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Quadratic nonlinear optical parameters of 7% MgO-doped LiNbO3 crystal

Abstract : Pure and 7% MgO-doped lithium niobate (LiNbO3) single crystals were grown by the Czochralski technique. The shift of optical absorption edge in 7% MgO-doped crystal in direction of shorter wavelength compared to undoped crystal was observed. The second harmonic generation measurements of 7% MgO-doped LiNbO3 crystal were performed at room temperature by means of the rotational Maker fringe technique using Nd:YAG laser generating at 1064 nm in picoseconds regime. Experimentally obtained value of nonlinear optical coefficient d33 for 7% MgO-doped LiNbO3 was found to be less than for undoped crystal but higher than for 5% MgO-doped. I-type phase-matched second harmonic generation was achieved and the value of phase-matched angle was calculated. High quadratic nonlinearity together with tolerance to intensive laser irradiation makes 7% MgO-doped LiNbO3 crystal interesting for application in optoelectronics.
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Article dans une revue
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Contributeur : Okina Université d'Angers <>
Soumis le : mardi 5 mai 2020 - 20:30:01
Dernière modification le : mardi 25 août 2020 - 11:58:02



Bohdan Kulyk, V. Kapustianyk, V. Figà, Bouchta Sahraoui. Quadratic nonlinear optical parameters of 7% MgO-doped LiNbO3 crystal. Optical Materials, Elsevier, 2016, 56, pp.36-39. ⟨10.1016/j.optmat.2015.12.002⟩. ⟨hal-02564438⟩



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