A Dual 64Gbaud 10kΩ 5% THD Linear Differential Transimpedance Amplifier with Automatic Gain Control in 0.13μm BiCMOS Technology for Optical Fiber Coherent Receivers

📋 论文概要

该论文提出了一款双通道64Gbaud线性差分跨阻放大器，采用0.13μm BiCMOS工艺，实现了10kΩ跨阻增益和5%总谐波失真，并集成了自动增益控制功能，解决了长距离光通信中高线性度、低噪声前端的需求。

💡 主要创新点

• 采用双通道架构实现64Gbaud的高符号率，支持400Gb/s以太网标准。
• 通过自动增益控制（AGC）在10kΩ高增益下保持5%的低总谐波失真（THD），确保线性度。
• 在0.13μm BiCMOS工艺中实现了高带宽与低噪声的平衡，适用于相干光通信系统。

🏷 关键词

📄 原文摘要

Schwarz, Munich, Germany, 4 Finisar, Berlin, Germany, 5TU Berlin, Berlin, Germany 1 2 Long-haul optical links are experiencing a transition to coherent techniques because they enable the use of modulation techniques with high spectral efficiency, such as QPSK and QAM [1], which in turn require highly linear lownoise optical-electrical front-ends. To cope with the ever-growing demand for high data rates in the consumer market, the Ethernet standard for long-haul optical links is moving soon from 100 to 400Gb/s. A possible candidate symbol rate to reach this bit rate using complex modulation formats is 64Gbaud. In light of that, this paper presents a chip containing a dual linear TIA with automatic gain control (TIA-AGC) suitable for coherent detection. The dual TIAAGC chip presented here is integrated with 90

👥 作者与机构

Ahmed Awny1, Rajasekhar Nagulapalli1,2, Daniel Micusik1,3,

Jan Hoffmann4, Gunter Fischer1, Dietmar Kissinger1,5, Ahmet Cagri Ulusoy1 IHP, Frankfurt(Oder), Germany, now with Inphi Corporation, Northampton, United Kingdom, 3 now with Rohde &