摘要
硅基微环在硅基光网络中扮演着重要的角色,是成为光网络中光学信号处理基本单元的有力竞争者。本论文主要围绕硅基微环谐振腔的特性及其在波长转换中的应用展开研究,同时展望了硅基微环在新一代芯片光网络中的其它应用。
论文的第一章主要介绍了硅基光网络的产生和发展,重点介绍了硅基光子学的研究现状和发展态势,同时指出了其在芯片级光互联中的应用前景。
论文的第二章首先介绍了硅基微环谐振腔的产生和发展,重点讨论硅基微环谐振腔的谐振理论及主要参数的分析,理论结合仿真,阐述了微环谐振腔的基本工作原理。
论文的第三章首先分析了硅基光波导中的非线性效应以及在硅基光波导中的基于四波混频的波长变换理论;其次分析了在硅基微环中进行波长转换的基本理论,并结合仿真分析了影响其转换效率的因素;最后在理论和仿真中分析了微环中所特有的一种可以在四波混频过程中准自动实现相位匹配的方法,验证了它在不提高器件复杂度前提下对波长转换效率的改善,同时分析了这一过程中线性损耗和非线性损耗队波长转换效率的影响,也给出了波长转换效率随泵浦光功率的变化情况。
论文的最后一章总结了硅基微环在波长转换中的应用并展望了它在硅基光互联中广阔的应用前景。
论文的创新点体现在对基于硅基微环的波长转换的研究和分析,并提出了一种实现准自动相位匹配的四波混频的方法,从而有效地改善了波长转换的效率,并对仿真结果进行分析,对设计基于硅基微环谐振腔的波长转换器件具有一定的指导意义。
Microring resonator plays an important role in optical network based in silicon. It is a powerful competitor to be the basic unit of new generation optical interconnect network in the signal processing. The main focus of this paper is the study of silicon micro-ring resonator's characteristics and applications in wavelength conversion, and also looking forward to other applications of silicon micro-ring in a new generation of chips optical network.
The first chapter introduces the emergence and development of the silicon-based optical network, focusing on the research status and development trend of silicon-based photonics, broughting up the application in chip-level optical interconnects.
The second chapter introduces the emergence and development of silicon micro-ring resonator, focusing on resonance theory and the analysis of main parameters of silicon micro-ring resonator. The basic operating principle of micro-ring resonators is described both on therory and simulation.
Chapter III of the paper analyzes the nonlinear effects in silicon-based optical waveguides and wavelength conversion theory in silicon-based waveguides by four-wave mixing firstly; followed by analysis of wavelength conversion in a silicon microring on the basic theory, combined with simulation analysis of factors affecting the conversion efficiency; finally, the analysis of quasi-automatic process to achieve phase match method in the micro-ring both on theory and simulation. It improves the conversion efferency without increasing the complexity of device, which is also analyzed under the linear loss and nonlinear loss in the wavelength conversion of a silicon microring, and also gives the changes of wavelength conversion efficiency with pump power.
The final chapter of the paper summarizes the wavelength conversion application in silicon micro-ring and looks forward it in the silicon-based optical interconnects with a broad application prospect.
The innovation of this paper is reflected on the research and analysis of wavelength conversion in a silicon micro-ring, and presents a realization of quasi-automatic four-wave mixing phase-matching method, which effectively improved the efficiency of wavelength conversion, and simulation results were analyzed. It is helpful for the design of wavelength conversion device that based on silicon micro-ring resonator.
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