基于类超对称光学结构的模分复用器件研究

发布时间：2018-04-28 08:47

本文选题：模分复用 + 类超对称光学结构　；参考：《宁波大学》2017年硕士论文

【摘要】：进入21世纪以后,虽然单模光纤传输系统的通信容量已经得到了极大幅度的提升,但依旧不能满足人们对容量上限的需求。在科研人员的不懈努力下,发现了一种新型的传输方式—模分复用传输系统。此项技术具有能够大幅度扩大传输容量的潜力,成为当前光纤通信领域内研究的热点课题。模分复用传输系统的特点是以不同的模式作为信息的载体,将少模光纤作为传输的链路,实现了一种多输入多输出的传输模型。其中如何实现不同模式的高效率转换的问题是模分复用技术得到广泛利用的重要基础,但是在实际的生产运用中,模分复用系统的传输距离受了信号缺失与干扰的严重影响。据此,本文提出了一种新的传输模型来解决这些问题。本文的主要工作和创新点具体包括以下几个方面:首先介绍了模分复用系统的研究背景以及国内外的研究现状,并且对光纤传输系统进行了详细阐述。之后我们详细介绍了超对称光学结构的形貌和特性,并在此基础上引入了一个新型的光学结构,类超对称光学结构,展示了类超对称光学结构中的耦合情况。接下来我们还利用了一种新型的三芯波导来实现类超对称传输系统的单方向耦合与解调,最终完成了类超对称模分复用系统整个过程高效快速的模式转换。
[Abstract]:In the 21st century, although the communication capacity of single-mode optical fiber transmission system has been greatly improved, it still can not meet the demand of the upper capacity. With the unremitting efforts of researchers, a new transmission mode, module division multiplexing transmission system, has been found. This technology has the potential to greatly expand the transmission capacity, and has become a hot topic in the field of optical fiber communication. The characteristic of mode division multiplexing transmission system is to take different modes as the carrier of information and take the small mode optical fiber as the transmission link to realize a multi-input and multi-output transmission model. The problem of how to realize the efficient conversion of different modes is an important basis for the widespread use of module division multiplexing technology. However, in the practical application, the transmission distance of module division multiplexing system is seriously affected by the lack of signal and interference. Therefore, a new transmission model is proposed to solve these problems. The main work and innovations of this paper include the following aspects: firstly, the research background of module division multiplexing system and the research status at home and abroad are introduced, and the optical fiber transmission system is described in detail. Then we introduce the morphology and characteristics of the supersymmetric optical structure in detail, and introduce a new type of optical structure, which is similar to the supersymmetric optical structure, which shows the coupling of the supersymmetric optical structure. Then we use a new kind of three-core waveguide to realize the unidirectional coupling and demodulation of the supersymmetric transmission system, and finally complete the mode conversion of the whole process of the supersymmetric mode division multiplexing system.
【学位授予单位】：宁波大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.11

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