Trench-assisted 12-core 5-LP mode fiber with a low refractive index circle and a high refractive index ring

被引：5

作者：

Wang, Chun ^{[1
]}

Li, Shuguang ^{[1
]}

Li, Xuxing ^{[2
]}

Li, Zenghui ^{[1
]}

Shao, Pengshuai ^{[1
]}

Guo, Ying ^{[1
]}

Ma, Liling ^{[1
]}

机构：

[1] Yanshan Univ, Sch Sci, State Key Lab Metastable Mat Sci & Technol, Key Lab Microstruct Mat Phys Hebei Prov, Qinhuangdao 066004, Peoples R China

[2] Zhuhai U Oxygen Hlth Ind Ltd Co, Zhuhai 519080, Peoples R China

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 05期

基金：

中国国家自然科学基金;

关键词：

CORE; DESIGN; CROSSTALK;

D O I：

10.1364/OE.480185

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a homogeneous five-mode twelve-core fiber with a trench-assisted structure, combining a low refractive index circle and a high refractive index ring (LCHR). The 12-core fiber utilizes the triangular lattice arrangement. The properties of the proposed fiber are simulated by the finite element method. The numerical result shows that the worst inter-core crosstalk (ICXT) can achieve at -40.14 dB/100 km, which is lower than the target value (-30 dB/100 km). Since adding the LCHR structure, the effective refractive index difference between LP21 and LP02 mode is 2.8 x 10(-3), which illustrates that the LP21 and LP02 modes can be separated. In contrast to without the LCHR, the dispersion of LP01 mode has an apparent dropping, which is 0.16 ps/(nm center dot km) at 1550 nm. Moreover, the relative core multiplicity factor can reach 62.17, which indicates a large core density. The proposed fiber can be applied to the space division multiplexing system to enhance the fiber transmission channels and capacity.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：7290 / 7302

页数：13