高采样率、高量化分辨率一体化全光模数转换关键技术研究

项目名称： 高采样率、高量化分辨率一体化全光模数转换关键技术研究

项目编号： No.61475023

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 王葵如

作者单位： 北京邮电大学

项目金额： 81万元

中文摘要： 海量信息时代对现有的信息处理技术提出了严峻的挑战。信息处理技术需要高采样率、高量化分辨率的模数转换方案，然而由于微电子技术受电子瓶颈束缚严重，如何发挥光技术的优势，实现高性能的模数转换是当前信息处理领域的研究热点。本项目拟利用光子晶体光纤、硅基波导介质材料及其非线性效应，研究全光域中信号采样、量化和编码的新机理、新方法。研究模数转换过程中的非线性失真问题以及采样率、量化分辨率、编码精度等性能指标的影响因素，提出信号广播与参量采样结合的高速采样率方案，提出量化分辨率有效提升的全光级联量化编码方法以及相位和频率相结合的二维联合量化编码方法。建立由低复杂度的采样、量化和编码模块组成的全光模数转换系统，实现一体化、高采样率、高量化分辨率的全光模数转换。本项目的研究与成果将丰富全光模数转换技术的相关理论，为超高速信号全光模数转换的实现提供新方法和新途径，促进全光模数转换技术的研究与发展。

中文关键词： 非线性光纤光学；全光信号处理；非线性光学效应；光子晶体光纤；四波混频

英文摘要： The existing information processing technology faces serious challenge for the massive information age, and analog-to-digital conversion with high sampling rate and high quantizing resolution is urgently required. Since the microelectronic technology has been seriously hindered by the electronic bottleneck, how to take advantage of optical technology to achieve high-performance analog-to-digital conversion is a research hotspot. In this project, based on photonic crystal fiber, silicon waveguide dielectric material and nonlinear effects of them, the novel photonic mechanism and method of the high-performance signal sampling, quantizing and encoding in all-optical analog-to-digital conversion will be investigated. Nonlinear distortion issues and their influences on sampling rate, quantization resolution and encoding accuracy will be analyzed. A high-speed sampling rate technical solution combining signal broadcasting and parametric sampling will be presented, and all-optical cascaded quantizing and coding method with effectively enhanced quantizing resolution as well as a combination of phase and frequency is used to achieve the two-dimensional joint of quantization coding method. An all-optical analog-to-digital conversion system will be established, which is composed of sampling, quantization and coding modules with low complexity, and integrated all-optical analog-to-digital conversion technology with high sampling rate and high quantization resolution will be realized. The research and achievements of the project will enrich principles about all-optical analog-to-digital conversion technology, and new methods and ways to ultra-high-speed all-optical analog-to-digital conversion will be provided and promoted.

英文关键词： Nonlinear Fiber Optics;All-optical signal processing;Nonlinear optical effect;pohotonic crystal fiber;Four wave mixing