Linewidth-tolerant carrier phase recovery in probabilistically shaped M-QAM systems with generalized circular harmonic expansion

Yu Xia; Qifeng Yan; Peishan Zhang; Xuezhi Hong

doi:10.1117/12.2626276

20 January 2022 Linewidth-tolerant carrier phase recovery in probabilistically shaped M-QAM systems with generalized circular harmonic expansion

Yu Xia, Qifeng Yan, Peishan Zhang, Xuezhi Hong

Author Affiliations +

Proceedings Volume 12154, 13th International Photonics and OptoElectronics Meetings (POEM 2021); 121540B (2022) https://doi.org/10.1117/12.2626276
Event: 13th International Photonics and OptoElectronics Meetings (POEM 2021), 2021, Wuhan, China

Abstract

A carrier phase recovery algorithm using generalized circular harmonic expansion is proposed for probabilistically shaped M-QAM systems. Compared with two-stage blind phase search and Kullback-Leibler divergence based algorithms, a higher laser linewidth tolerance is achieved.

Citation Download Citation

Yu Xia, Qifeng Yan, Peishan Zhang, and Xuezhi Hong "Linewidth-tolerant carrier phase recovery in probabilistically shaped M-QAM systems with generalized circular harmonic expansion", Proc. SPIE 12154, 13th International Photonics and OptoElectronics Meetings (POEM 2021), 121540B (20 January 2022); https://doi.org/10.1117/12.2626276

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