A 2-Channel 800Gb/s Transceiver for Coherent-Lite Applications with <300ns Latency in 5nm FinFET

📋 论文概要

本文提出了一款适用于2-20km距离相干光通信的2通道800Gb/s全收发器，采用5nm FinFET工艺实现了<300ns的超低延迟。该设计解决了下一代数据中心互连中对高速、低延迟光收发器的需求。

💡 主要创新点

• 首次在5nm FinFET工艺上实现2通道800Gb/s相干光收发器，支持2-20km距离。
• 通过电路和架构优化，将端到端延迟控制在300ns以内，满足低延迟应用要求。
• 采用相干光检测技术（coherent-lite）在保持高速率的同时降低功耗和复杂度。

🏷 关键词

📄 原文摘要

Fulvio Martinelli1, Victor Karam2, Devrishi Khanna2, Mehdi N. Khiarak2, Sasan Cyrusian3, Mehdi Davoodi3, Marco Garampazzi1, Nimesh N. Miral1, Fabio Giunco1, Ivan Fabiano1, Nicola Codega1, Claudio Asero1, Daniel L. Herbas1, Enrico Temporiti1, Shawn Scouten2, Kishore Kota3, Yang Fu4, Ruibin Jin3, Josef Mueller4, Michael Leung3, Arash Farhoodfar4, Stephen Jantzi3, Ken Chang4 Marvell, Pavia, Italy, 2Marvell, Ottawa, Canada, 3Marvell, Irvine, CA, 4Marvell, Santa Clara, CA 1 Abstract A full transceiver suitable for coherent-lite optical communications over 2-to-20km distances is presented. The low-latency transceiver combines the advantages of advanced coherent modulation with the benefits and manufacturing scale of O-band optics to deliver a power- and cost-effective module. Fabricated in 5nm FinFET, it comprises two 400Gb/s/λ transmitters and receivers to realize a 2-channel DP-16QAM 800Gb/s link tailored to the

👥 作者与机构

Marco Sosio1, Claudio Nani1, Enrico Monaco1, Nicola Ghittori1, Domenico Albano1, Alessio Di Pasquo1, Alessandro Bosi1, Travis Lovitt2, Gabriele Gira1,