Design and characteristics of ellipse-assisted ring-core fiber for space division multiplexing

Song Y.; Zheng J.; Pei L.Huang J.Wang J.Ning T.Li J.Bai B.

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Design and characteristics of ellipse-assisted ring-core fiber for space division multiplexing

机译：Design and characteristics of ellipse-assisted ring-core fiber for space division multiplexing

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? 2022 Elsevier Inc.We propose a novel ellipse-assisted ring-core fiber characterized by an elliptical region of low refractive index in the core. The proposed fiber proves effective in eliminating the spatial degeneracy of the LPmn mode groups and keeping the birefringence properties at a low level. This fiber, with optimized structural parameters, can guide 9 modes over the entire C-band. The simulation results show that the effective refractive index difference (Δneff) between adjacent modes at 1530–1565 nm falls within the scope of (3.1 ～ 6.64) × 10?4. At the same time, the polarization separation level of each mode is lower than 3.23 × 10?6, which is 2 orders of magnitude lower than the degree of spatial mode degeneracy separation. This fiber design has good application prospects in space division multiplexing systems.

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《Optical fiber technology》 |2022年第9期|1.1-1.7|共7页
作者
Song Y.; Zheng J.; Pei L.Huang J.Wang J.Ning T.Li J.Bai B.;
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作者单位

Key Laboratory of All Optical Network and Advanced Telecommunication Network of EMC Institute of Lightwave Technology Beijing Jiaotong University;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
Degenerate mode; Effective refractive index difference; Few-mode fiber; Space division multiplexing;

Design and characteristics of ellipse-assisted ring-core fiber for space division multiplexing

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