基于单模光纤耦合的无线光通信系统设计  

Design of a free space optical communication system based on single mode fiber coupling

作　　者：马拥华 蒋相 杨乾远[1] MA Yonghua;JIANG Xiang;YANG Qianyuan(The 34th Research Institute of CETC,Guilin Guangxi 541004,China)

机构地区：[1]中国电子科技集团公司第三十四研究所,广西桂林541004

出　　处：《光通信技术》2021年第8期29-32,共4页Optical Communication Technology

摘　　要：为了实现适用于近地的单模无线光设备,设计了一种单模接收无线光通信系统。提出了一种两级跟踪和孔径平滑的设计方法以抑制大气湍流及设备轻微晃动的影响。完成了900 m外场实验,实现了最大单模耦合接收效率为20%,两端接收功率跳动在6 dB以内。实验数据表明两级跟踪加权平均的方法可以抑制大气湍流及轻微晃动。最后,提出了下一步改进方向。In order to realize single mode wireless optical equipment suitable for near ground,a single mode fiber receiving free space optical communication system is designed.A design method of two-level tracking and aperture smoothing is proposed to inhibit the influence of air turbulence and equipment shaking.In this paper,the 900 m field experiment is completed,which reaches the max single mode fiber coupling receiving efficiency of 20%and the received power jitter is less than 6 dB at both ends.The experiment data show that the method of two-level tracking can suppress atmospheric turbulence and shaking.At last,the improvement direction for the future is proposed.

关 键 词：单模光纤耦合 无线光通信 两级跟踪 大气湍流 

分 类 号：TN914[电子电信—通信与信息系统]