利用单个半导体光放大器实现非反转归零码的可重构全光逻辑门  

Reconfigurable All-Optical Logic Gates with Not-Inverted Data Technique by Using Single Semiconductor Optical Amplifier

作　　者：韩丙辰[1,2] 于晋龙[1] 张立台[1] 王文睿[1] 江阳[1] 张爱旭[1] 杨恩泽[1] 

机构地区：[1]天津大学电子信息工程学院,光电信息技术科学教育部重点实验室,天津300072 [2]山西大同大学物理与电子科学学院,山西大同037009

出　　处：《中国激光》2009年第9期2367-2371,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金重点项目(60736035);国家自然科学基金(60572013);国家863计划(2007AA012272);天津市自然科学基金(06YFJMJC01400);教育部新世纪人才计划资助项目

摘　　要：提出了一种新型非反转归零(RZ)码的可重构全光逻辑门方案。该方案基于单个半导体光放大器(SOA)和可调谐光带通滤波器(TOBPF)。利用SOA的四波混频效应和交叉增益调别(XGM)效应,实现了RZ码信号的多种功能逻辑运算。在不改变实验装置的情况下,通过调节带通滤波器中心波长和信号光功率,可以在不同逻辑功能之间进行切换。实验实现了10 Gb/s全光信号问的"与","非","或非","同或","·B","A·"等基本逻辑运算。与用连续光作为探测光不同的是,本方案采用了时钟信号作为探测光,这样各个逻辑门的输出均为非反转RZ码,有利于不同逻辑门的进一步组合。A reconfigurable all-optical logic gates with not-inverted data technique is demonstrated by using a single semiconductor optical amplifier （SOA） and a tunable optical band-pass filter （TOBPF）. Based on cross-gain modulation （XGM） and four-wave mixing （FWM） in the SOA, multiple Boolean calculation of the return-to-zero signal is realized, and different logical functions are switched by adjusting band-pass filter center wavelength and optical signal power. In the experiment, all-optical multiple logic gates of AND, NOT, NOR, NXOR,A·B, and A·B functions at 10 Gb/s are demonstrated without changing the experimental setup. In order to obtain not-inverted RZ data, the clock signal is used for the probe signal which is benefit to combining the basic logics to complicated logic gates.

关 键 词：光通信 全光逻辑门 半导体光放大器 四波混频 交叉增益调制 

分 类 号：TN929.11[电子电信—通信与信息系统]