新型多维光学信息传输关键技术研究

项目名称： 新型多维光学信息传输关键技术研究

项目编号： No.61335005

项目类型： 重点项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 闫连山

作者单位： 西南交通大学

项目金额： 260万元

中文摘要： 多维(包括调制格式和复用方式)是未来高速、大容量、长距离光纤传输系统必备特征之一。研究新型多维传输关键技术对提升信息容量和发展下一代光纤通信系统具有重要科学和社会意义。本项目围绕维度之间(Inter-Dimension)和维度内部(Intra-Dimension)所涉及的关键科学问题，以模式/偏振复用与高阶调制信号传输为主要对象，重点研究新型高频谱效率多维复用方式，多维传输系统链路损伤机制和信号性能监控技术，以及多维传输信号的补偿与优化技术等。主要目标包括：(1)搭建完整的模式与偏振复用传输系统仿真与实验平台；(2)形成系统的有关多维传输系统链路损伤机制(特别针对“维度相关”损伤)理论体系；(3)实现多维传输系统中不同关键性能参数的有效(参量分离)监控手段；(4)针对链路非线性损伤提出并完善低复杂度高效补偿方案；(5)实现多维传输系统中维度增益平坦、低噪和高增益的新型放大技术。

中文关键词： 光纤通信;偏振复用;多模光纤;调制格式;多维

英文摘要： “Multi-dimension”, including multi-level modulation formats and multi-dimensional multiplexing schemes, is one of the essential characteristics of future high-speed, high-capacity and long-distance optical fiber transmission systems. Therefore, it would be valuable, in both scientific and social point of view, to investigate related key technologies to enhance the information capacity and to develop next generation optical transmission systems. In this proposal, taking inter-dimension and intra-dimension as key issues and the mode/polarization multiplexed and higher-order modulated signal transmission as main goals, we plan to investigate novel high spectral-efficient multiplexing technologies, mechanisms of link impairments and performance monitoring schemes for multi-dimensional transmission systems, as well as compensation and optimization of multi-dimensional signals. Final goals of the proposal include but not limited to the following: (1) establishing a simulation and experiment platform for mode and polarization multiplexed transmission systems; (2) establishing a systmatic theory about link impairments in multi-dimensional transmission systems, especially those inter-dimensional related ones; (3) demonstrating effective performance monitoring of some key parameters in the multi-dimensional transmission systems; (4) proposing efficient compensation schemes with low complexity for nonlinear impairments along the link; (5) obtaining low-noise, high-gain and dimension-independent amplification techniques for multi-dimensional transmission systems.

英文关键词： optical fiber communications;PDM;multi-mode-fiber;modulation format;multi-dimension