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The nonlinear diffusion bandwidth: A simple tool for optimizing dispersion maps

机译:非线性扩散带宽:用于优化色散图的简单工具

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The concept of a nonlinear transfer function of a fibre-optic communication link is reviewed. Also an approximation of the nonlinear transfer function is introduced, which allows to define an equivalent single-span model of a dispersion-managed multi-span system. In this paper we will show its limits of validity and try to extent these limits by enhancing the theoretical model. In this respect we will discuss the impact of dispersion pre-compensation and show the influence of residual dispersion per span, number of spans and local dispersion on transmission systems with on-off keying and differential phase-shift keying modulation formats. This approach allows fast assessment of the performance of a given modulation format over various dispersion maps by reducing the need for extensive numerical simulations.
机译:回顾了光纤通信链路的非线性传递函数的概念。还介绍了非线性传递函数的近似值,它允许定义色散管理的多跨度系统的等效单跨度模型。在本文中,我们将显示其有效性限制,并尝试通过增强理论模型来扩展这些限制。在这方面,我们将讨论色散预补偿的影响,并显示每跨度,跨度数和局部色散对采用开关键控和差分相移键控调制格式的传输系统的影响。通过减少对大量数值模拟的需求,该方法可以快速评估各种色散图上给定调制格式的性能。

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