Linear Circuit Topologies for Fibreoptic Front Ends with > 100 GHz Bandwidth

从历史上看，互联网主干和数据中心的光纤系统一直是半导体技术的主要驱动力之一，将摩尔定律推向了根本极限。它们需要最先进的3 nm FinFET、450 GHz SiGe BiCMOS或InP晶体管技术，以及硅光子学和InP光子学技术。目前，在CMOS晶体管的速度已经饱和的情况下，如何继续将电子电路的带宽增加到100 GHz以上是光纤系统面临的最大挑战之一。如果没有这样的进展，6G移动网络和人工智能就无法继续扩大规模。该项目将探索突破性的电子-光子接口电路，使云计算和互联网流量速度能够在本十年结束后扩大。我们将研究和开发光纤系统的电子电路，这些系统以超过1.5太比特每秒的速度发送和接收数据。这种数据速率比商业系统快约4倍。每一位的能量消耗将至少比今天的技术低2倍。我们的方法使用了目前正在开发的新450 GHz SiGe BiCMOS技术，以及用于线性宽带光调制器驱动器和时间交错线性模数和数模光纤接收器和发射器前端的新型电路拓扑，以最低的成本和每比特的能量实现可能的最高带宽和每光波长的数据速率。这确保了我们的解决方案将是低功率、低成本的，与大规模制造工艺兼容，并可扩展到未来使用几个光学波长的多太比特传输。该项目将使Ciena和加拿大受益，因为它创造了可转化为未来产品和就业机会的新技术，并培训了高技能的创新者，加强了Ciena在长途光纤系统方面的领导地位，以及加拿大在信息和通信技术领域的作用。

Historically, the fiberoptic systems at the backbone of the Internet and in data centres have been one of the main semiconductor technology drivers, pushing Moore's law to its fundamental limits. They require the most advanced 3nm FinFET, 450 GHz SiGe BiCMOS or InP transistor technologies, as well as silicon photonics and InP photonics technologies.Today, one of the greatest challenges facing the fiberoptic systems is how to continue to increase the bandwidth of the electronic circuits to 100 GHz and beyond given that the speed of CMOS transistors has saturated. Without such progress, 6G mobile networks and AI cannot continue to scale. This project will explore ground-breaking electronic-photonic interface circuits to enable cloud computing and internet traffic speed to scale beyond the end of this decade. We will investigate and develop electronic circuits for fibreoptic systems that transmit and receive data at over one and a half terabits per second. This data rate is ~4 times faster than commercial systems. The energy consumed per bit will be at least 2 times lower than today's technologies. Our approach uses a new 450 GHz SiGe BiCMOS technology now under development and novel circuit topologies for linear broadband optical modulator drivers and time interleaved linear analog-to-digital and digital to analog fibreoptic receiver and transmitter front ends to achieve the highest possible bandwidth and data rate per optical wavelength at the lowest cost and energy per bit. This ensures that our solution will be low-power, low-cost, compatible with mass manufacturing processes, and scalable to multi-terabit transmission using several optical wavelengths in the future. This project will benefit Ciena and Canada by creating new technologies that can translate into future products and jobs, as well as the training of highly skilled innovators, strengthening Ciena's leadership position in long haul fibreoptic systems and Canada's role in the information and communication technology sector.