摘要
针对大气湍流效应引起的接收功率起伏问题,提出了一种基于铒离子竞争机制的光功率均衡技术。讨论了基于Gamma-Gamma分布的大气信道模型中大气湍流对自由空间光通信的影响,对不同湍流强度下的光功率均衡效果进行仿真,仿真结果表明:在中等强度湍流条件下,该技术可将接收信号光功率波动范围压缩16 dB以上。
Aiming at the fluctuation problem of received power caused by atmospheric turbulence,an optical power equalization technology based on Erbium ion competition mechanism is studied.The influence of atmospheric turbulence on free space optical communication in the atmospheric channel model based on Gamma-Gamma distribution is discussed.The optical power equalization effect under different turbulence intensity is simulated.The simulation results show that the fluctuation range of received signal optical power can be reduced by more than 16 dB under the condition of medium intensity turbulence.
作者
蔡岳丰
李晓龙
闫宝罗
刘波
刘海锋
孟森森
林炜
CAI Yuefeng;LI Xiaolong;YAN Baoluo;LIU Bo;LIU Haifeng;MENG Sensen;LIN Wei(Institute of Modern Optics,Nankai University,Tianjin 300350,China;Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology,Nankai University,Tianjin 300350,China)
出处
《光通信技术》
北大核心
2020年第9期58-62,共5页
Optical Communication Technology
基金
国家重点研发计划项目(2018YFB1802302)资助
国家自然科学基金重大科研仪器研制项目(61727815)资助
天津市高层次创新创业团队项目资助。
关键词
自由空间光通信
大气湍流
接收功率起伏
铒离子竞争机制
光功率均衡
free space optical communication
atmospheric turbulence
received power fluctuation
Erbium ion competition mechanism
optical power equalization
