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Design of broadband dispersion flattened fiber for DWDM system: Performance analysis using various modulation formats

机译：DWDM系统的宽带色散扁平光纤设计：使用各种调制格式的性能分析

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摘要

In this paper, unique design of an optimal broadband optical dispersion flattened fiber (DFF) is proposed, which is capable of supporting the data rate of the order of Tb/s. The analysis of the single mode fiber for the design of the proposed DFF has been carried out by employing the quadratic Finite Element Method (FEM) with generalized refractive index (R. I.) profile. The minimization of the dispersion with respect to various profile parameters within the specified wavelength band is the essential optimization criteria. Computations show that a DFF can be designed where the overall dispersion can be restricted within +/- 1 ps/km-nm over the entire spectral span ranging from 1290 to 1540 nm (250 nm) exhibiting a very small maximum value of dispersion slope (+/- 0.02 ps/(nm(2)-km)) in particular. The detailed performance analysis of the proposed DFF with different modulation techniques has been carried out in order to critically evaluate the performance of the DFF with respect to various significant parameters. The results suggest an excellent design of broadband optical waveguide capable of supporting high-speed data rate (40 Tb/s) through the single DFF, ideally suitable for the long haul dense wavelength division multiplexing (DWDM) optical transmission systems.
机译：本文提出了一种最佳的宽带光学色散平坦光纤（DFF）的独特设计，该设计能够支持Tb / s量级的数据速率。通过采用具有广义折射率（R.I.）轮廓的二次有限元方法（FEM）对用于设计DFF的单模光纤进行了分析。在指定波长带内，相对于各种轮廓参数的色散最小化是最重要的优化标准。计算表明，可以设计DFF，在1290至1540 nm（250 nm）的整个光谱范围内，可以将总色散限制在+/- 1 ps / km-nm以内，表现出很小的色散斜率最大值（ +/- 0.02 ps /（nm（2）-km））。为了对各种重要参数严格评估DFF的性能，已经对采用不同调制技术的DFF进行了详细的性能分析。结果表明，宽带光波导的出色设计能够通过单个DFF支持高速数据速率（40 Tb / s），非常适合长距离密集波分复用（DWDM）光传输系统。

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