Silicon-organic hybrid thermo-optic switch based on a slot waveguide directional coupler
Optics
2022-08-03 v1 Applied Physics
Abstract
We propose and demonstrate a passively biased 2 by 2 thermo-optic switch with high power efficiency and fast response time. The device benefits from the highly concentrated optical field of a slot waveguide mode and the strong thermo-optic effect of a nematic liquid crystal (NLC) cladding. The NLC fills the nano-slot region and is aligned by the subwavelength grating inside. The measured power consumption and thermal time constant are 0.58 mW and 11.8 microsecond, respectively, corresponding to a figure-of-merit of 6.8. The proposed silicon-organic hybrid device provides a new solution to design thermo-optic actuators having lower power consumption and fast operation speed.
Keywords
Cite
@article{arxiv.2208.01186,
title = {Silicon-organic hybrid thermo-optic switch based on a slot waveguide directional coupler},
author = {Li-Yuan Chiang and Chun-Ta Wang and Steve Pappert and Paul K. L. Yu},
journal= {arXiv preprint arXiv:2208.01186},
year = {2022}
}