【作者】 巩长义；

【导师】 贾振红；

【作者基本信息】 新疆大学 ， 通信与信息系统， 2003， 硕士

【摘要】 随着时代的发展，对通信系统的要求越来越高，当前通信朝着高速、超高速和大容量方向发展，而光纤网络由于其有高速、容量大、抗干扰等特点，所以目前光网络的研究是一个热点。相应地，与光网络相关的通信系统中的路由、交换、控制等都得到了与电网络类似的研究。非线性定向耦合器(NLDC)是用在光网络中的光开关器件，它主要用在全光网络中，W.S.Man等研究过基态孤子在NLDC中的传输控制，便于对全光网络中数据的正确传输，由于目前研究集中在＜100fs的超短脉冲传输特性上，显然基态孤子的特点不再适用于超高速网络；Mary J.Potasek等就超短脉冲在NLDC中的自耦合做了研究，在光网络中自耦合任意性太大，不利于控制脉冲的传输。本文就＜100fs的孤子在NLDC中传输控制做了研究，用一控制脉冲来控制信号孤子的传输方向，并用MATLAB做了模拟。另外在第二部分，分析了超高速全光通信系统中的一些影响因素，并对损耗管理系统进行了模拟。更多还原

【Abstract】 Today the communication is progressing toward high speed or superhigh speed and large capacity, because the optical network has those characteristics, then it is the focus in communication field. Correspondingly, routing, switching and controlling have all been developing. Nonlinear Directional Coupler (NLDC) is a switch used in optical network. W.S.Man had studied transmission controlling with ground state soliton through NLDC, it is obviously not available to used in superhigh speed network; and Mary J.Potasek had studied the self-coupling with ultrashort solitons in NLDC, self-coupling is difficult to control the signal transmitting. I has studied the transmission controlling with ultrashort solitons(<100fs) in NLDC, similarly I use a controlling pulse to control the signal pulse, it is the intensity of controlling pulse to decide the signal change its direction or not. And I had made simulation with MATLAB. The next part of my paper, I analyzed elements which affecting the signal in superhigh optical networks, and simulated the loss-managed network.更多还原