实现了IM/DD系统线性化算法的简化和快速融合,用于强带限功率色通道的强带限功率色通道
Optics express
|July 30, 2025
概括
一个新的等级级级的多约束代算法 (EC-MCIA) 通过降低高数据速率系统中的比特错误率 (BER) 来显著改善光学传输. 这种先进的线性化方案克服了色谱分散和频段限制效应,实现更长,更快的光纤通信.
科学领域:
- 光学通信是指光学通信的应用.
- 数字信号处理是数字信号处理.
背景情况:
- 在高数据速率强度调制和直接检测 (IM/DD) 光学系统中,色彩分散限制了传输距离.
- 对于IM/DD系统的现有线性化算法对频段限制效应敏感.
研究的目的:
- 提出和评估一种新的脱系统线性化方案,即等级级级的多约束代算法 (EC-MCIA).
- 为了应对IM/DD光纤通道线性化的挑战,严重的功率衰减和频段限制.
主要方法:
- 使用脱的,通道部分意识的自适应数字过器和多重约束代算法.
- 将EC-MCIA与之前报告的混合MCIA (多约束代算法) 进行比较,其中包含一个嵌入式过器对.
主要成果:
- 模拟显示,对于100Gb/s@100公里的脉冲振幅调制 (PAM4) 传输,比特错误率 (BER) 减少了两倍.
- 在25公里的标准单模式光纤 (SSMF) 上,实验展示了C频段224 Gbit/s的PAM4传输.
- EC-MCIA实现了低于20%前期错误校正 (FEC) 极限的BER,几乎超过了混合MCIA的数量级别.
结论:
- 与混合MCIA相比,EC-MCIA提供了更好的线性化性能和更低的复杂性.
- 拟议的方案有效地减轻光纤通道中的色谱分散和频段限制.
- 在IM/DD系统中,EC-MCIA可实现更高的数据速率和更长的传输距离.
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