Multi-mode Perturbation Modelling for Cavity Polygon and Star Modes

Autor: Farajollahi, Saeed, Fang, Zhiwei, Lin, Jintian, Honari, Shahin, Cheng, Ya, Lu, Tao
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: 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 $10^7$ for the polygon modes, which is in good agreement with the experiment results.
Databáze: arXiv