A 25Gb/s 4.4V-Swing AC-Coupled Si-Photonic Microring Transmitter with 2-Tap Asymmetric FFE and Dynamic Thermal Tuning in 65nm CMOS

📋 论文概要

本文提出一种25Gb/s、4.4V摆幅的交流耦合硅光子微环发射器，集成了2-tap非对称前馈均衡和动态热调谐技术，解决了高数据率下微环调制器的非线性和热稳定性问题，实现了低功耗、高速的WDM光互连。

💡 主要创新点

• 采用交流耦合驱动架构实现25Gb/s、4.4V大摆幅输出，克服传统直流耦合的功耗和速度瓶颈。
• 引入2-tap非对称前馈均衡（FFE）补偿微环调制器的非线性响应，提高眼图质量。
• 集成动态热调谐电路，实时稳定微环谐振波长，提高系统对温度变化的鲁棒性。

🏷 关键词

📄 原文摘要

Ayman Shafik3, Nan Qi1, Yang Liu5, Ran Ding5, Tom Baehr-Jones5, Marco Fiorentino4, Michael Hochberg5, Samuel Palermo3, Patrick Yin Chiang1,6 Oregon State University, Corvallis, OR, 2University of Delaware, Newark, DE, Texas A&M University, College Station, TX, 4Hewlett-Packard, Palo Alto, CA, 5 Coriant Advanced Technology Group, New York, NY, 6 Fudan University, Shanghai, China 1 3 Silicon photonic microring modulators (MRMs) offer a promising approach for realizing energy-efficient wavelength-division multiplexing (WDM) optical interconnects. For data-rates greater than 10Gb/s, depletion-mode MRMs are generally preferred over their injection-mode counterparts due to their shorter carrier lifetimes and resulting higher bandwidths. Unfortunately, these depletion-mode MRMs typically exhibit low PN junction tunability, thereby requiring higher modulation voltages in order to provide >6dB extinction ratios

👥 作者与机构

Hao Li1, Zhe Xuan2, Alex Titriku3, Cheng Li4, Kunzhi Yu3, Binhao Wang3,