doping effect on defect structure of LiNbO3.

Research Area(s)

  • Electro-optic property, Er3+-doping, In3+/Er3+-codoping, Lithium niobate

Citation Format(s)

Electro-optic coefficients r13 and r33 of singly Er3+-doped and In3+/Er3+-codoped LiNbO3 crystals. / Du, Wan-Ying; Zhang, Pei; Zhang, Zi-Bo et al.

In: Journal of Physics and Chemistry of Solids, Vol. 100, 01.01.2017, p. 101-106.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review