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.
出处
《光通信技术》
CSCD
北大核心
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)
