Crystal structure and optical properties of proton-exchanged lithium niobate waveguides

Vyacheslav A. Fedorov; Yuri N. Korkishko

doi:10.1117/12.190913

21 October 1994 Crystal structure and optical properties of proton-exchanged lithium niobate waveguides

Vyacheslav A. Fedorov, Yuri N. Korkishko

Proceedings Volume 2291, Integrated Optics and Microstructures II; (1994) https://doi.org/10.1117/12.190913
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The relationship between deformations of crystal lattice and extraordinary refractive index change has been experimentally determined for proton-exchanged lithium niobate waveguides. It has been shown that the strains induces by the substrate strongly modifies the phase diagram obtained for powders. Depending on exchange and annealing conditions and crystal cuts, at least the six phases x -, 13-, -, 5-, ( and 'Ti - HxL:L1-NbO3 can exist in single crystal layers. The regularities of proton exchange in lithium niobate crystals under different exchange and annealing conditions are studied and various specific features are explained.

Citation Download Citation

Vyacheslav A. Fedorov and Yuri N. Korkishko "Crystal structure and optical properties of proton-exchanged lithium niobate waveguides", Proc. SPIE 2291, Integrated Optics and Microstructures II, (21 October 1994); https://doi.org/10.1117/12.190913

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