Theoretical Analysis on Inter-Core Crosstalk Suppression Model for Multi-Core Fiber  

作　　者：Jiajing Tu Xueqin Xie Keping Long 

机构地区：[1]School of Computer and Communication Engineering, University of Science and Technology Beijing (USTB)

出　　处：《China Communications》2016年第8期192-197,共6页中国通信（英文版）

基　　金：supported by National B a-sic Research Program of China(Grant No.2012CB315905);National Natural Science Foundation of China(Grant No.61501027);China Postdoctoral Science Foundation(Grant No.2015M570934);Fundamental Research Funds for the Central Universities(Grant No.FRF-TP-15-031A1)

摘　　要：Decreasing mode coupling coefficient(κ) is an effective approach to suppress the inter-core crosstalk. Therefore, we deploy a low index rod and rectangle trench in the middle of two neighboring cores to reduce κ so that the overlap of electric field distribution can be suppressed. We also propose approximate analytical solution(AAS) for κ of two crosstalk suppression models, which are two cores with one low index rod deployed in the middle and two cores with one low index rectangle trench deployed in the middle. We then do some modification for the results obtained by AAS and the modified results are proved to agree well with that obtained by finite element method(FEM). Therefore, we can use the modified AAS to get inter-core crosstalk for abovementioned two models quickly.Decreasing mode coupling coefficient （k） is an effective approach to suppress the inter-core crosstalk. Therefore, we deploy a low index rod and rectangle trench in the middle of two neighboring cores to reduce n so that the overlap of electric field distribution can be suppressed. We also propose approximate analytical solution （AAS） for K of two crosstalk suppression models, which are two cores with one low index rod de- ployed in the middle and two cores with one low index rectangle trench deployed in the middle. We then do some modification for the results obtained by AAS and the modified results are proved to agree well with that obtained by finite element method （FEM）. Therefore, we can use the modified AAS to get inter-core crosstalk for above- mentioned two models quickly.

关 键 词：multi-core fiber CROSSTALK mode coupling coefficient 

分 类 号：TN253[电子电信—物理电子学]