动态高速大数据承载光网络中突发自适应相干光传输技术研究

高速高效低时延大数据承载光网络是大数据时代信息网络的重要发展方向，其核心机理、技术途径与实现方法是目前迫切需要解决的关键问题。本项目将重点研究:(1) 动态突发相干光传输系统模型建立与高速高效高阶多维自适应光编码调制机制与实现方法；（2）突发快变光纤信道损伤特性和抑制补偿机理、多调制格式通用相干接收机制与突发相干接收中快变信道损伤抑制补偿DSP算法；（3）超100Gbps突发自适应相干光传输系统实现方案设计与实验系统建立以及创新技术方案的实验验证。 . 通过以上创新性理论研究和科学实验工作，拟在高速高效高阶多维自适应光编码调制、突发相干接收中低复杂度低时延低开销的多损伤抑制补偿DSP算法以及单信道120 -480Gbps突发自适应相干光传输实验系统等方面实现重要突破，预期成果可为实现高速大容量、高效、低时延、动态大数据承载光网络奠定坚实理论与技术基础，有效支撑大数据承载网络的发展。

High speed Big Data carrying optical network, which has high efficiency and low delay, is becoming an important development trend of information network in the era of Big Data. The core mechanism, technical approach and implementation method of the high speed, high efficiency and low delay Big Data carrying optical network are currently the key issues needed to be addressed urgently. The proposed project will focus on the following three parts of research works..(1) Establishment of the theoretical model for dynamic burst coherent optical transmission system, and proposing of the modulation mechanism and implementation method of high-order multi-dimensional adaptive optical coded modulation. These mechanism and methods should support high efficient optical burst coherent transmission beyond 100Gbps..(2) Analyses of characteristics and compensation mechanism of various distortions generated from the burst fast-changing optical fiber channel, proposing of the coherent detection mechanism suitable for multiple high-order modulation formats and the compensation DSP algorithms in the burst coherent detection receiver for impairments from fast-changing optical fiber channel. These mechanism and algorithms should be not only feasible for very high speed implementation beyond 100Gbps, but also with low complexity, low delay and low overhead..(3) Design of implementation scheme and the development of experimental system of burst adaptive coherent optical transmission beyond 100Gbps, and the experimental validation of the innovative technology solutions..The project has great hopes to achieve an important breakthrough in multi-dimensional high-order adaptive coded modulation which would support flexibly high speed and high efficiency, impairment suppression DSP algorithms with low complexity, low delay and low overhead for various impairments in the burst coherent detection, and the experimental system of burst adaptive coherent optical transmission operated at 120-480Gbps line bit rate per channel, and so on. Expected achievements can lay a solid theoretical and technical foundation for realizing the dynamic Big Data carrying optical network with high efficiency, high speed, large capacity and low delay, as well as effectively supporting the development of Big Data carrying optical network.