Abstract

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.

© 2016 IEEE

Characterization of α-phase soft proton-exchanged LiNbO₃ optical waveguides

Yu. N. Korkishko, V. A. Fedorov, E. A. Baranov, M. V. Proyaeva, T. V. Morozova, F. Caccavale, F. Segato, C. Sada, and S. M. Kostritskii
J. Opt. Soc. Am. A 18(5) 1186-1191 (2001)

Correlation between photorefractive index changes and optical damage thresholds in z-cut proton-exchanged-LiNbO₃ waveguides

F. Luedtke, J. Villarroel, A. García-Cabañes, K. Buse, and M. Carrascosa
Opt. Express 17(2) 658-665 (2009)

Relationships between structural and optical properties of proton-exchanged waveguides on Z-cut lithium niobate

Yu. N. Korkishko, V. A. Fedorov, M. P. De Micheli, P. Baldi, K. El Hadi, and A. Leycuras
Appl. Opt. 35(36) 7056-7060 (1996)

Lithium niobate waveguides with high-index contrast and preserved nonlinearity fabricated by a high vacuum vapor-phase proton exchange

Alicia Petronela Rambu, Alin Marian Apetrei, Florent Doutre, Hervé Tronche, Vasile Tiron, Marc de Micheli, and Sorin Tascu
Photon. Res. 8(1) 8-16 (2020)

Spectral measurement of the film–substrate index difference in proton-exchanged LiNbO₃ waveguides

Kacem El Hadi, Vipul Rastogi, Mangalpady R. Shenoy, Krishna Thyagarajan, Marc De Micheli, and Daniel B. Ostrowsky
Appl. Opt. 37(27) 6463-6467 (1998)