微环谐振器的耦合和特性的分析与研究

发布时间：2018-05-07 14:23

本文选题：微环谐振器 + 波导　；参考：《兰州交通大学》2015年硕士论文

【摘要】：随着科技的发展,人们对信息处理的要求越来越高,电互连由于客观条件的限制并不能满足人们的需求,光互连凭借其优势走上了历史舞台,逐步成为广大科研工作者的研究热点。微环谐振器作为光器件的代表之一得到了国内外的科研机构的重视,在近年取得了较为不俗的成绩。由于基于微环谐振器的光路由器、导向逻辑器件、滤波器等光器件层出不穷,故对微环谐振器的耦合和特性进行分析研究就显得十分重要。本论文通过研究微环谐振器的输出特性以及波导间的耦合,分析出器件结构参数与输出特性之间的关系,并提取出更为准确的耦合系数；借由模拟“鼎”形微环谐振器的输出图谱,提取出相应的器件结构参数。开展的主要工作及主要成果有：(1)研究微环谐振器的基本理论,分析基本元件的物理模型,并论述了分析微环谐振器的方法。定向耦合器以及传输线是微环谐振器的基本元件,通过定向耦合器以及传输线的传输矩阵,可以描述出微环谐振器的传输特性。(2)分析微环谐振器器件的输出特性。在研究微环谐振器的基本模型以及工作原理的基础上,对单环单波导结构微环谐振器、单环双波导结构微环谐振器以及级联微环谐振器进行数值模拟,对微环半径、耦合系数、环程透射系数、环间距等主要器件参数对器件输出特性的影响进行分析。(3)运用耦合模理论与传输矩阵法相结合的研究方法对直波导间的耦合以及弯波导间的耦合进行模拟分析。在此过程中,明确了波导结构参数与波导耦合效率之间的关系,指出了波导间距、波导弯曲半径以及耦合系数三者之间的关系。(4)对“鼎”形微环谐振器进行数值模拟。本论文从该器件的工作原理入手对器件进行建模。通过已给出的数值范围,对器件的输出特性进行粗略模拟,再利用主要器件参数、结构参数与器件输出特性之间的关系,对数值模拟过程中的器件结构参数进行微调,使器件模拟输出谱图不断逼近器件实验结果,最后提取出器件的主要结构参数。通过本论文的工作,得到了器件结构参数与输出特性间的关系,提取出了随器件结构变化而得到的耦合系数,优化改进了微环谐振器的数值模拟方法,为研究微环谐振器提供了一种新的思路。
[Abstract]:With the development of science and technology, people are demanding more and more information processing. Because of the limitation of objective conditions, the optical interconnection can not meet the needs of people. Optical interconnection has stepped onto the stage of history by virtue of its advantages. Gradually become the research hotspot of the vast number of scientific research workers. As one of the representatives of optical devices, microring resonators have been paid more attention by domestic and foreign scientific research institutions, and have made great achievements in recent years. Since optical routers, guiding logic devices, filters and other optical devices based on microring resonators emerge in endlessly, it is very important to analyze and study the coupling and characteristics of microring resonators. By studying the output characteristics of microloop resonators and the coupling between waveguides, the relationship between device structure parameters and output characteristics is analyzed, and a more accurate coupling coefficient is extracted. The corresponding device structure parameters are extracted from the output spectrum of the analog tripod microring resonator. The basic theory of microring resonator is studied, the physical model of basic components is analyzed, and the method of analyzing microring resonator is discussed. The directional coupler and transmission line are the basic components of the microloop resonator. The transmission characteristics of the microloop resonator can be described by the transmission matrix of the directional coupler and the transmission line. On the basis of studying the basic model and working principle of microloop resonator, the numerical simulation of single-ring single-waveguide micro-ring resonator, single-ring double-waveguide micro-ring resonator and cascade micro-ring resonator is carried out, and the microring radius and coupling coefficient are analyzed. The influence of the main device parameters such as the transmission coefficient of the ring path and the ring spacing on the output characteristics of the device is analyzed. (3) the coupling between the straight waveguides and the coupling between the curved waveguides is simulated and analyzed by using the coupling mode theory and the transmission matrix method. In the process, the relationship between waveguide structure parameters and waveguide coupling efficiency is clarified, and the relationship among waveguide spacing, waveguide bending radius and coupling coefficient is pointed out. This paper starts with the working principle of the device to model the device. According to the given numerical range, the output characteristics of the device are roughly simulated, and then the main device parameters, the relationship between the structure parameters and the output characteristics of the device are used to fine-tune the device structure parameters in the process of numerical simulation. The analog output spectrum of the device is kept close to the experimental results, and the main structure parameters of the device are extracted. Through the work of this paper, the relationship between the device structure parameters and the output characteristics is obtained, the coupling coefficient obtained with the device structure variation is extracted, and the numerical simulation method of the microloop resonator is optimized. A new idea is provided for the study of microring resonators.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN629.1

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