先进调制的超高速光信号幅度/相位检测分析

项目名称： 先进调制的超高速光信号幅度/相位检测分析

项目编号： No.61275164

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 刘元山

作者单位： 中国科学院西安光学精密机械研究所

项目金额： 82万元

中文摘要： 超高速光信号幅度/相位信息监测分析涉及飞秒激光产生、超快非线性光学、线性光取样、相干探测、数字信号处理和计算机图形处理等学科领域，是一个交叉性很强的学科。该技术是保证下一代超高速光子网络、物联网、超级计算机光互联、超高速军事通信网和光卫星通信网稳定、灵活和安全运行的关键,具有巨大应用前景。目前带宽高达太赫兹的光取样示波器，只能监测幅度信息，而能监测相位信息的线性取样由于均衡探测器带宽的限制和相位跟踪软件算法的复杂性，带宽和实时监测受到极大制约。本项目在非线性取样的基础上，引入线性取样和相干探测技术，把非线性取样的高带宽和线性取样相位敏感的优点结合起来，达到准确测量先进调制制式下（例如：DPSK,DQPSK,N-QAM）超高速光数据的幅度和相位信息。并重点研究内差（intradyne）相位探测方案下快速相位跟踪、快速软件时钟恢复算法，并建立非线性取样和线性取样结合的实验系统。

中文关键词： 线性光取样；非线性光取样；先进调制；幅度/相位检测；

英文摘要： Monitoring and analysis of ultra-high-speed optical signal amplitude and phase information is a cross subject,which involves femtosecond laser generation, ultra fast nonlinear optics, linear optical sampling, coherent detection, digital signal processing ,computer graphics processing and other fields.It is the key technique to ensure that the next generation high-speed photonics network, Internet of things, the super computer optical interconnection, high-speed military communication network and optical satellite communication network stably, flexibly and safely work,which has great application prospect. Nowadays terahertz bandwidth optical sampling oscilloscope just only monitor the amplitude information,while the bandwidth and real-time monitoring of the linear optical sampling technique is limited due to balance detector bandwidth and phase tracking software algorithm complexity. The task of this research project is introducing linear optical sampling and coherent detection technique into nonlinear optical sampling,which could combine the wide bandwidth of nonlinear optical sampling with phase sensitive advantage of linear optical sampling, then could monitor the amplitude and phase information of advanced modulation mode (for example: DPSK, DQPSK, N-QAM ) ultra-high speed optical data. We focus on the f

英文关键词： Linear optical sampling；LiNonlinear optical sampling；Advance modulation；Monitoring of optical amplitude and phase；