多芯激励下实际多芯光纤芯间串扰特性研究

向练; 潘洪峰; 金树林; 邵卫东

doi:10.11959/j.issn.1000-436x.2022211

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多芯激励下实际多芯光纤芯间串扰特性研究

学术通信 | 更新时间：2024-06-05

- 多芯激励下实际多芯光纤芯间串扰特性研究
- Research on inter-core crosstalk characteristics of real multi-core fibers with multi-core excitation
- 通信学报 2022年43卷第11期页码：233-241
- 作者机构：
  
  1. 苏州大学光通信网络技术重点实验室，江苏苏州 215006
  2. 苏州大学电子信息学院，江苏苏州 215006
- 作者简介：
  
  [ "向练（1984− ），男，湖南怀化人，博士，苏州大学副教授、硕士生导师，主要研究方向为长距离光纤信号传输、多芯光纤传输机理、光信号恢复等" ]
  [ "潘洪峰（1996− ），男，江苏连云港人，苏州大学硕士生，主要研究方向为多芯光纤传输、多芯光纤串扰等" ]
  [ "金树林（1996− ），男，江苏盐城人，苏州大学硕士生，主要研究方向为多芯光纤串扰、非线性光学等" ]
  [ "邵卫东（1971− ），男，江苏泰州人，博士，苏州大学副教授，主要研究方向为光无源器件、绿色光网等" ]
- 基金信息：
  
  国家自然科学基金资助项目(61801322);江苏省高校自然科学研究面上基金资助项目(15KJB510028)
- DOI：10.11959/j.issn.1000-436x.2022211
  中图分类号： TN913
- 网络出版日期：2022-11，
  
  纸质出版日期：2022-11-25
- 稿件说明：
移动端阅览
向练, 潘洪峰, 金树林, 等. 多芯激励下实际多芯光纤芯间串扰特性研究[J]. 通信学报, 2022,43(11):233-241.

Lian XIANG, Hongfeng PAN, Shulin JIN, et al. Research on inter-core crosstalk characteristics of real multi-core fibers with multi-core excitation[J]. Journal on communications, 2022, 43(11): 233-241.
向练, 潘洪峰, 金树林, 等. 多芯激励下实际多芯光纤芯间串扰特性研究[J]. 通信学报, 2022,43(11):233-241. DOI： 10.11959/j.issn.1000-436x.2022211.

Lian XIANG, Hongfeng PAN, Shulin JIN, et al. Research on inter-core crosstalk characteristics of real multi-core fibers with multi-core excitation[J]. Journal on communications, 2022, 43(11): 233-241. DOI： 10.11959/j.issn.1000-436x.2022211.

摘要

基于耦合功率理论研究了多芯激励下实际多芯光纤的功率和串扰分布特性。根据简化后的七芯光纤功率耦合方程，推导了3种多芯激励情况下各纤芯的光信号功率和芯间串扰的解析表达式。仿真结果表明，经过长距离传输，各纤芯中的光功率会收敛到一个定值，达到动态平衡状态，并且其收敛距离随着弯曲半径的增大呈指数级减小，逐渐趋于一个定值。此外，为研究多芯激励和单芯激励的关系，推导了多个纤芯同时激励和分别激励下耦合纤芯的功率和串扰的解析表达式。研究表明，多个纤芯激励对耦合纤芯串扰的贡献是不相关的，多芯激励的串扰等同于单芯分别激励下串扰的线性叠加。

Abstract

Based on the coupled power theory

the characteristics of optical power and inter-core crosstalk (ICXT) were studied in real multi-core fibers (MCF) with multi-core excitation.According to the simplified coupled power equation of 7-core fiber

the analytical expressions of optical signal power and ICXT in each fiber core were deduced under three multi-core excitation conditions.Simulation results show that

after long-distance transmission

the optical power of each core would converge to a fixed value and reach a dynamic equilibrium state

and its convergence distance decreased exponentially with the increase of bending radius and gradually tended to a fixed value.In addition

in order to study the relationship between multi-core excitation and single-core excitation

the analytical expressions of the power and ICXT in coupled cores were deduced under simultaneous excitation and separate excitation of multi-core.Research shows that the contribution of multi-core excitations to the ICXT of coupled core is irrelevant

and the ICXT of multi-core excitation is equivalent to the sum of the ICXT obtained by the excitation of the cores separately.

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references

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