摘要
设计了一个以波长275nm的发光二极管为光源、光电二极管为探测器的紫外光传输实验系统。首先测试了该系统在视距和非视距两种传输方式不同距离下的传输特性,然后分别测试了不同光源仰角、探测器仰角下的传输特性,并把实验结果和理论结果进行了对比。结果表明,在非视距方式下,接收功率与光源仰角成反比关系,且距离越远光源仰角对本系统传输特性的影响越小,探测器仰角在30°~60°对本系统传输特性的影响较小。本研究结果给紫外光通信系统的设计提供了一定的参考。
An ultraviolet light transmission experimental system is designed with a 275 nm light emitting diode as the light source and photodiode as the detector. Firstly, the transmission characteristics of the system under two transmission modes, line-of-sight and non-line-of-sight, at different distances are tested. Then the transmission characteristics under different light source elevation angles and detector elevation angles are tested. Finally, the experimental results with the theoretical results are compared. The results show that in the non-line-of-sight mode, the received power is inversely proportional to the elevation angle of the light source, and the farther the distance, the smaller the effect of the elevation angle of the light source on the transmission characteristics of the system. The elevation angle of the detector at 30°~60° has little effect on the transmission characteristics of the system. The results of this research provide a certain reference for the design of ultraviolet communication system.
作者
张中越
张立瑶
张鸣轩
喻鹏
姚爽
ZHANG Zhongyue;ZHANG Liyao;ZHANG Mingxuan;YU Peng;YAO Shuang(College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《光学技术》
CAS
CSCD
北大核心
2021年第3期327-333,共7页
Optical Technique
