孔状微环波导模式特性的研究
发布时间：2018-10-22 14:34
【摘要】：随着光纤通信技术的快速发展,光通信网络的需求也在不断的提高,微环谐振器作为光纤通讯的重要部件之一,它的理论研究具有极其重要的必要性。由于微环谐振器的尺寸小、结构简单、易于制作、便于集成等优点,可以通过控制波导与微环谐振腔之间的耦合,微环与微环之间的耦合,制备许多的光学器件,如滤波器、波分复用器、光开关等。而具有周期性图案的微环谐振器与传统的微环谐振器相比,它具有更好的分散控制和非均匀的自由光谱范围。本论文采用时域耦合模理论,研究了周期性孔状微环谐振器与直波导之间的耦合特性,讨论了此耦合系统的分裂性质和透过率特性。在把孔状谐振腔作为共振耦合波导(CROW)的前提下,首先建立波导与微环谐振器中两个谐振腔相互耦合的理论模型,讨论奇数个和偶数个谐振腔时的分裂和传输性能,并利用时域有限差分法(FDTD)对所建立的数学模型进行模拟,数值模拟结果与理论模型相一致;最后,建立波导与微环谐振器中三个谐振腔相互耦合的理论模型,也讨论在这种结构下,谐振腔个数为奇数和偶数时的分裂与传输性能,FDTD模拟验证了理论研究所得到的结论。本文的研究结果为孔状周期性微环谐振腔在光学信息处理领域和光通信领域中的光子学器件设计提供了一定的理论参考和借鉴。
[Abstract]:With the rapid development of optical fiber communication technology, the demand of optical communication network is also increasing. As one of the important components of optical fiber communication, it is necessary to study the theory of microring resonator. Because of its small size, simple structure, easy fabrication and easy integration, many optical devices, such as filters, can be fabricated by controlling the coupling between the waveguide and the resonator and the coupling between the microring and the microring. Wavelength Division Multiplexer, Optical switch, etc. Compared with the traditional microring resonator, the microring resonator with periodic pattern has better dispersion control and non-uniform free spectrum range. In this paper, the coupling characteristics between the periodic hole-shaped microring resonator and the straight waveguide are studied by using the time-domain coupled mode theory, and the splitting properties and transmittance characteristics of the coupling system are discussed. On the premise of using the hole-shaped resonator as the resonant coupling waveguide (CROW), the theoretical model of the coupling between the two resonators in the waveguide and the microring resonator is established, and the splitting and transmission performance of the odd-and even-number resonators are discussed. The numerical simulation results are in agreement with the theoretical model. Finally, the theoretical model of the three resonators in the waveguide and microring resonator is established. The splitting and transmission performance of the resonator with odd and even number is also discussed in this structure. The FDTD simulation verifies the conclusion of the theoretical study. The results of this paper provide a theoretical reference for the design of photonics devices in the field of optical information processing and optical communication.
【学位授予单位】：长春理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.11;TN256
本文编号：2287437
[Abstract]:With the rapid development of optical fiber communication technology, the demand of optical communication network is also increasing. As one of the important components of optical fiber communication, it is necessary to study the theory of microring resonator. Because of its small size, simple structure, easy fabrication and easy integration, many optical devices, such as filters, can be fabricated by controlling the coupling between the waveguide and the resonator and the coupling between the microring and the microring. Wavelength Division Multiplexer, Optical switch, etc. Compared with the traditional microring resonator, the microring resonator with periodic pattern has better dispersion control and non-uniform free spectrum range. In this paper, the coupling characteristics between the periodic hole-shaped microring resonator and the straight waveguide are studied by using the time-domain coupled mode theory, and the splitting properties and transmittance characteristics of the coupling system are discussed. On the premise of using the hole-shaped resonator as the resonant coupling waveguide (CROW), the theoretical model of the coupling between the two resonators in the waveguide and the microring resonator is established, and the splitting and transmission performance of the odd-and even-number resonators are discussed. The numerical simulation results are in agreement with the theoretical model. Finally, the theoretical model of the three resonators in the waveguide and microring resonator is established. The splitting and transmission performance of the resonator with odd and even number is also discussed in this structure. The FDTD simulation verifies the conclusion of the theoretical study. The results of this paper provide a theoretical reference for the design of photonics devices in the field of optical information processing and optical communication.
【学位授予单位】：长春理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.11;TN256
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