高双折射零色散双芯光子晶体光纤的传输特性研究
发布时间：2019-04-22 09:57
【摘要】：自1996年第一根光子晶体光纤诞生以来,光子晶体光纤以其优越的性能引起了人们越来越多研究兴趣。高双折射和零色散光纤在通信、传感等领域都有着广泛的应用,与传统光纤分束器相比,基于光子晶体光纤的偏振分束器能够提供更好的消光比和耦合长度。本文设计了两种具有高双折射和零色散光子晶体光纤偏振分束器,用有限元法对所设计的光子晶体光纤的传输特性进行了系统的分析研究。论文的主要内容如下:首先,结合光子晶体光纤的概念和发展现状,分析总结了光子晶体光纤在通信技术、激光器、滤波器、传感器等方面的应用,对光子晶体光纤选择不同基质材料时的优缺点进行了比较。其次,以麦克斯韦方程为基础,对光子晶体光纤的几个典型参量进行了介绍并对光纤的耦合模方程进行了推导,分析了对光子晶体光纤模式特性进行数值模拟时常用方法的优缺点。最后,设计了两种结构简单、在通信波段同时具有高双折射和零色散值、具有很好的偏振分束性能的光子晶体光纤:一种是以石英为背景材料,空气孔呈三角形排列,该光纤在波长1310nm处具有良好的双折射、色散和分束特性;另一种是以碲玻璃为背景材料,空气孔呈矩形排列,在波长1550nm处具有良好的双折射值、色散值和偏振分束特性。本文设计的光子晶体光纤结构简单,在多个方面同时具有良好的性能,可以应用在通信系统、保偏系统以及激光器、偏振分束器等光学器件中,将会具有很好的应用前景。
[Abstract]:Since the birth of the first photonic crystal fiber (PCF) in 1996, photonic crystal fiber (PCF) has attracted more and more attention due to its superior performance. High birefringence and zero dispersion fiber are widely used in communication, sensing and other fields. Compared with traditional fiber splitter, polarization splitter based on photonic crystal fiber can provide better extinction ratio and coupling length. In this paper, two kinds of polarization beam splitters with high birefringence and zero dispersion photonic crystal fiber are designed. The transmission characteristics of the designed photonic crystal fiber are analyzed by finite element method. The main contents of this thesis are as follows: firstly, the application of photonic crystal fiber in communication technology, laser, filter, sensor and so on is analyzed and summarized according to the concept and development status of photonic crystal fiber. The advantages and disadvantages of photonic crystal fiber (PCF) in selecting different matrix materials are compared. Secondly, on the basis of Maxwell equation, several typical parameters of photonic crystal fiber are introduced, and the coupled mode equation of photonic crystal fiber is deduced. The advantages and disadvantages of numerical simulation of photonic crystal fiber (PCF) mode characteristics are analyzed. Finally, two kinds of photonic crystal fibers with simple structure, high birefringence and zero dispersion at the same time, and good polarization and beam splitting performance are designed. One is using quartz as the background material, and the air holes are arranged in triangles. The fiber has good birefringence, dispersion and beam splitting properties at wavelength 1310nm. The other is based on tellurium glass with rectangular air holes and good birefringence, dispersion and polarization beam splitting properties at wavelength 1550nm. The photonic crystal fiber designed in this paper has simple structure and good performance in many aspects. It can be used in communication system, polarization-maintaining system, laser, polarization beam splitter and other optical devices, and will have a good application prospect.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN253
本文编号：2462740
[Abstract]:Since the birth of the first photonic crystal fiber (PCF) in 1996, photonic crystal fiber (PCF) has attracted more and more attention due to its superior performance. High birefringence and zero dispersion fiber are widely used in communication, sensing and other fields. Compared with traditional fiber splitter, polarization splitter based on photonic crystal fiber can provide better extinction ratio and coupling length. In this paper, two kinds of polarization beam splitters with high birefringence and zero dispersion photonic crystal fiber are designed. The transmission characteristics of the designed photonic crystal fiber are analyzed by finite element method. The main contents of this thesis are as follows: firstly, the application of photonic crystal fiber in communication technology, laser, filter, sensor and so on is analyzed and summarized according to the concept and development status of photonic crystal fiber. The advantages and disadvantages of photonic crystal fiber (PCF) in selecting different matrix materials are compared. Secondly, on the basis of Maxwell equation, several typical parameters of photonic crystal fiber are introduced, and the coupled mode equation of photonic crystal fiber is deduced. The advantages and disadvantages of numerical simulation of photonic crystal fiber (PCF) mode characteristics are analyzed. Finally, two kinds of photonic crystal fibers with simple structure, high birefringence and zero dispersion at the same time, and good polarization and beam splitting performance are designed. One is using quartz as the background material, and the air holes are arranged in triangles. The fiber has good birefringence, dispersion and beam splitting properties at wavelength 1310nm. The other is based on tellurium glass with rectangular air holes and good birefringence, dispersion and polarization beam splitting properties at wavelength 1550nm. The photonic crystal fiber designed in this paper has simple structure and good performance in many aspects. It can be used in communication system, polarization-maintaining system, laser, polarization beam splitter and other optical devices, and will have a good application prospect.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN253
【参考文献】
相关期刊论文 前3条
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2 邴丕彬;李忠洋;姚建铨;陆颖;邸志刚;闫昕;;Theoretical and experimental researches on a PCF-based SPR sensor[J];Optoelectronics Letters;2012年04期
3 李曙光,刘晓东,侯蓝田;光子晶体光纤色散补偿特性的数值研究[J];物理学报;2004年06期
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