MLSE-assisted decision feedback equalizer for error-propagation suppression in high-speed IM-DD transmission systems

作     者：周家豪 张静 赵雪 王芮 李劲江 胡少华 张倩武 杨奇 许渤 邱昆 Jiahao Zhou;Jing Zhang;Xue Zhao;Rui Wang;Jinjiang Li;Shaohua Hu;Qianwu Zhang;Qi Yang;Bo Xu;Kun Qiu

作者机构：Key Laboratory of Optical Fiber Sensing and CommunicationUniversity of Electronic Science and Technology of ChinaChengdu 611731China Key Laboratory of Specialty Fiber Optics and Optical Access NetworksShanghai UniversityShanghai 200444China School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhan 430074China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2024年第22卷第5期

页      面：36-40页

核心收录：

学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：This work was supported by the National Natural Science Foundation of China(NSFC)(Nos.62301128,61871082,and 62111530150) the Open Fund of IPOC(BUPT)(No.IPOC2020A011) the STCSM(No.SKLSFO2021-01) the Fundamental Research Funds for the Central Universities(Nos.ZYGX2020ZB043 and ZYGX2019J008) 

主　　题：intensity modulation direct detection sliding-block decision feedback equalizer error propagation maximum likelihood sequence estimation out-of-range detector 

摘      要：We propose a trellis-compressed maximum likelihood sequence estimation(TC-MLSE)-assisted sliding-block decision feedback equalizer(DFE)to suppress the error propagation resulting from the DFE in high-speed *** use an out-ofrange detector to detect the end of burst errors from the DFE and activate the optional TC-MLSE to correct burst *** conduct experiments to transmit a 201-Gbit/s PAM-8 *** results show that the proposed method achieves a bit error rate of 3.65×10^(-3),which is close to that of *** optional MLSE is only activated when needed and processes 11.4%of the total ***,the proposed method compresses the maximum length of burst errors from 19 to 5.