Measurement of differential mode group delay in few-mode fiber with correlation optical time-domain reflectometer

被引：2
|
作者：
Jin, Linqi [1 ]
Wang, Yong [1 ]
Zhang, Meiling [1 ]
Sun, Yadong [1 ]
Hu, Guijun [1 ]
机构：
[1] Jilin Univ, Coll Commun Engn, Changchun 130012, Peoples R China
来源：
APPLIED OPTICS | 2022年 / 61卷 / 13期
基金：
中国国家自然科学基金;
关键词：
DISPERSION MEASUREMENT;
D O I：
10.1364/AO.457156
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A measurement system of differential mode group delay (DMGD) in few-mode fiber with correlation optical time-domain reflection was proposed. A photonic lantern used in the system can be utilized for mode separation and selection and can generate six LP modes: LP01, LP11a, LP11b, LP21a, LP21b, and LP02. The signal reflected by the end of the fiber is correlated with the data sequence sent, which realizes the single-ended measurement of 5 km few-mode fiber DMGD. This method is not destructive for detecting fiber transmission systems and is simple and easy to implement. It can be used for detecting fiber transmission characteristics in the mode-division multiplexing communication system. (C) 2022 Optica Publishing Group
引用
收藏
页码：3579 / 3582
页数：4
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