摘要
为提高光频梳带宽和谱线平坦度,设计了一种基于偏振复用和电吸收调制(EAM)技术的光频梳产生方案。通过调整EAM参数产生除中心载波外的高平坦度光频梳,再结合偏振复用技术优化中心载波峰值功率,使得光频梳带宽整体提升一倍。文中讨论了相关参数对光频梳平坦度的影响,利用Optisystem软件搭建了基于该方案的微波频率可调载波重用全双工光载无线系统(RoF)。研究结果表明,在下行链路中当误码率为10时,传输10 km与背靠背传输相比功率代价仅为0.42 dB。
To improve the optical frequency comb bandwidth and spectral flatness,an optical frequency comb generation scheme is designed based on polarization multiplexing technology and electric absorption modulator(EAM).By adjusting EAM parameters,a high flatness optical frequency comb is generated except the central carrier,and the peak power of central carrier is optimized to double the overall bandwidth of optical frequency comb using polarization multiplexing technology.The influence of relevant parameters on the flatness of optical frequency comb is discussed,and a frequency tunable and carrier reuse full-duplex radio over fiber(RoF)system based on this scheme is built by using Optisystem software.The results show that the power penalty of 10 km transmission is only 0.42 dB compared with back-to-back transmission at R=10in the downlink.
作者
史源平
王现彬
马彦恒
SHI Yuan-ping;WANG Xian-bin;MA Yan-heng(Army Engineering University,Shijiazhuang 050003,China;Mechanical and Electrical College,Shijiazhuang University,Shijiazhuang 050003,China)
出处
《微波学报》
CSCD
北大核心
2022年第4期1-6,共6页
Journal of Microwaves
基金
教育部产学合作协同育人项目(202002288020)
河北省重点研发计划(21327213D)。
关键词
光频梳
偏振复用
平坦度
光载无线通信
微波频率调谐
optical frequency comb
polarization multiplexing
flatness
radio over fiber
microwave frequency tuning
