A new exceptional point condition for coupled microresonators with coupled mode theory in space

Fuente: arXiv
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Autori principali: Zhu, Kunpeng, Zhou, Xiaoyan, Zhang, Yinxin, Huang, Zhanhua, Zhang, Lin
Natura: Preprint
Pubblicazione: 2024
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author Zhu, Kunpeng
Zhou, Xiaoyan
Zhang, Yinxin
Huang, Zhanhua
Zhang, Lin
author_facet Zhu, Kunpeng
Zhou, Xiaoyan
Zhang, Yinxin
Huang, Zhanhua
Zhang, Lin
contents We derive new exceptional point (EP) conditions of the coupled microring resonators using coupled mode theory in space, a more accurate approach than the commonly used coupled mode theory in time. Transmission spectra around EPs obtained from the two models have been compared on two material platforms, revealing non-negligible deviations. Our analysis provides a guide for accurately determining parameter sets of coupled microrings at EPs and deepens our understanding on parity-time-symmetric coupled resonators at EPs.
format Preprint
id arxiv_https___arxiv_org_abs_2410_17955
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A new exceptional point condition for coupled microresonators with coupled mode theory in space
Zhu, Kunpeng
Zhou, Xiaoyan
Zhang, Yinxin
Huang, Zhanhua
Zhang, Lin
Optics
We derive new exceptional point (EP) conditions of the coupled microring resonators using coupled mode theory in space, a more accurate approach than the commonly used coupled mode theory in time. Transmission spectra around EPs obtained from the two models have been compared on two material platforms, revealing non-negligible deviations. Our analysis provides a guide for accurately determining parameter sets of coupled microrings at EPs and deepens our understanding on parity-time-symmetric coupled resonators at EPs.
title A new exceptional point condition for coupled microresonators with coupled mode theory in space
topic Optics
url https://arxiv.org/abs/2410.17955