基于大容量数据的PCF的研究  

A Study of PCF Based on Large Capacity Data

作　　者：李晶[1] 毕利 

机构地区：[1]广东轻工职业技术学院实验实训管理中心,广州510300 [2]宁夏大学信息工程学院,银川750000

出　　处：《实验室研究与探索》2017年第11期114-117,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(61662058);广东省高职院校实验技术管理队伍建设的现状与策略研究(GDJ2014028)

摘　　要：目前大数据发展需要对信息传输能力要求越来越高,而在光纤通信中可见光范围的光子禁带光子晶体依然没有很好的解决,基于取样光纤光栅(SFG)、传输矩阵理论研制了新型光子晶体,采用两种不同的介电常数材料进行交替排列的周期性结构,通过SFG传输理论得到设计结构反射系数、透射系数。模拟分析和测试实验都得出以下一致的结果:设计的光子晶体结构出现多个反射峰,光栅长度的增加导致反射率明显增大,反射峰数目随着光栅长度的增加而变多,反射峰的间隔不发生变化;当增加调制深度时,带宽明显增加;反射谱随着折射率调制量增加,使得反射峰数目增加,以及反射率的显著增加,带宽明显变宽。研究结果对于光子晶体的推广应用具有明显的理论和实际意义。At present the visible light range of photonic crystal bandgap is not well solved, based on the sampled fiber bragg grating （SFG） and the transfer matrix theory, a new type of photonic crystal was designed by alternately periodically arranging two materials with different dielectric constants. Reflection coefficient and transmission coefficient of the structure were obtained by SFG transmission theory. Simulation analysis and test results yielded consistent results. The conclusion is as follows： the photonic crystal structure holds multiple reflection peaks, the number of reflection peaks and reflectance increase obviously by the increase of grating length, but the interval of reflection peak does not vary. When the modulation depth increases, bandwidth also increases obviously. Reflection spectrum increases with the amount of refraction index modulation, and reflection peak number also increases, as well as the wideness of bandwidth. The research results hohls theoretical and practical significance for application of photonic crystals.

关 键 词：光子晶体 取样光纤光栅 传输矩阵理论 反射峰 

分 类 号：TP32[自动化与计算机技术—计算机系统结构]