Low-resolution optical transmission using joint shaping technique of signal probability and quantization noise

Hongyu Huang; Zhenming Yu; Liang Shu; Kaixuan Sun; Feifei Yin; Kun Xu

doi:10.3788/COL202321.050602

Journals >Chinese Optics Letters >Volume 21 >Issue 5 >Page 050602 > Article

Chinese Optics Letters
Vol. 21, Issue 5, 050602 (2023)

Low-resolution optical transmission using joint shaping technique of signal probability and quantization noise

Hongyu Huang, Zhenming Yu^*, Liang Shu, Kaixuan Sun, Feifei Yin, and Kun Xu

Author Affiliations

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China

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DOI: 10.3788/COL202321.050602 Cite this Article Set citation alerts

Hongyu Huang, Zhenming Yu, Liang Shu, Kaixuan Sun, Feifei Yin, Kun Xu. Low-resolution optical transmission using joint shaping technique of signal probability and quantization noise[J]. Chinese Optics Letters, 2023, 21(5): 050602 Copy Citation Text

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Abstract

In this paper, we propose and experimentally demonstrate a joint shaping technique to improve the performance of a low-resolution transmission system for the first time, to the best of our knowledge. The joint shaping technique combines probabilistic shaping (PS) and error feedback noise shaping (EFNS). In the 40-Gbaud intensity-modulation direct-detection (IM/DD) experimental transmission system, a bit-error-rate (BER) of

3.8 \times 10^{- 3}

can be achieved easily with the joint shaping at the physical number of bits (PNOB) of 3. In the 30-Gbaud dual polarization (DP) coherent experimental transmission system, a BER below