Multi-mode Perturbation Modelling for Cavity Polygon and Star Modes
Optics
2023-05-10 v1
Abstract
Polygon and star modes enable unidirectional emission and single-frequency lasing in whispering gallery microcavities. To understand their properties and facilitate design, we have adopted both two-dimensional and three-dimensional full-wave perturbation methods to simulate these modes. Our simulation demonstrates that a tapered optical fiber can be used as a weak perturbation to coherently combine multiple whispering gallery modes into a polygon or star mode. Additionally, our simulation predicts an optical quality factor as high as for the polygon modes, which is in good agreement with the experiment results.
Cite
@article{arxiv.2305.05300,
title = {Multi-mode Perturbation Modelling for Cavity Polygon and Star Modes},
author = {Saeed Farajollahi and Zhiwei Fang and Jintian Lin and Shahin Honari and Ya Cheng and Tao Lu},
journal= {arXiv preprint arXiv:2305.05300},
year = {2023}
}