Crystallographic and Optical Properties of Z-Cut High Index Soft Proton Exchange (HISoPE) LiNbO 3 Waveguides

Oleksandr Stepanenko (1) , Emmanuel Quillier (1) , Herve Tronche (1) , Pascal Baldi (2) , Marc De Micheli

1 LPMC - Laboratoire de physique de la matière condensée
2 INPHYNI - Institut de Physique de Nice

Highly confining nonlinear optical waveguides are extremely interesting for highly efficient and ultracompact nonlinear and/or electro-optical devices. In this paper, we concentrate on correlations between structural and optical properties of channel waveguides on z-cut lithium niobate fabricated using a new waveguide fabrication method, we call HISoPE for high index soft proton exchange, which allows obtaining a guiding layer presenting an index increase as high as 0.1 and a nonlinear coefficient equal to its value in the bulk.

Mots clés: Lithium niobate (LN), nonlinear optics, proton exchange, waveguides.

Domaines: Optique [physics.optics]

Oleksandr Stepanenko, Emmanuel Quillier, Herve Tronche, Pascal Baldi, Marc De Micheli. Crystallographic and Optical Properties of Z-Cut High Index Soft Proton Exchange (HISoPE) LiNbO 3 Waveguides. Journal of Lightwave Technology, 2016, 34 (9), pp.2206-2212. ⟨10.1109/JLT.2016.2524583⟩. ⟨hal-03545937⟩