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.
Original language | English |
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Pages (from-to) | 24044-24054 |
Number of pages | 11 |
Journal | Optics Express |
Volume | 22 |
Issue number | 20 |
DOIs | |
Publication status | Published - 1 Jan 2014 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics