摘要
要谈到的紫外光通讯系统是自由空间光通讯的一种.民用的自由空间光通讯用到的一般都是红外光作为传输介质.然而,在军事领域,如果要建立一个抗截获、抗干扰、安全隐密的小范围通讯系统(方圆1.5 km左右)就不能使用红外光.经过前人的不断探索和努力,发现紫外光,特别是日盲光谱波段的紫外光是一种很好的传输介质.由于空气的吸收以及在大气中的散射作用,使得紫外光有比较合适的传输距离和跨越障碍的能力.文中重点讲述的是系统的一些关键器件.
The topic of this thesis is ultraviolet communication system, one model of the Free Space Optics （FSO）. The Free Space Optics communication system for civil use regards infrared light as transmission medium. However, for military use, if we want to establish a local communication system （ about 1.5 km） with jamproof and safe, it is impossible to use infrared as transmission medium. Based on the predecessors＇research and struggle, they discovered that ultraviolet light, especially the ultraviolet light in the solar blind light spectrum is a perfect transmission medium. Because of the absorption of air and scattering process in the atmosphere it can provide a suitable transmission distance and the ability to get over obstacles. The importance of the thesis is to introduce the key devices used in the communication system.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第12期30-33,40,共5页
Journal of Chongqing University
关键词
紫外光通讯
滤光片
光电倍增管
ultraviolet communication
optical filter
photo multiplier tube
