Growth and investigation of LiNbO3:MgO single crystals

Dmitry Yu. Sugak; Andrej O. Matkovskii; Ivan M. Solskii; I. V. Stefanskii; Vladimir M. Gaba; Anatolij I. Mikhalevych; Vitaly V. Grabovski; Valentin I. Prokhorenko; B. N. Kopko; V. Ya. Oliinyk

doi:10.1117/12.239216

29 April 1996 Growth and investigation of LiNbO₃:MgO single crystals

Dmitry Yu. Sugak, Andrej O. Matkovskii, Ivan M. Solskii, I. V. Stefanskii, Vladimir M. Gaba, Anatolij I. Mikhalevych, Vitaly V. Grabovski, Valentin I. Prokhorenko, B. N. Kopko, V. Ya. Oliinyk

Author Affiliations +

Proceedings Volume 2795, Nonlinear Optics of Liquid and Photorefractive Crystals; (1996) https://doi.org/10.1117/12.239216
Event: Nonlinear Optics of Liquid and Photorefractive Crystals, 1995, Ai-Danil, Crimea, Ukraine

Abstract

The technological procedure of the manufacturing of the LiNbO₃ single crystals doped with 5 mol.% MgO is described in this paper. The results of the investigation of the crystal optical properties and optical homogeneity are presented. The refractive index dispersion in the 300 - 700 nm region and their temperature dependences in the 20 - 500 degree Celsius range are measured. The dispersion curve is approximated by the two oscillator Sellmeier formula. The data on the LiNbO₃:MgO crystal optical resistance are presented. The phenomenon of optical damage in LiNbO₃ (LN) restricts considerably the application of the crystals in devices that control powerful laser beam. Crystal doping by MgO suppresses photorefractive characteristics of LN and leads to considerable increase of the threshold of crystal optical damage. Hence it is of vital importance to receive optically homogeneous LiNbO₃:MgO (LN - Mg) crystals of big size and to study their optical characteristics. The concentration dependence of MgO influence on optical characteristics is threshold like and the threshold concentration of MgO ranges within 5 - 7% mol according to the ratio of Li/Nb in the crystal.

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Dmitry Yu. Sugak, Andrej O. Matkovskii, Ivan M. Solskii, I. V. Stefanskii, Vladimir M. Gaba, Anatolij I. Mikhalevych, Vitaly V. Grabovski, Valentin I. Prokhorenko, B. N. Kopko, and V. Ya. Oliinyk "Growth and investigation of LiNbO₃:MgO single crystals", Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); https://doi.org/10.1117/12.239216

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