期刊
OPTICS LETTERS
卷 47, 期 23, 页码 6161-6164出版社
Optica Publishing Group
DOI: 10.1364/OL.478381
关键词
-
类别
资金
- National Natural Science Foundation of China [61935002]
In this study, the hybrid photonic bandgap effect in twisted hollow-core photonic bandgap fibers (HC-PBFs) is investigated for the first time. The twisting of the fibers changes the effective refractive index and eliminates the degeneracy of the photonic bandgap ranges. This twist-induced effect shifts the center wavelength and narrows the bandwidth of the transmission spectrum. The twisted HC-PBFs exhibit quasi-single-mode low-loss transmission and are suitable for applications such as spectral and mode filters.
A hybrid photonic bandgap effect in twisted hollow-core photonic bandgap fibers (HC-PBFs) is theoretically investigated for the first time, to the best of our knowledge. Due to the topological effect, twisting of the fibers changes the effective refractive index and lifts the degeneracy of the photonic bandgap ranges of the cladding layers. This twist-induced hybrid photonic bandgap effect shifts up the center wavelength and narrows the bandwidth of the transmission spectrum. A quasi-single-mode low-loss transmission is achieved in the twisted 7-cell HC-PBFs with a twisting rate alpha = 7-8 rad/mm, which has a loss < 30 dB/km and higher-order mode extinction ratio > 15 dB. The twisted HC-PBFs could be suitable for applications such as spectral and mode filters. (c) 2022 Optica Publishing Group
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据