基于LOA-XGM全光逻辑与门的理论研究  

Study of All Optical Logic AND Gate Using LOA-based XGM

作　　者：李茜[1] 潘炜[1] 李海涛 罗斌[1] 

机构地区：[1]西南交通大学信息科学与技术学院光通信与光器件研究所,成都610031

出　　处：《固体电子学研究与进展》2009年第1期67-71,共5页Research & Progress of SSE

基　　金：国家自然科学基金(No.10174057;No.90201011);教育部科学技术研究重点项目(No.2002-105148);四川省应用基础科学研究(No.03JY029-048-1)

摘　　要：提出了基于线性光放大器(LOA)的交叉增益调制(XGM)原理来实现全光逻辑与(AND)运算的理论模型,通过Simulink模块构建,使其更好地仿真出逻辑输出结果,并且分析不同参数对与输出结果的影响。结果表明:由于LOA利用有源区两侧的分布式布拉格反射镜(DBR)对入射光的增益形成了很好的钳制,使其具有良好的线性增益特性,因而利用级联LOA实现逻辑门运算时所发生的畸变远比在SOA中小;适当地选择输入信号光的波长范围和光功率,会得到更优的逻辑与运算结果。A scheme of all-optical logic NOR gate based on cross-gain modulation and the logic operation are presented. Simulink model can be used to simulate better output results. And the influence of output results has been analyzed. Results show that the VCL of LOA, which used the DBR of two side of active layer, clamps the gain, and makes the LOA a good gain characteristic, so the distortion of all-optical logic operation of LOA is smaller than that of all-optical logic operation of SOA. Proper wavelength scope and power of the input signal have the advantages to achieve better logic operation effect.

关 键 词：线性光放大器 交叉增益调制 与门 

分 类 号：TN248.4[电子电信—物理电子学]