Periodical poling of lithium niobate crystals with Li-enriched surface layer

A. R. Poghosyan; I. A. Ghambaryan; R. Guo; E. S. Vardanyan

doi:10.1117/12.893038

7 September 2011 Periodical poling of lithium niobate crystals with Li-enriched surface layer

A. R. Poghosyan, I. A. Ghambaryan, R. Guo, E. S. Vardanyan

Proceedings Volume 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V; 812017 (2011) https://doi.org/10.1117/12.893038
Event: SPIE Photonic Devices + Applications, 2011, San Diego, California, United States

Abstract

We present two approaches for production of periodically poled lithium niobate crystals by surface modification of congruent crystals: first - by Li enrichment during annealing and second - by deposition a thin layer of stoichiometric lithium niobate film on the +Z face of a crystal. Both methods have allowed to create on the surface of congruent sample a layer with composition close to stoichiometric and to reduce a poling electric field without changing of the composition of crystal volume and thereby to keep all advantages of congruent crystal.

Citation Download Citation

A. R. Poghosyan, I. A. Ghambaryan, R. Guo, and E. S. Vardanyan "Periodical poling of lithium niobate crystals with Li-enriched surface layer", Proc. SPIE 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V, 812017 (7 September 2011); https://doi.org/10.1117/12.893038

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