基于QD-SOA-XPM全光逻辑或门的研究  

Research of All-optical Logic or Gate based on QD-SOA-XPM

作　　者：韦志禄 王海龙[1] 王兆翔[1] 杨文华[1] WEI Zhi-lu WANG Hai-long WANG Zhao-xiang YANG Wen-hua(Qufu Normal University, Qufu Shandong 273165, China)

机构地区：[1]曲阜师范大学,山东曲阜273165

出　　处：《通信技术》2017年第4期630-635,共6页Communications Technology

基　　金：山东省自然科学基金(No.ZR2014FM011);信息功能材料国家重点实验开放课题(No.SKL201307)~~

摘　　要：基于量子点半导体光放大器的交叉相位调制效应(QD-SOA-XPM),利用马赫-曾德尔干涉仪(MZI)模拟,实现了全光逻辑或门功能。选取Q因子和消光比作为衡量逻辑门器件性能的参数,仿真分析了注入电流、τ_(w2)、泵浦光功率、脉冲宽度、最大模式增益及有源区长度对Q因子和消光比的影响。仿真结果表明,当增大注入电流、减小τ_(w2)与最大模式增益时,都可以提高Q因子;当增大泵浦光功率、脉冲宽度和有源区长度时,Q因子和消光比的变化趋势相反。因此,在选取输入泵浦光功率、脉冲宽度与有源区长度时,要兼顾Q因子和消光比。Based on the cross phase modulation of Quantum Dot Semiconductor Optical Amplifier （QD- SOA-XPM） and Mach Zehnder Interferometer （MZI） simulation, All-optical Logic or Gate function is realized. Q factor and extinction ratio as selection of the parameters to the performance of a Logic Gate,. the effects Of inject current,τw2, pump power, pulse width, gmax and the length of active region are simulated and analyzed. The simulation results indicate that increasing the inject current, reducing τw2 and gmax, the Q factor will increase; while increasing the pump power, the pulse width and the length of active region, he Q factor and extinction ratio will decrease. Therefore, the Q factor and extinction ratio should be taken into account in the selection of the pump power, the pulse width and the length of active region.

关 键 词：量子点半导体光放大器 马赫-曾德尔干涉仪 全光逻辑或门 Q因子 消光比 

分 类 号：TN929.1[电子电信—通信与信息系统]