Optical Fiber Communication Systems for the Connected World

光纤通信系统是互联世界的支柱。在全球通信网络上传输的几乎所有信息都表示为二进制数据，并被转换为在光纤上传播的光脉冲。对基于云的存储和服务(例如，软件即服务(SaaS))、社交媒体服务(例如，Facebook)、视频流(例如，YouTube、Netflix)和机器对机器应用(例如，物联网)的需求正在推动高带宽连接的进步。这些服务和应用正在推动对连接需求的爆炸性增长(全球互联网流量的复合年增长率为40%)，而这只能通过光纤通信系统的持续创新来满足。该研究计划将努力在两个相互关联的光纤通信系统主题上取得突破：长距离系统(例如，核心网络、区域网络)和短距离系统(例如，城域网络和数据中心互联(DCIS))。对于长距离系统，提出的研究针对柔性网格弹性光网络的两个关键挑战：提高频谱效率和传输距离。拟议的短程系统研究将量化具体的损害，并制定与电力消耗、规模和成本限制相称的缓解战略。计划的成果是：i)通过容忍、补偿并最终利用光纤非线性来提高利用相干检测的长距离传输系统的频谱效率和可实现的传输距离的技术；以及ii)通过增强低复杂性直接检测收发机的性能和功能来增加利用直接检测的短距离系统的容量和覆盖范围的技术。我们提出的研究对该领域的影响将是通过融合光学性能监测、调制格式优化、光纤非线性缓解和收发信机设计的概念来推进光纤传输系统的基础科学和工程。加拿大人将受到项目创新的影响；这些创新将产生具有先进智能和更高容量的光纤网络，使服务提供商能够以更低的成本向住宅和企业客户提供以数据和视频为中心的产品。该项目将培养四名博士。两名学生和两名暑期学生学习前沿技术，使他们做好准备，为开发新一代信息和通信技术(ICT)产品和服务做出贡献，使加拿大人受益。

Optical fiber communication systems are the backbone of the connected world. Virtually all information transmitted over the global communications network is represented as binary data and transformed into optical pulses that propagate over optical fibers. Advances in high-bandwidth connectivity are being driven by demands for cloud-based storage and services (e.g., Software as a Service (SaaS)), social media services (e.g., Facebook), video streaming (e.g., YouTube, Netflix), and machine-to-machine applications (e.g., Internet of Things). These services and applications are fueling an explosive increase in demand for connectivity (the compound annual growth rate of global Internet traffic is 40%) that can only be met by continued innovation in optical fiber communications systems. The research program will endeavor to produce breakthroughs on two inter-related optical fiber communications systems themes: long-reach systems (e.g., core networks, regional networks,) and short-reach systems (e.g., metropolitan networks, and Data Center Interconnects (DCIs)). For long-reach systems, the proposed research is directed at two key challenges for flexible grid elastic optical networks: increasing the spectral efficiency and transmission distance. The proposed short-reach system research will quantify specific impairments and devise mitigation strategies commensurate with constraints on power consumption, size and cost. The planned outcomes are fundamental advances in i) techniques for increasing the spectral efficiency and achievable transmission distance of long-reach transport systems utilizing coherent detection by tolerating, compensating and ultimately exploiting fiber nonlinearities; and ii) techniques for increasing the capacity and reach of short-reach systems utilizing direct detection by enhancing the performance and functionality of low complexity direct detection transceivers. The impact of our proposed research to the field will be to advance the fundamental science and engineering of optical fiber transmission systems by fusing the concepts of optical performance monitoring, modulation format optimization, fiber nonlinearity mitigation, and transceiver design. Canadians will be impacted by program innovations; these innovations will produce optical networks with the advanced intelligence and higher capacities that will enable service providers to offer data and video-centric products to residential and business customers at lower costs. The program will train four Ph.Ds. students and two summer students in leading-edge technologies, preparing them to contribute to the development of next generation Information and Communications Technology (ICT) products and services that will benefit Canadians.