PolSK调制混沌保密光通信的实验研究  

Experimental Study on Chaos Secure Optical Communication with PolSK Modulation Technology

作　　者：刘静[1] 王陆唐[2] 巫玮佳[2] 黄肇明[2] 

机构地区：[1]上海电力学院计算机与信息工程学院,上海200090 [2]上海大学通信与信息工程学院,上海200072

出　　处：《光通信技术》2005年第9期58-60,共3页Optical Communication Technology

基　　金：上海市重点学科建设资助项目(2001-44)

摘　　要：将PolSK技术应用到混沌保密光通信中。利用半导体光放大器(SOA)构成光纤环状激光器产生偏振态混沌信号,并利用SOA的互相位调制(XPM)效应,通过信号光输入到激光器中,将传输数据动态地调制到混沌信号的偏振态上,实现数据保密通信。对PolSK混沌保密通信的基本原理进行了说明,给出了实验系统基本性能的测试结果,并进行了讨论。The PoISK modulation technology is used in the chaos secure optical communication. A SOA-based fiber ring laser as the transmitter is built to generate the chaos carrier with dynamically fluctuating states of light polarization. In this scheme, the data to be transmitted in the secure optical communication is dynamically modulated onto the state of the chaotic carrier＇s polarization through a XPM effect in the SOA induced by the input signal light.The principles of chaos secure optical communication with PoISK modulation technology are introduced and some basic performances of the experimental system are also illustrated. Meanwhile, the experimental results for chaotically transmitting with a bit rate of 630 Mbit/s and a transmission distance of 5 km are presented. The descriptions and discussions on the measurement resuits are given. Lastly, a conclusion is given.

关 键 词：PoISK调制 SOA混沌保密光通信 混沌接收 光纤环状激光器 

分 类 号：TN248[电子电信—物理电子学]