紫外光通信实验中信息高速调制方法的研究  

RESEARCH OF HIGH DATA RATE MODULATION IN UV COMMUNICATION EXPERIMENT

作　　者：常胜利[1] 尹红伟[1] 贾红辉[1] 杨俊才[1] 杨建坤[1] 

机构地区：[1]国防科技大学,长沙410073

出　　处：《大学物理实验》2006年第4期1-4,共4页Physical Experiment of College

摘　　要：本文简要介绍了紫外光通信技术的发展及其优点,同时指出该套应用标准工业低压汞灯为系统光源的通信实验存在的致命缺点———数据传输速率低。通过对低压汞灯发光机制的研究,解释了该缺点产生的根本原因,在此基础上设计并研制出一套用低压碘灯为通信光源的高速紫外光通信实验系统。系统在实验室完成了语音和数据的有效传输,传输数据时最大调制速率达100KHz。This paper introduces the advantages of UV communication firstly, and points out a vital disadvantage of UV communication experiment system, low data transmission rate, which was caused by using the low pressure mercury lamp .This disadvantage will be explained by studying the physical characteristics of low pressure mercury lamps. In this paper, a set of high data rate UV communication experiment system is designed by using a low pressure iodine lamp as transmitter. Effective transmission of voice and data has been done at the laboratory, and the maximum transmission rate of data reaches 100KHz.

关 键 词：“自陷”效应 低压碘灯 低压汞灯 紫外通信 高速 

分 类 号：O657[理学—分析化学]