A reliable sunlight communication system

被引：0
|
作者：
郭海超 [1 ,2 ,3 ]
单涛 [1 ]
李立 [3 ]
张立 [3 ]
李小军 [3 ]
高寒 [4 ]
机构：
[1] School of Information and Electronics, Beijing Institute of Technology
[2] National Key Laboratory of Science and Technology on Space Microwave
[3] China Academy of Space Technology (Xi'an)
[4] Aerospace Information Research Institute, Chinese Academy of Sciences
来源：
ChineseOpticsLetters | 2019年 / 17卷 / 12期
关键词：
red; Sr; A reliable sunlight communication system;
D O I：
暂无
中图分类号：
TN929.1 [光波通信、激光通信];
学科分类号：
0803 ;
摘要：
A sunlight communication system is proposed that uses Sr2Si5N8:Eu2+phosphors to concentrate sunlight signals in strong background light noise; thus, a wide spectrum sunlight communication system is converted into a narrow spectrum one. A communication method is proposed to enable compression to the dark line H-α(656.28 nm) spectrum. A 50% solar energy conversion efficiency is achieved with a 0.3 μs code delay, a0.2 μs code rise time(20%–80%), and a 96% optical transmittance. Experimental results show that phosphors enhance the sunlight intensity 1.5 times with the same distance. This method has immense potential in future long-distance sunlight communication.
引用
收藏
页码：25 / 30
页数：6
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