title: Modulation-format-independent blind phase search algorithm for coherent optical square M-QAM systems.
abstract: Modulation format independence is one of the key challenges in digital signal processing (DSP) techniques for future elastic optical transmissions. We proposed a modulation-format-independent blind phase search (MFI-BPS) algorithm for square M-ary quadrature amplitude modulation (M-QAM) systems, in which modulation format recognition (MFR) and carrier phase estimation (CPE), are included and implemented both in a feed-forward manner. Comprehensive simulation and the experimental studies on 224 Gbit/s polarization multiplexing 16-QAM (PM-16QAM) systems demonstrate the feasibility and the effectiveness of the proposed MFI-BPS algorithm.
authors.forename: Xian
authors.initials: X
authors.lastname: Zhou
authors.forename: Kangping
authors.initials: K
authors.lastname: Zhong
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Gao
authors.forename: Chao
authors.initials: C
authors.lastname: Lu
authors.forename: Alan Pak Tao
authors.initials: AP
authors.lastname: Lau
authors.forename: Keping
authors.initials: K
authors.lastname: Long