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

Yuliang Gao; Alan Pak Tao Lau; Shuangyi Yan; Chao Lu

doi:10.1364/OE.19.021717

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

Opt Express. 2011 Oct 24;19(22):21717-29. doi: 10.1364/OE.19.021717.

Authors

Yuliang Gao¹, Alan Pak Tao Lau, Shuangyi Yan, Chao Lu

Affiliation

¹ Photonics Research Centre, Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong. ryan.yl.gao@polyu.edu.hk

PMID: 22109022
DOI: 10.1364/OE.19.021717

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.

Publication types

Research Support, Non-U.S. Gov't