Defect structure and optical damage resistance of In:Er:LiTaO3 crystals

Ting Sun; Xiaodong Zhang; Liang Sun; Rui Wang

doi:10.1117/12.2028697

9 July 2013 Defect structure and optical damage resistance of In:Er:LiTaO₃ crystals

Ting Sun, Xiaodong Zhang, Liang Sun, Rui Wang

Proceedings Volume 8786, Pacific Rim Laser Damage 2013: Optical Materials for High Power Lasers; 87862B (2013) https://doi.org/10.1117/12.2028697
Event: SPIE/SIOM Pacific Rim Laser Damage: Optical Materials for High-Power Lasers, 2013, Shanghai, China

Abstract

In:Er:LiTaO₃ single crystals with 1.0mol.% Er³⁺ and various In³⁺ ions were grown by the Czochralski method from a congruent melt (C_Li/C_Ta=0.946). Defect structure of the crystals was determined by their infrared absorption spectra. Threshold concentration of In³⁺ ion is 3.0mol.%. The optical damage resistance of In:Er:LiTaO₃ crystals was characterized by the change of light-induced birefringence as well as distortion of transmitted beam pattern. Optical damage resistance of In:Er:LiTaO₃ crystals significantly increases when the concentration of In³⁺ ion exceeds its threshold concentration. The optical damage resistance magnitude of In(3.0mol.%):Er:LiTaO₃ crystal is two orders higher than that of Er:LiTaO₃ crystal. The change of light-induced birefringence decreases with the increasing In³⁺ ion concentration. The optical damage resistance could be well understood in view of defect structure.

Citation Download Citation

Ting Sun, Xiaodong Zhang, Liang Sun, and Rui Wang "Defect structure and optical damage resistance of In:Er:LiTaO₃ crystals", Proc. SPIE 8786, Pacific Rim Laser Damage 2013: Optical Materials for High Power Lasers, 87862B (9 July 2013); https://doi.org/10.1117/12.2028697

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