A Power-Scalable 7-Tap FIR Equalizer with Tunable Active Delay Line for 10-to-25Gb/s Multi-Mode Fiber EDC in 28nm LP-CMOS

📋 论文概要

本文提出了一种功率可伸缩的7抽头FIR均衡器，采用可调有源延迟线，用于10-25Gb/s多模光纤的电子色散补偿。该设计在28nm LP-CMOS工艺中实现，解决了多模光纤中因模式色散导致信道响应变化大、均衡困难的问题。

💡 主要创新点

• 提出可调有源延迟线结构，支持均衡器抽头延时动态调整，适应不同光纤信道。
• 实现功率可伸缩的7抽头FIR均衡器，在10-25Gb/s数据速率下可动态调节功耗。
• 采用28nm LP-CMOS工艺，实现高速率多模光纤EDC的紧凑低功耗设计。

🏷 关键词

📄 原文摘要

cost-effective fiber for high-speed LANs. Modal dispersion leads to optical-energy spreading over several symbol periods, drastically limiting distance and data-rate. Compared with copper channels, equalization is challenging because the channel response varies enormously from fiber to fiber and also over time [1]. These aspects, paired with the practical difficulty of implementing TX pulse shaping, increase the equalization burden at the receiver. To date, electronic dispersion compensation (EDC) consisting of an FIR filter cascaded with a nonlinear equalizer, such as DFE, enables 10Gb/s up to 300m according to the 10GBASE-LRM standard. To satisfy the demand for greater network capacity, solutions to reach 25Gb/s on a single fiber, and up to

👥 作者与机构

Enrico Mammei1, Fabrizio Loi1, Francesco Radice2, Angelo Dati2,

Melchiorre Bruccoleri2, Matteo Bassi1, Andrea Mazzanti1 University of Pavia, Pavia, Italy, STMicroelectronics, Cornaredo, Italy 1 2 Multi-mode fiber (MMF) is the most