光子晶体光纤及其可调谐脉冲产生的研究-光学工程专业论文.docxVIP

万方数据 万方数据 摘 要 1992 年，St. J. Russell 等人提出了光子晶体光纤的新型概念，使得在全球范 围内引领了对光子晶体光纤理论与实际应用方面深入研究的热潮。在光纤中引入 光子晶体结构制作产生新型的光纤，即称之为光子晶体光纤。它具有普通光纤所 无法具有的优越光学特性，从而使得它所具有广泛的应用领域。本论文利用 Rsoft 仿真软件模拟光子晶体光纤的导光特性及与结构参数之间的关系，具有指导意 义。 在光在晶体概念上引出光子晶体光纤，阐述了光子晶体光纤的优良特性及两 种类型的光子晶体光纤，它们的导光原理，特点及应用。阐述了分析方法，选用 平面波的展开方法，模拟分析 PBG-PCF、TIR-PCF 的能带结构，并分析光在其 中的传播特性，并在此基础之上设计增大有效模场面积的光子晶体光纤，使其具 有优良“不截止单模”特性。 在光子晶体光纤中模拟光孤子在光子晶体光纤中传输，得到了基阶和高阶光 孤子的传输特性，对孤子间的相互作用进行分析，讨论三阶色散对高阶孤子相互 作用的影响及自陡峭效应和自频移效应对二阶孤子传输的影响。模拟讨论三阶色 散、自频移效应与二阶孤子传输时的情况，利用数值模拟讨论了光孤子机制产生 可调谐脉冲。 关键字：光子晶体；平面波展开法；光孤子；高阶非线性薛定谔方程；孤子效应 ABSTRACT In 1992, St. J. Russell, who proposed the new concept of the photonic crystal fiber, making the lead in the worldwide in-depth study of the photonic crystal fiber theory and practical application of the boom. The introduction of the photonic crystal structure of production to new fiber, called photonic crystal fiber in the fiber. It has the ordinary fiber has superior optical properties, which makes it has a wide range of applications. In this thesis, the use of the Rsoft simulation software simulation of photonic crystal fiber light guide characteristics and structural parameters of the relationship between, and instructive. In the light in the crystal concept leads to a photonic crystal fiber, described the fine features of the photonic crystal fiber and two types of photonic crystal fiber light guide principle, characteristics and applications. Elaborate analysis, the choice of plane wave expansion method, the simulation analysis of PBG-PCF, the TIR-PCF band structure, and analyze the light in which the propagation characteristics and design on this basis to increase the effective mode area photonic crystal fiber, it has an excellent single mode feature. Simulation of optical solitons in photonic crystal fibers, photonic crystal fiber transmission, base band and the high-end optical solitons and analyze the interaction between the soliton to discuss the impact of third-order dispersion on the high order sol