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

从历史上看，互联网骨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。如今，光纤系统面临的最大挑战之一是如何在CMOS晶体管速度已经饱和的情况下，继续将电子电路的带宽提高到100 GHz甚至更高。 如果没有这样的进展，6 G移动的网络和人工智能就无法继续扩展。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世纪末之后扩展。 我们将研究和开发用于光纤系统的电子电路，该系统以每秒1.5太比特的速度传输和接收数据。该数据速率比商业系统快约4倍。 每比特消耗的能量将比今天的技术至少低2倍。我们的方法使用一个新的450 GHz的SiGe BiCMOS技术，现在正在开发和新颖的电路拓扑结构的线性宽带光调制器驱动器和时间交错的线性模数转换和数模转换光纤接收器和发射器前端，以实现最高的带宽和数据速率每光波长在最低的成本和能量每比特。 这确保了我们的解决方案将是低功耗、低成本的，与大规模制造工艺兼容，并可扩展到未来使用几种光波长的多太比特传输。 该项目将通过创造可转化为未来产品和就业机会的新技术，以及培训高技能创新者，加强Ciena在长途光纤系统中的领导地位以及加拿大在信息和通信技术领域的作用，使Ciena和加拿大受益。

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.