EMT: Nanophotonic Ultra-Low latency Data Interconnection Network for High Performance Computing

在保持无存储交换结构的同时，将交换元件扩展到纳米尺度对光数据包的内部处理提出了巨大的挑战。在器件层面，用于信息处理的纳米光子逻辑元件将遵循两条并行路径：采用高折射率对比纳米光子学的电光开关节点和基于光子带隙纳米结构的全光开关节点。这两种实现都将展示超密集纳米光子集成的可行性，最终实现半导体芯片上的超低延迟计算网络。更广泛的影响将为K-12学校教师开发关于光网络和纳米光子学的具体外展模块，并在纽约大都会地区少数民族和代表性不足的学生比例很高的学校展示。我们将积极招募暑期研究项目的本科生到哥伦比亚大学和佐治亚理工学院进行研究生学习，该计划旨在利用纳米光子学的非凡能力和光网络的巨大通信能力，创造一种高风险的、革命性的高性能计算范式。我们的方法解决了未来大规模计算系统可能面临的最关键的性能挑战，即日益严重的通信瓶颈。独特的集成程序融合了基础纳米光子物理，光学系统，网络拓扑和性能分析方面的专业知识，从而为高性能计算的真正革命性进步提供了无与伦比的机会。除了对未来高端计算系统的直接影响外，这项提议的工作可能会将高度创新的光子技术引入新的商业应用。通过展示光分组交换和纳米光子子系统的可行性，目前部署高容量全电子交换机的企业可能会考虑未来插入基于纳米光子的互连网络。

Intellectual MeritThe scaling of switching elements to nanometer lengthscales raises a formidable challenge to the internal processing of the optical data packets while maintaining a memory-free switching fabric. At the device level,nanophotonic logic elements for information processing will follow two parallel paths:electro-optic switch nodes employing high-index-contrast nanophotonics and an all-optical switch node based on photonic band gap nanostructures.Both implementations will demonstrate the feasibility for ultra-dense nanophotonic integration,towards the ultimate realization of an ultra-low latency computational network on the semiconductor chip.Broader Impact Specific outreach modules on optical networks and nanophotonics will be developed for K-12 school teachers,and presented at schools with a high proportion of minority and underrepresented students around the New York metropolitan area.Undergraduates from our summer research programs will be actively recruited to graduate studies at Columbia and Georgia Tech.The proposed program aims to harness the extraordinary capabilities of nanoscale photonics and theimmense communication capacities of optical networks to create a high-risk,revolutionary paradigm inhigh-performance computation.Our approach tackles what is perhaps the most critical performancechallenge to future large-scale computing systems,namely the mounting communications bottleneck.The uniquely integrated program merges expertise in fundamental nanophotonic physics, optical systems,network topology,and performance analysis,and thus presents an unparalleled opportunity for trulyrevolutionary advances in high-performance computing.Beyond the direct impact on future high-endcomputing systems,this proposed work may potentially introduce highly innovative photonictechnologies towards new commercial applications.By demonstrating the viability of optical packetswitching and nanophotonic subsystems businesses which currently deploy high-capacity fully electronicswitches may consider the future insertion of nanophotonic-based interconnection networks.