Low-complexity and phase noise tolerant carrier phase estimation for dual-polarization 16-QAM systems

Yuliang Gao, Pak Tao Lau, Shuangyi Yan, Chao Lu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

74 Citations (Scopus)


A low-complexity feed-forward carrier phase estimation (CPE) technique is presented for dual-polarization (DP)-16-QAM transmission systems. By combining QPSK partitioning, maximum likelihood (ML) detection and phase offset estimation between signals in different polarizations, simulation and experimental results for a 200Gb/s DP-16-QAM system demonstrate similar linewidth tolerance to the best feedforward CPE reported to date while the computational complexity is at least three times lower compared with other simplified feed-forward CPE techniques.
Original languageEnglish
Pages (from-to)21717-21729
Number of pages13
JournalOptics Express
Issue number22
Publication statusPublished - 24 Oct 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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