摘要
针对强背景光下接收信号信噪比低、星地长距离光通信中接收信号微弱等问题,进行光差分相移键控(DPSK)调制的前置放大自相干接收方案研究和空间光到单模光纤耦合关键技术分析。在Optisystem13软件平台上搭建光前置自相干接收系统实验模型,实验结果表明:加入光前置的自相干接收机的通信质量具有较好改善;当滤波器带宽为35GHz时,系统达到最佳接收状态。
In view of problem for SNR is lower to received signal under strong background,and the receiving signal power is weak in long distance ground-stars optical communication,the scheme for self coherent receiving system based on pre-amplifier of DPSK modulation has studied,the key technical analysis of space optical to single mode fiber coupling technology is completed.The experimental model of the optical pre-coherent self coherent receiving system is built on the Optisystem13 software platform.The experimental results show that the communication quality for self-coherent receiving system based on pre-amplifier is improved.Moreover,the system reaches the optimal receiving state when the filter bandwidth is 35 GHz.
作者
张慧颖
孙浩
ZHANG Huiying, SUN Hao(College of Information and Control Engineering, Jilin Institute of Chemical Technology, Jilin Jilin 132022, Chin)
出处
《光通信技术》
北大核心
2018年第5期50-53,共4页
Optical Communication Technology
基金
吉林省教育厅"十三五"科学研究规划项目资助
吉林化工学院科学技术研究项目资助
关键词
光DPSK
光前置放大
自相干接收
耦合
optical DPSK
optical pre-amplifier
modulation
self-coherent receiving
coupling
