High-Speed Digital Signal Processing for Terabit Speed in Optical Access Networks

近年来光通信领域的研究主要集中在高速短距离连接上。特别是对高速数据中心通信日益增长的需求，以太比特数据速率为总体目标，是驱动力。与使用复杂光学和调制格式的长途系统相比，考虑到成本方面和标准光学元件的使用，需要一种更简单的方法。在本项目中，将研究链路长度为1m至1km的太比特数据中心通信的不同技术的潜力。这里可能的方法是增加调制带宽，使用更高的调制格式，结合反馈和链路自适应的高级信道编码。此外，还将研究不同的多路复用格式，并特别关注数据中心通信的需求。这个项目的一般方法是将高速数字信号处理与标准电气和光学元件结合使用。

Recent research activities in optical communication are focused on high-speed short range connections. Especially the increasing demand for high-speed data centers communication, with the overall goal of terabit data rates, is the driving force. Compared to long-haul systems, where complex optics and modulation formats are used, a simpler approach is necessary taking into account the cost aspect and the use of standard optical components.In this project, the potential of different techniques for terabit data center communication, for link lengths of 1m to 1km shall be studied. Possible approaches here are an increased modulation bandwidth, the use of higher modulation formats, advanced channel coding in combination with feedback and link adaptation. Additionally, different multiplexing formats will be investigated, with a particular focus on the requirements for data center communications. A general approach in this project will be the use of high-speed digital signal processing in combination with standard electrical and optical components.