Chinese Optics Letters, Volume. 22, Issue 5, 050604(2024)

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

Jiahao Zhou1, Jing Zhang1、*, Xue Zhao1, Rui Wang1, Jinjiang Li1, Shaohua Hu1, Qianwu Zhang2, Qi Yang3, Bo Xu1, and Kun Qiu1
Author Affiliations
  • 1Key Laboratory of Optical Fiber Sensing and Communication, University of Electronic Science and Technology of China, Chengdu 611731, China
  • 2Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200444, China
  • 3School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
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    References(19)

    [6] A. Mahadevan, Y. Lefevre, W. Lanneer et al. Impact of DFE on soft-input LDPC decoding for 50G PON. Optical Fiber Communication Conference (OFC), 1(2021).

    [12] T. Wettlin, T. Rahman, S. Calabro et al. Investigation of weighted DFE for high-rate short-reach transmission. 27th Opto-Electronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 1(2022).

    [13] K. Wu, G. Liga, J. Lee et al. DFE state-tracking demapper for soft-input FEC in 800G data center interconnects. European Conference on Optical Communication (ECOC), We3C.2(2022).

    [14] Y. Yu, Y. Che, T. Bo et al. Low-complexity, loop-unrolled decision-feedback equalizer for IM/DD system using PAM formats. Optical Fiber Communications Conference and Exhibition (OFC), Th1A.44(2021).

    [16] J. Zhou, J. Zhang, X. Zhao et al. Simplified TC-MLSE equalizer for 210-Gb/s PAM-8 signal transmission in IM/DD systems. Optical Fiber Communications Conference and Exhibition (OFC)(2022).

    [17] Y. C. Lu, H. Wang, D. Tonietto et al. DFE error propagation characteristics in real 56 Gbps PAM4 high-speed links with pre-coding and impact on the FEC performance. Proc. DesignCon, 9(2017).

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    Jiahao Zhou, Jing Zhang, Xue Zhao, Rui Wang, Jinjiang Li, Shaohua Hu, Qianwu Zhang, Qi Yang, Bo Xu, Kun Qiu, "MLSE-assisted decision feedback equalizer for error-propagation suppression in high-speed IM-DD transmission systems," Chin. Opt. Lett. 22, 050604 (2024)

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Jan. 15, 2024

    Accepted: Feb. 5, 2024

    Posted: Feb. 5, 2024

    Published Online: May. 20, 2024

    The Author Email: Jing Zhang (zhangjing1983@uestc.edu.cn)

    DOI:10.3788/COL202422.050604

    CSTR:32184.14.COL202422.050604

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