本文選題：集成光學 + 慢光　； 參考：《北方工業(yè)大學》2017年碩士論文

【摘要】：全光網絡是未來通信技術發(fā)展的趨勢,而光緩存是實現全光通信的關鍵技術,光子晶體具有結構微小、設計靈活、常溫運行、光頻率可控等特點在實現慢光技術方面有著顯著的優(yōu)勢。近年來對傳統(tǒng)光子晶體的研究已經日趨成熟,為了在保持較好的慢光特性的同時,進一步降低慢光群速度,新型光子晶體結構逐漸成為研究的熱點。本文以光子晶體慢光為課題,研究設計了混合結構光子晶體,對光子晶體的慢光特性以及在光緩存方面的應用展開了深入的研究。首先,本文對光子晶體的發(fā)展歷史和國內外的研究狀況進行了回顧和總結,并且對光子晶體的概念、基本特性、實際應用以及制備方法進行了闡述。為后文提供了理論基礎。其次,介紹了慢光的實現原理和生成技術。當分析研究光子晶體慢光的數值方法時,重點介紹了平面波展開法和時域有限差分方法,對于完整二維光子晶體結構,給出兩種求解能帶分布方法的詳細過程。在完整結構光子晶體中引入缺陷,形成線缺陷光波導和耦合腔波導結構,分析了光子晶體結構參數對慢光特性的影響。最后以三角晶格圓形介質柱光子晶體結構為基礎,使用圓形散射元和橢圓形散射元進行周期性排列,采用平面波展開法對所設計的耦合腔波導進行仿真分析。結果表明,調整缺陷行橢圓形散射元長軸和短軸的參數有利于慢光性能的優(yōu)化。研究發(fā)現,通過改變微腔周圍第一排兩種散射元的面積比,能夠在保持低色散的同時進一步降低導模的群速度。將所設計的耦合腔應用于光緩存中,分析了它的緩存能力。
[Abstract]:All-optical network is the development trend of communication technology in the future, and optical buffer is the key technology to realize all-optical communication. Photonic crystal has small structure, flexible design and operation at room temperature. The characteristics of controllable optical frequency have significant advantages in the realization of slow light technology. In recent years, the research of traditional photonic crystals has become more and more mature. In order to keep good slow light characteristics and further reduce the slow light group velocity, the new photonic crystal structure has gradually become a hot topic. In this paper, the slow light of photonic crystal is studied and designed. The slow light characteristics of photonic crystal and its application in optical buffer are studied deeply. Firstly, the development history of photonic crystals and the research situation at home and abroad are reviewed and summarized, and the concept, basic characteristics, practical application and preparation methods of photonic crystals are described. It provides a theoretical basis for the following articles. Secondly, the realization principle and generation technology of slow light are introduced. When the numerical method of slow light in photonic crystal is analyzed, the plane wave expansion method and the finite-difference time-domain method are introduced. For the complete two-dimensional photonic crystal structure, the detailed process of solving the energy band distribution method is given. The defects are introduced into the complete photonic crystal to form the linear defect optical waveguide and the coupling cavity waveguide structure. The influence of the photonic crystal structure parameters on the slow light characteristics is analyzed. Finally, based on the photonic crystal structure of circular dielectric cylinder with triangular lattice, the circular scattering elements and elliptical scattering elements are arranged periodically, and the coupled cavity waveguide is simulated by plane wave expansion method. The results show that adjusting the parameters of the long axis and short axis of the elliptical scattering elements is beneficial to the optimization of the slow light performance. It is found that by changing the area ratio of the first row of scattering elements around the microcavity, the group velocity of the guided modes can be further reduced while maintaining low dispersion. The designed coupling cavity is applied to optical buffer, and its cache ability is analyzed.
【學位授予單位】：北方工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN929.1;O734

【參考文獻】

相關期刊論文 前10條

1 孟佳意;縣澤宇;李昕;張德權;;光子晶體纖維的制備及應用[J];材料導報;2017年05期

2 侯覺;李明珠;宋延林;;光子晶體傳感器研究進展[J];中國科學:化學;2016年10期

3 孟子暉;張連超;邱麗莉;薛敏;徐志斌;;基于光子晶體技術的紅外隱身材料研究進展[J];兵工學報;2016年08期

4 林密;邱文標;郗翔;歐陽征標;;基于二維光子晶體的偏振選擇TE/TM波功率分配器[J];光學學報;2016年12期

5 宋明麗;王小平;王麗軍;陳海將;廉吉慶;柯小龍;寧仁敏;;光子晶體制備及其應用研究進展[J];材料導報;2016年07期

6 毛強明;李長紅;夏錚;;矩形孔光子晶體波導慢光特性[J];光子學報;2016年02期

7 牛凱坤;王麗華;黃志祥;吳博;況曉靜;吳先良;;三角晶格有耗色散光子晶體的能帶結構分析[J];光子學報;2016年03期

8 鳳蘭;;基于有限元法的光子晶體理論[J];內蒙古石油化工;2015年20期

9 萬勇;韓文娟;賈明輝;云茂金;郭月;孫蕾;;圓弓形散射元構建的耦合波導的慢光特性研究[J];光學學報;2015年03期

10 郭月;張志云;喬金亮;郭尚坤;萬勇;;月牙形散射元構建的二維硅基光子晶體波導的慢光效應[J];青島大學學報(自然科學版);2015年01期

，

本文編號：1832561