Modulation-format-independent blind phase search algorithm for coherent optical square M-QAM systems

Xian Zhou, Kangping Zhong, Yuliang Gao, Chao Lu, Pak Tao Lau, Keping Long

Research output: Journal article publicationJournal articleAcademic researchpeer-review

38 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)24044-24054
Number of pages11
JournalOptics Express
Issue number20
Publication statusPublished - 1 Jan 2014

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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