Accurate Mode-Coupling Characterization of Low-Crosstalk Ring-Core Fibers using Integral Calculation based Swept-Wavelength Interferometry Measurement

Zhang, Junwei, Zhu, Jiangbo, Liu, Junyi, Mo, Shuqi, Zhang, Jingxing, Lin, Zhenrui, Shen, Lei, Zhang, Lei, Luo, Jie, Liu, Jie and Yu, Siyuan (2021) Accurate Mode-Coupling Characterization of Low-Crosstalk Ring-Core Fibers using Integral Calculation based Swept-Wavelength Interferometry Measurement. Journal of Lightwave Technology. ISSN 0733-8724 (In Press)

[img]
Preview
Text
JLT_Characterization_method_accepted.pdf - Accepted Version

Download (575kB) | Preview
Official URL: https://doi.org/10.1109/jlt.2021.3101674

Abstract

In this paper, to accurately characterize the low inter-mode coupling of the weakly-coupled few mode fibers (FMFs), we propose a modified inter-mode coupling characterization method based on swept-wavelength interferometry measurement, in which an integral calculation approach is used to eliminate significant sources of error that may lead to underestimation of the power coupling coefficient. Using the proposed characterization method, a low-crosstalk ring-core fiber (RCF) with low mode dependent loss (MDL) and with single span length up to 100 km is experimentally measured to have low power coupling coefficients between high-order orbital angular momentum (OAM) mode groups of below -30 dB/km over C band. The measured low coupling coefficients based on the proposed method are verified by the direct system power measurements, proving the feasibility and reliability of the proposed inter-mode coupling characterization method.

Item Type: Article
Additional Information: Research funded by National Natural Science Foundation of China (61875233) Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01X121) NSFC-Guangdong joint program (U2001601) National Key RD Program of China (2018YFB1801800) The Key RD Program of Guangdong Province (2018B030329001)
Uncontrolled Keywords: Ring-core fiber (RCF), power coupling coefficient, swept-wavelength interferometry (SWI), impulse response, integral calculation
Subjects: F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Rachel Branson
Date Deposited: 09 Aug 2021 12:25
Last Modified: 09 Aug 2021 12:30
URI: http://nrl.northumbria.ac.uk/id/eprint/46883

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics