Electro-optically modulated polarization mode conversion in lithium niobate ridge waveguides
Files
Date
2021-03-04, 2021
DOI
Authors
Yang, Guang
Sergienko, Alexander V.
Ndao, Abdoulaye
Version
Other
OA Version
Citation
G. Yang, A.V. Sergienko, A. Ndao. 2021. "Electro-optically modulated polarization mode conversion in lithium niobate ridge waveguides." https://arxiv.org/abs/2103.03365.
Abstract
Lithium niobate on insulator (LNOI) waveguides, as an emerging technology, have proven to offer a promising platform for integrated optics, due to their strong optical confinement comparable to silicon on insulator (SOI) waveguides, while possessing the versatile properties of lithium niobate, such as high electro-optic coefficients. In this paper, we show that mode hybridization, a phenomenon widely found in vertically asymmetric waveguides, can be efficiently modulated in an LNOI ridge waveguide by electro-optic effect, leading to a polarization mode converter with 97% efficiency. Moreover, the proposed device does not require tapering or periodic poling, thereby greatly simplifying the fabrication process. It can also be actively switched by external fields. Such a platform facilitates technological progress of photonic circuits and sensors.
Description
License
This work is distributed under a Creative Commons Attribution 4.0 license.