Dispersion Behavior of Fundamental Supermodes in Homogeneous Strongly Coupled Multicore Optical Fibers for Different Core Counts and Layouts

In this paper, dispersion behavior of fundamental supermode in homogeneous strongly-coupled multicore fibers (SC-MCFs) have been investigated using the finite element method based simulation platform and MATLAB. Further, to observe the impacts of core count and core layout on the dispersion behavior of fundamental supermode, the core count and layout dependent dispersion behavior have been investigated. The different core layouts considered are namely, linear, triangular, square, rectangular, square lattice structure (SLS), circular and hexagonal one ring structure (ORS) and circular dual ring structure (DRS), while the different core counts are 3-Core, 4-Core, 6-Core, and 12-Core. It has been observed that the core layouts of homogeneous SC-MCFs with the closely packed structures for the different core counts have the lowest value of $\left\vert D(\lambda)\right\vert_{\max}$ (magnitude of maximum dispersion), as compared to the other layouts. Moreover, it has been observed that in some of the core layouts, such as 4-Core square, 6-Core circular, and 12-Core circular DRS, the dispersion behaviors are nearly flat over a certain wavelength range, which is desirable for the high speed DWDM applications. Therefore, the analysis presented in this paper may be useful for the selection of core layouts in homogeneous SC-MCF with significantly low dispersion level or the flattened dispersion behavior.

[1]  Wei Wang,et al.  Trench-Assisted Multicore Fiber with Single Supermode Transmission and Nearly Zero Flattened Dispersion , 2018, Applied Sciences.

[2]  Masanori Koshiba,et al.  Design aspects of multicore optical fibers for high-capacity long-haul transmission , 2014, Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP) 2014 International Topical Meeting on.

[3]  Rodrigo Amezcua-Correa,et al.  Systematic approach for designing zero-DGD coupled multi-core optical fibers. , 2016, Optics letters.

[4]  Junhe Zhou,et al.  Analytical formulation of super-modes inside multi-core fibers with circularly distributed cores. , 2014, Optics express.

[5]  Kin Seng Chiang,et al.  Closely packed multicore fibers with zero differential group delay , 2013, 2013 18th OptoElectronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS).

[6]  B. M. Rodr'iguez-Lara,et al.  Symmetric supermodes in cyclic multicore fibers , 2018, OSA Continuum.

[7]  Kunimasa Saitoh,et al.  Multicore Fiber Technology , 2015, Journal of Lightwave Technology.

[8]  Tetsuya Hayashi,et al.  Multi-core optical fibers realizing high-density/-capacity transmissions , 2016, 2016 IEEE CPMT Symposium Japan (ICSJ).

[9]  Zhongwei Tan,et al.  Analytical Formulation of Supermodes in Multicore Fibers With Hexagonally Distributed Cores , 2015, IEEE Photonics Journal.

[10]  Libo Yuan,et al.  Supermodes Analysis for Linearly Distributed Multicore Fiber , 2009, 2009 Symposium on Photonics and Optoelectronics.

[11]  Kin Seng Chiang,et al.  Compact three-core fibers with ultra-low differential group delays for broadband mode-division multiplexing. , 2015, Optics express.

[12]  Kunimasa Saitoh,et al.  Coiling Size Dependence of Group Delay Spread in Coupled Multicore Fibers Without Intentional Twisting , 2017, Journal of Lightwave Technology.

[13]  Xiang Zhou,et al.  Supermodes for optical transmission. , 2011, Optics express.