混沌光通信与OC-48光纤通信的波分复用  

Wavelength division multiplexing of chaotic optical communication and OC-48 fiber communication

作　　者：张建忠[1] 王安帮[1] 王云才[1] 

机构地区：[1]太原理工大学理学院物理系,太原030024

出　　处：《物理学报》2009年第6期3793-3798,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60577019);山西省国际合作基金(批准号:2007081019)资助的课题~~

摘　　要：数值证实并分析了混沌激光通信与现行光通信的波分复用传输,对于100GHz的信道间隔,混沌激光通信系统实现了传输速率为1Gbit/s数字信号的保密传输,现行光通信系统实现了传输速率为2.5Gbit/s数字信号的传输.研究表明,当现行光通信中脉冲光信号的峰值功率不超过17dBm时,混沌激光通信可在传输距离80km内实现并行传输.此外,当现行光通信中脉冲光信号的峰值功率为7dBm时,系统接收到的信号质量受混沌激光通信的干扰很小,当光纤传输距离从80km增加到160km时,对应的眼图开启度从82%降到70%.Wavelength division multiplexing transmission of chaotic optical communication and current optical communication is numerically confirmed and analysed. For a 100 GHz channel span, a 1-Gbit/s digital message extraction is achieved in chaotic optical communication system and a 2.5-Gbit/s digital signal is received in current optical communication system. The results show that when the peak power of digital signal in current optical communication is less than 17 dBm, chaotic optical communication can realise parallel transmission of 80 kin. In addition, when the peak power of digital signal in current optical communication is 7 dBm, the quality of the received signal in current optical communication is hardly interfered by signals of chaotic optical communication. As the transmission distance increases from 80 km to 160 km,the opening of the corresponding eye diagram decreases from 82% to 70%.

关 键 词：混沌光通信 混沌同步 波分复用 信道串扰 

分 类 号：TN929.1[电子电信—通信与信息系统] TN929.11[电子电信—信息与通信工程]