Abstract

A novel universal semi-analytical model (USAM) of intercore crosstalk (ICXT) for real weakly coupled multicore fibers (MCFs) is derived based on the coupled mode theory (CMT) with bending and twisting perturbations. An approximated closed-form expression of longitudinal sectional approach is introduced to solve the modified coupled-mode equations (CME) with the random phase shift. Numerical simulations are carried out based on various parametric configurations for the MCF transmission system considered. Our studies indicate that the USAM can be used in the phase-matching region and non-phase-matching region for homogeneous and heterogeneous MCFs. In addition, in the range of tested segment length from 0.0025 m to 0.0380 m, the proposed model can provide a quite accurate and fast simulation results for real weakly coupled MCFs. Therefore, compared with other models based on the CMT, the USAM is more useful for crosstalk estimation in practical MCF and has a wider scope of application.

Inter-core crosstalk in weakly coupled MCFs with arbitrary core layout and the effect of bending and twisting on the coupling coefficient

Ricardo O. J. Soeiro, Tiago M. F. Alves, and Adolfo V. T. Cartaxo
Opt. Express 27(1) 74-91 (2019)

Characterization of the stochastic time evolution of short-term average intercore crosstalk in multicore fibers with multiple interfering cores

Tiago M. F. Alves and Adolfo V. T. Cartaxo
Opt. Express 26(4) 4605-4620 (2018)

Investigation of channel model for weakly coupled multicore fiber

Lin Gan, Li Shen, Ming Tang, Chen Xing, Yanpeng Li, Changjian Ke, Weijun Tong, Borui Li, Songnian Fu, and Deming Liu
Opt. Express 26(5) 5182-5199 (2018)

Performance of adaptive DD-OFDM multicore fiber links and its relation with intercore crosstalk

Tiago M. F. Alves, Ruben S. Luís, Benjamin J. Puttnam, Adolfo V. T. Cartaxo, Yoshinari Awaji, and Naoya Wada
Opt. Express 25(14) 16017-16027 (2017)

Role of polarization-mode coupling in the crosstalk between cores of weakly-coupled multi-core fibers

Cristian Antonelli, Gabriele Riccardi, Tetsuya Hayashi, and Antonio Mecozzi
Opt. Express 28(9) 12847-12861 (2020)