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1、目录ABSTRACT3一、 绪论51.1 光互连网络技术概述51.1.1 电互连技术的特点与局限51.1.2 光互连网络的特点与优势61.1.3 片上光互连网络71.2 微环的由来和发展101.3论文的工作与主要创新点111.3.1 论文工作及内容安排111.3.2论文创新点12二、 理论基础142.1微环的基本原理142.1.1单个微环152.1.2 微环的参数和指标172.1.3串联双环232.1.4交叉双环252.2片上光网络基础262.2.1常见的光互连网络272.2.2重要参量292.3本章小节30三、 基于串联双环的NN的交换网络323.1串联双环的设计333.2网络拓扑403.3
2、仿真结果及分析413.3.1仿真平台简介413.3.2结果及分析423.3.3优缺点及改进方向453.4本章小结45四、 基于交叉双环的88 Bense网络464.1交叉双环的设计464.2网络拓扑504.2.1 Bense网络514.2.2 交叉波导设计514.3仿真结果及分析554.4本章小结55五、 总结与展望57致谢59参考文献60在学期间的研究成果61摘要 现有的互连网络面对着日益增长信息流量和越来越多的处理端口，其固有的局限性越来越难以掩饰。主要矛盾集中在基于电的互连方式在带宽、能耗、抗干扰性等方面难以满足发展需求。摩尔定律被打破是迟早的事情了。此时基于光信号的互连方式由于近年来研
3、究的不断发展已经有了弥补甚至取代电互连的希望。片上光互连在带宽、能耗、抗干扰性等方面有着电互连难以企及的巨大优势，而且由于能有效结合CMOS技术工艺，现在业已成为突破当前瓶颈的不二之选。论文主要研究了基于微环谐振器的片上光互连结构，分别从基本元器件的设计和片上光互连网络拓扑结构的优化两个方面进行了阐述。主要取得了以下成果： （1）论文系统的归纳总结了设计片上光互连网络的整套流程。从材料的选取到基本串联双环和交叉双环的设计优化，再到网络拓扑结构比较选取，论文都有详细阐述。 （2）论文从串联双环和交叉双环的性能指标入手，通过传输矩阵法推导出了包括场传输特性T、增强因子FE、精细度F和自由频谱范围F
4、SR等参数的表达式，并分析了耦合系数和传输系数等对这些参数的影响。论文最终设计出了工作在1550nm通信波段的半径为7m，波导宽度200nm，波导间距Gap 100 nm的串联双环。同样工作在1550波段的6m大小的交叉双环也完成了设计，其波导宽度为300nm，波导间隙100nm。 （3）论文重点提出了基于串联双环的能实现点对点任意连接的NN交换网络，并举例说明了44网络结构。是通过在谐振器上加工电极来控制的该设计具有易集成、可大规模互连、使用微环数量少、控制简单等优点。其中该结构的插入损耗约为2.2dB,消光比大于130dB。而且每次只用控制其中的两个微环。 （4）论文同样对基于交叉双环的8
5、8 Bense网络进行了尝试。利用已有的交叉双环设计，我们完成了对bense网络的设计，并对网络基本单元之间的交叉波导进行了优化设计。最后我们通过仿真软件对比了常见的互连网络，证明了该设计在功耗和面积等方面均有所提高。关键词：微环谐振器 片上光互连 串联双环 交叉双环ABSTRACT Existing interconnection network in the face of the growing traffic and deal with the more and more ports, is increasingly difficult to disguise its inherent
6、 limitations.Principal contradiction is focused on the interconnect based on electricity in such aspects as bandwidth, power consumption, anti-jamming is difficult to meet the demand of development.Moores law has been broken sooner or later.At this point based on the optical signal interconnection w
7、ay due to the development of research in recent years there has been a make up or even replace electrical interconnection of hope.Piece of glazing interconnection in such aspects as bandwidth, power consumption, anti-interference with electrical interconnection beyond the reach of a huge advantage,
8、and with combined with CMOS technology effectively, now has become the key to breakthrough the bottleneck of choice. An NN optical switch based on cascaded microring resonators on chip was proposed. As an example, the 44 optical switch was further investigated. We have successfully demonstrated its
9、relatively low insertion loss of 2.2 dB and negligible crosstalk. The extinction ratio (ER) is as large as 130 dB. Thermal tuning is employed to make the microrings be in resonance or not, which leads to a response time of several hundred s. Alternatively, doping the desired waveguide regions with p
10、-type or n-type dopants is able to achieve a better response time of several ns. The proposed design is easily integrated to a large scale with less microring resonators, which ensure a compact size and low power consumption. In this paper we proposed a method to construct NN optical switch based on
11、 cascaded microring resonators. A 44 switch was discussed in detail, and its fairly low insertion loss and crosstalk were successfully demonstrated. A quite large ER was gained as well. Initially, we described a basic 22 switching element with the transfer matrix method and got the ratio N. For a pe
12、rfect performance, a suitable k1 was found out and it was 0.3. Furthermore, the ratio of each input port and output port were deduced and showed us the satisfying performance in the pictures. Finally, the results of simulation were found to accord well with the theoretical calculations. In a word, a
13、 high performance switch based on cascaded microring resonators can be achieved with the reasonable description in the paper. Thesis mainly based on micro ring resonator are studied of glazing interconnection structure, respectively from the basic components of design and glazing interconnection net
14、work topology optimization of the two aspects are expounded.Basically achieved the following results:(1) the paper system summarized design piece polishing process of a complete set of interconnected networks.From material selection to basic series double loop and cross double loop design optimizati
15、on, to the network topology is selected, the paper has in detail.(2) the paper series double loop and cross the performance indexes of double loop, including field is deduced by transfer matrix method of transmission characteristics of T, enhancement factor FE, fine degrees F and free spectral range
16、 FSR parameters such as expression, and analyzed the coupling coefficient and transmission coefficient on the influence of these parameters.Paper finally design out of the work in a radius of 1550 nm communication band (including 7 m, width of 200 nm, waveguide series double ring spacing Gap 100 nm.Sa
