Twin-SSB signal reception without optical SSB filters based on self-coherent detection  

作　　者：ZHANG Xiaoling 

机构地区：[1]Key Laboratory of Aviation Electronic Information Systems,Southwest China Institute of Electronic Technology,Chengdu,611731,China

出　　处：《Optoelectronics Letters》2024年第10期584-591,共8页光电子快报（英文版）

基　　金：supported by the Southwest Electronic Technology Research Institute Technology Innovation Fund Project(No.H19015)。

摘　　要：Dater center interconnection has stimulated the development of short-reach optical communication transmission.To increase the capacity of the single sideband(SSB)system with direct-detection(DD),the twin-SSB system can double the system capacity without an extra optical modulator.Recently,the Stokes vector receiver(SVR)bridges the coherent detection and DD.A carrier can be sent along with the signal so that the SVR can utilize the reference carrier to conduct self-coherent detection and realize a linear complex optical detection,which is similar to the coherent receiver.In this paper,we propose a twin-SSB reception without optical SSB filters based on self-coherent detection.The proposed scheme greatly reduces the implementation complexity and has higher spectral efficiency(SE)compared with the traditional twin-SSB signal detection where two narrow-band optical filters and guard band are used for SSB signal extracting and inter crosstalk suppression.Meanwhile,the proposed twin-SSB signal detection with self-coherent detection also helps to relax the receiver digital signal processing(DSP),since the self-coherent detection reduces the inter crosstalk between the twin-SSB.The twin-SSB reception with self-coherent detection scheme makes it suitable for future high-speed short and medium-reach applications,such as the data center interconnect and metro area network.

关 键 词：FILTERS SIGNAL OPTICAL 

分 类 号：TN713[电子电信—电路与系统]