title: Low-complexity and phase noise tolerant carrier phase estimation for dual-polarization 16-QAM systems.
abstract: 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 200 Gb/s DP-16-QAM system demonstrate similar linewidth tolerance to the best feed-forward CPE reported to date while the computational complexity is at least three times lower compared with other simplified feed-forward CPE techniques.
authors: Photonics Research Centre, Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong. ryan.yl.gao@polyu.edu.hk
authors: Yuliang
authors: Y
authors: Gao
authors: Alan Pak Tao
authors: AP
authors: Lau
authors: Shuangyi
authors: S
authors: Yan
authors: Chao
authors: C
authors: Lu