Lithium Niobate Fabry-Perot microcavity based on strip loaded waveguides

Authors

Maria V. Kotlyar, Centre for Advanced Photonics and Process Analysis, Munster Technological University, Cork, Ireland; Tyndall National Institute, Cork, IrelandFollow
Simone Iadanza, Centre for Advanced Photonics and Process Analysis, Munster Technological University, Cork, Ireland; Tyndall National Institute, Cork, IrelandFollow
Liam O'Faolain, Centre for Advanced Photonics and Process Analysis, Munster Technological Universit, Cork, Ireland; Tyndall National Institute, Cork, IrelandFollow

Document Type

Article

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Disciplines

Physics

Publication Details

Published in Photonics and Nanostructures - Fundamentals and Applications, Vol 43, February 2021.

Abstract

In this work, we combine Lithium Niobate on insulator with a silicon nitride layer to form strip-loaded waveguides that can take advantage of the strong nonlinear optical coefficients of lithium niobate and of the high refractive contrast and ease of processing of silicon nitride. We describe the design and fabrication of a Fabry-Perot cavity formed by Distributed Bragg Reflectors. We discuss the design trade-offs implicit in the realisation of such microcavities of this nature and demonstrate an experimental quality factor of 2300, which is to our knowledge, the highest experimentally reported result for such type of waveguide based Fabry-Perot cavity.

Recommended Citation

Kotlyar, M.V., Iadanza, S. and O’Faolain, L. (2021). Lithium Niobate Fabry-Perot microcavity based on strip loaded waveguides. Photonics and Nanostructures - Fundamentals and Applications, [online] 43, p.100886. doi:https://doi.org/10.1016/j.photonics.2020.100886. ‌