基于非线性光学环镜中SOA的XPM效应生成UWB信号的研究  

Study on the Generation of Ultra-wideband Signals Based on SOA-XPM in a Nonlinear Optical Loop Mirror

作　　者：张震[1] 陈新桥[1] 王瑞东[1] 段中航[1] 陈翠竹[1] 

机构地区：[1]中国传媒大学信息工程学院,北京100024

出　　处：《半导体光电》2013年第6期1032-1035,共4页Semiconductor Optoelectronics

摘　　要：利用非线性光学环镜(NOLM),提出了一种基于半导体光放大器(SOA)的交叉相位调制(XPM)效应生成超宽带(UWB)信号的方法,设计了系统结构,并进行了仿真实验,得到了中心频率约为6.7GHz、相对带宽约为161%的UWB信号,该信号符合美国联邦通信委员会(FCC)标准,从而验证了该方法的可行性。另外,所生成的UWB信号的中心频率及带宽还具有可调性。It was proposed a method to generate UWB signals utilizing the cross-phase modulation（XPM）of semiconductor optical amplifier（SOA）in a nonlinear optical loop mirror（NOLM）.The simulation experiments based on the proposed method were carried out.UWB signals which meet the criterion of the U.S.Federal Communications Commission（FCC）were obtained with a central frequency of 6.7GHz and a relative bandwidth of 161%.The simulation result verifies the feasibility of the proposed method.In addition,the central frequency and bandwidth of the UWB spectrum are variable.

关 键 词：超宽带信号 超宽带信号光纤传输 非线性光学环镜 半导体光放大器 交叉相位调制 

分 类 号：TN929.1[电子电信—通信与信息系统]