Chinese Optics Letters, Volume. 23, Issue 1, 010605(2025)

Improved SD-FEC with multi-tap error-tracking DFE with partial unrolling in high-speed IM/DD systems

Xue Zhao, Jing Zhang, Jiahao Zhou, Chenye Wang, Zhengyu Ma, Shaohua Hu*, Bo Xu, and Kun Qiu
Author Affiliations
  • Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education), School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
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    References(19)

    [4] N. Eiselt, J. Wei, H. Griesser et al. First real-time 400G PAM-4 demonstration for inter-data center transmission over 100 km of SSMF at 1550 nm. Optical Fiber Communication Conference and Exhibition (OFC)(2016).

    [7] S. Hu, J. Zhang, J. Tang et al. 112-Gb/s PAM-4 IM/DD optical transmission over 100-km single mode fiber with linear equalizer. Optical Fiber Communications Conference and Exhibition (OFC)(2022).

    [11] T. Sugihara, T. Yoshida, T. Mizuochi. Collaborative signal processing with FEC in digital coherent systems. Optical Fiber Communication Conference Exhibition (OFC)(2013).

    [14] X. Liu, A. Shen, N. Cheng et al. Performance improvements in bandwidth-limited and digitally-equalized 50G-PON downstream transmission via block-interleaving over four LDPC codewords. Optical Fiber Communication Conference (OFC)(2021).

    [15] 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)(2022).

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    Xue Zhao, Jing Zhang, Jiahao Zhou, Chenye Wang, Zhengyu Ma, Shaohua Hu, Bo Xu, Kun Qiu, "Improved SD-FEC with multi-tap error-tracking DFE with partial unrolling in high-speed IM/DD systems," Chin. Opt. Lett. 23, 010605 (2025)

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Mar. 30, 2024

    Accepted: Aug. 5, 2024

    Posted: Aug. 5, 2024

    Published Online: Feb. 10, 2025

    The Author Email: Shaohua Hu (sh.hu@uestc.edu.cn)

    DOI:10.3788/COL202523.010605

    CSTR:32184.14.COL202523.010605

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