【作者】 郑毅；

【导师】 朱大庆；

【作者基本信息】 华中科技大学 ， 物理电子学， 2004， 硕士

【摘要】 光开关是光网络中实现光路的通断和切换的部件,主要用来实现在光网络中的路由选择、波长选择、光的交叉连接以及自愈保护等。光开关的驱动与控制系统则是光开关中的关键部件,其性能直接决定了光开关能否按照光网络的要求正常工作。本文在分析了聚合物热光光开关工作特点以及集成光开关器件的工作状态矩阵的基础上,设计了一种新的简洁可靠的聚合物热光光开关器件驱动与控制系统,能有效的提高光开关器件的工作效率。本文首先介绍了光开关驱动与控制系统的重要性,概述了国内外的最新进展,分析比较了不同光开关驱动与控制系统的性能和优缺点,在此基础上提出了一种新型的,基于单片机和CPLD器件的聚合物8x8热光光开关集成芯片的驱动与控制系统。其次,根据光开关芯片对驱动与控制系统的要求,本文对该系统的各个组成单元的具体设计过程进行了介绍。对电路各个组成单元的功能的分配、具体电路参数的确定、器件型号的选择以及实际电路的制作进行了描述,对系统各个组成单元进行了设计、装配和调试,对系统的各个单元的实际工作性能进行了必要的检测,并在此基础上对整个系统的性能参数进行了测试和分析。实验表明,该系统响应时间为ms量级,具有响应速度快,器件少,结构紧凑,装配调试简单等优点,完全能够满足聚合物热光光开关芯片对驱动与控制系统的要求。更多还原

【Abstract】 Optical switch is a component that can switch or make on/off light way in the optical communication networks. It is used to perform routing selection, wavelength selection, optical cross connection and self-healing protection in optical networks. The control and driving circuits of the optical switch is one of the key parts of the optical switch device. Based on the analysis of the characteristic of the polymer thermo-optic switch and the state table of the thermo-optic switch matrix, a new type of the control and driving circuits which enhanced the efficiency of the matrix was designed in this thesis.The important applications of the control and driving circuits of the optical switch are introduced, a general overview of the latest progress is present, and the performances, advantages and disadvantages of different control and driving circuits are analyzed and compared, and a new type of the control and driving circuits which based on the single chip and CPLD was designed.According to the request of the optical switch, the design of the units of the circuits and the assignment of the function of the units were introduced, the component parameters of the circuits were designed, the selection of the components and the produce of the circuits were described. The units were designed and the circuits was assembled and tested. The parameters of the units of the circuits were tested and analyzed.The experiments show that the response speed of the circuits was in the range of microsecond order, which indicated that the circuits grants the features of fast response speed, fewer components, high compactness, and easiness of produce and assembly and the circuits was up to the mustard.更多还原