单向和双向控制脉冲TOAD的开关窗口研究  

Research on Switch Window of TOAD with Unidirectional and Bidirectional Control Pulse

作　　者：石万军[1,2] 李唐军[1,2] 

机构地区：[1]北京交通大学全光网络与现代通信网教育部重点实验室,北京100044 [2]北京交通大学光波技术研究所,北京100044

出　　处：《光电技术应用》2013年第2期71-75,共5页Electro-Optic Technology Application

基　　金：国家863计划(2007AA01Z258);国家自然科学基金(60807003;61177012);中央高校基本科研业务费专项资金(北京交通大学2009YJS005)

摘　　要：详细研究了单控制脉冲TOAD(terahertz optical asymmetric demultiplexer)结构开关窗口的非对称缺陷及其产生机理。通过理论分析和optisystem仿真证实了双控制脉冲TOAD结构能够很好地解决单控制脉冲TOAD结构的开关窗口缺陷。仿真结果显示,双控制脉冲TOAD获得了波形对称、对比度更高的开关窗,详细解释了仿真中出现的双峰现象。Asymmetric shortcomings and production principles of structure switch window of terahertz optical asymmetric demultiplexer （TOAD） with unidirectional control pulse are researched in detail. The shortcomings are well resolved by the TOAD structure of bidirectional control pulse on the basis of theoretical analysis and optisys- tem simulation. The simulation results show that the switch windows with symmetric waveform and higher contrast are got by bidirectional control pulse TOAD. And double peak phenomena in simulation process are explained.

关 键 词：太赫兹光学非对称解时分复用器TOAD 控制脉冲 半导体放大器 

分 类 号：O432.12[机械工程—光学工程]