In this paper, new symmetrical and post dispersion compensation schemes are proposed and investigated. Each scheme has many cases. Each case has a certain connection for the proposed model used in narrowing the linewidth, Δλ, of the optical signal. The new schemes in WDM systems are implemented and simulated with Optisystem 15 up to 200 km. The new proposed schemes are evaluated through the Q-factor and BER, showing a performance enhancement by 21% in the symmetrical and 19% in the post compensation as compared to the previous work.

中文翻译：

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WDM光通信系统中的对称和后色散补偿

在本文中，提出并研究了新的对称和后色散补偿方案。每个方案都有很多案例。对于用于缩小光信号线宽 Δλ 的建议模型，每种情况都有一定的联系。WDM 系统中的新方案使用 Optisystem 15 实现和模拟，最长可达 200 公里。新提出的方案通过 Q 因子和 BER 进行评估，与之前的工作相比，对称性能提高了 21%，后补偿性能提高了 19%。