少模多芯光纤的纤芯排布方法

发布时间：2018-01-03 11:19

本文关键词：少模多芯光纤的纤芯排布方法　出处：《光子学报》2017年01期 　论文类型：期刊论文

【摘要】：提出一种3模12芯光纤的纤芯排布优化方法.在分析芯间串扰、弯曲半径阈值和相对纤芯多重性因子等特性后,给出了单圆形结构和方点阵结构的纤芯排布方法及优化方案.对于单圆形结构,在波长为1 625nm的情况下很难找到合适纤芯排布以使芯间串扰小于-30dB/100km并且使光缆截至波长小于1 530nm.对于方点阵结构,在波长为1 625nm,且弯曲半径大于弯曲半径阈值时,可使芯间串扰小于-30dB/100km,最大光缆截至波长不大于1 530nm,纤芯多重性因子可达到~15,这表明方点阵结构是一种比单圆形结构更适合3模12芯光纤的纤芯排布结构.
[Abstract]:In this paper, a method of optimizing the core placement of 3-mode 12-core fiber is proposed. After analyzing the characteristics of crosstalk between cores, threshold of bending radius and multiplex factor of relative core, etc. The core arrangement method and optimization scheme of single circular structure and square lattice structure are given. At a wavelength of 1,625nm, it is difficult to find the appropriate core arrangement to make the cross-core crosstalk less than -30dB / 100km and to make the cable less than 1 at the end of the wavelength. 530nm. for square lattice structure. When the wavelength is 1 625 nm and the bending radius is larger than the threshold of bending radius, the crosstalk between cores is less than -30 dB / 100 km, and the maximum optical cable is less than 1 530 nm. The multiplex factor of fiber core can reach to 15, which indicates that the square lattice structure is more suitable for 3 mode 12 core fiber than the single circular structure.
【作者单位】：北京科技大学计算机与通信工程学院先进网络技术与新业务研究所;
【基金】：国家重点基础研究发展计划(No.2012CB315905) 国家自然科学基金(No.61501027) 中国博士后科学基金(No.2015M570934) 中央高校基本科研业务费专项资金项目(No.FRF-TP-15-031A1)资助~~
【分类号】：TN253
【正文快照】： 0引言在光纤传输系统中,空分复用技术(Space Division Multiplexing,SDM)是突破传输容量理论极限的一个很好的解决方案[1].作为SDM的实现手段,多芯光纤(Multi-Core Fiber,MCF)和少模光纤(Few-Mode Fiber,FMF)可以通过增加空间信道数量来增加传输容量数量级,因此成为了下一

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