Stochastic Crosstalk Analyses for Real Weakly Coupled Multicore Fibers Using a Universal Semi-Analytical Model
Stochastic Crosstalk Analyses for Real Weakly Coupled Multicore Fibers Using a Universal Semi-Analytical Model
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DOI：
10.1109/jlt.2021.3072053
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发表时间：
2021-07
影响因子：
4.7
通讯作者：
Wenjie Wang;Lian Xiang;Weidong Shao;G. Shen
中科院分区：
文献类型：
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作者：
Wenjie Wang;Lian Xiang;Weidong Shao;G. Shen
基于考虑弯曲和扭转扰动的耦合模理论，推导出了一种新型的真实的弱耦合多芯光纤（MCF）芯间串扰（ICXT）通用半解析模型（USAM）。引入纵向截面法的近似闭合表达式，求解了考虑随机相移的修正耦合模方程。数值模拟进行了各种参数配置的基础上考虑的MCF传输系统。我们的研究表明，USAM可以用于相位匹配区和非相位匹配区的均匀和非均匀的MCF。此外，在0.0025 ~ 0.0380 m的试验段长度范围内，该模型可以为真实的弱耦合MCFs提供相当准确和快速的仿真结果。因此，与基于CMT的其他模型相比，USAM更适合于实际MCF中的串扰估计，具有更广泛的应用范围。
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.