在短距离高速光学链路中进行非线性均等化的混合修剪
Optics express
|August 13, 2025
概括
一种新的混合修剪沃尔特拉非线性均等化 (HP-VNLE) 方法减少了光通信系统的复杂性. 这种方法保持了低位错误率 (BER) 的性能,为高数据速率应用提供了节能解决方案.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
- 非线性系统是非线性系统.
背景情况:
- 收发器组件的非线性损伤挑战了高速,低延迟的短距离光学系统.
- 沃尔特拉非线性均等化 (VNLE) 可以缓解这些问题,但具有很高的计算复杂性,限制了其在节能数据中心的使用.
研究的目的:
- 提出一种混合修剪的VNLE (HP-VNLE),可以降低计算复杂性,同时保持低位错误率 (BER) 性能.
- 调查结构化和非结构化内核缩减对于VNLE复杂性缓解的有效性.
主要方法:
- 开发了一种混合修剪的VNLE (HP-VNLE),使用结构化 (中心扩散的VNLE) 和非结构化的内核缩小.
- 分析了第三阶级未修剪的VNLE中的抽水意义,以证明修剪策略的合理性.
- 将第三级HP-VNLE与线性等效器和一键决策反等效器 (DFE) 结合起来.
主要成果:
- 与未修剪的VNLE相比,HP-VNLE显著降低了计算复杂性.
- 惠普-VNLE的性能高度依赖于从中部扩散 (CS) VNLE的初始切口配置.
- 混合方法 (第三阶HP-VNLE + 线性等效器 + 1 点DFE) 实现了比未修剪的VNLE更好的BER性能.
结论:
- 在光学系统中,HP-VNLE为减轻非线性损伤提供了一个实用的解决方案.
- 拟议的方法提高了系统性能,并减少了对节能,低成本数据中心至关重要的计算负载.
- 这种混合方法为优化未来光通信系统的能源效率,复杂性和数据速率提供了有希望的解决方案.
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