超奈奎斯特限定的光子信能传送系统关键技术研究

The photonic information and energy communication is a kind of communication mechanism which coordinates the transmission of photonic energy and optical information. It can realize the photonic energy supply and optical information transmission in one fiber simultaneously, which becomes a hot research area in future optical communication system. The high spectral efficiency, low noise and high energy transfer efficiency are key issues. The high spectral efficiency requires considering the code shaping and interference elimination; the realization of low noise needs to explore the mechanism of complex field between optical parameters and energy; the scheduling and switching of the signal need the high-efficient energy transformer to provide the enough energy. .Based on the array beam shaping, this application will research the faster than Nyquist based fiber transmission model by enhancing the code-restricted relation among overlapped carriers, analyze the multi-dimensional code modulation and carrier shaping methods, and realize the high spectral efficiency optical transmission system. We will propose the complex action method of photonic energy and optical parameters, including the low noise parametric amplification and redundant energy supply mechanism between the energy light and signal light. We will also study the photonic energy diversity receive and time-sharing supply algorithm based on space and time allied action, and build the experiment system of faster than Nyquist based photonic information and energy transmission. The research results would have theoretical and practical significance for the development of next generation high spectral efficiency and high signal to noise ratio optical communications system with energy dimension.

光子信能通信是一种将光能量与光信息协调传递的通信机制，能够通过一根光纤同时实现光子供能与光信息传递，是未来光纤通信系统的热点研究领域，高谱效率、低噪声、高能量转换效率是实现该系统的三个关键。高谱效率需要协同考虑信号的编码成形和干扰抑制；低噪声的实现需要探索光参量与能量间的复合场作用机制；信号的调度和切换需要高能量转换效率的模块提供能量供给。.本申请将基于阵列波束成形，通过强化交叠载波之间的编码约束关系，研究超奈奎斯特限定的光纤传输模型，综合分析多维编码调制与载波成形方法，实现高谱效率的光传输系统；提出光子能量与光参量的复合作用方法，包括能量光与信号光的低噪参量放大与残余能量供能机制；研究基于空域与时域的联合作用的光子能量分集接收与分时供能算法，搭建超奈奎斯特限定的光子信能传输实验系统。研究成果可为发展下一代高谱效率、高信噪比、具备能量维度的光通信系统提供参考，具有一定理论意义与实用价值。

光子信能通信是未来光纤通信系统的热点研究领域。项目围绕超奈奎斯特光纤传输模型、光能量与参量的复合作用机制以及相应的信号处理方法等方面开展了一系列理论性和探索性研究工作。项目提出了基于多载波滤波器组的超奈奎斯特光传输系统模型，分析了参量与二阶拉曼泵浦混合作用机制，提出了包括多参量过程混合级联的多载波产生方法、基于超奈奎斯特系统的信号处理及编码调制等多种方案。项目的研究可促进下一代光传输系统中相应理论和技术的发展。. 在项目执行期间，发表SCI期刊论文18篇，授权国家发明专利10项，申请国家发明专利7项；培养博士研究生5名，毕业3名；培养硕士研究生3名，毕业2名。项目负责人入选教育部青年长江学者，获国家科技进步二等奖1项。