论文信息 - Correlation-Based Carrier Phase Estimation for WDM DP-QPSK Transmission

Correlation-Based Carrier Phase Estimation for WDM DP-QPSK Transmission

A novel algorithm for frequency offset compensation and carrier phase estimation in systems with 40 or 111 Gb/s coherent dual-polarization quadrature phase-shift keying (DP-QPSK) with on-off keying or DP-QPSK neighbors is demonstrated. The algorithm, which applies correlation phase adjustment embedded between digital differential demodulation and nonredundant error correction, leads to a significant performance improvement over standard algorithms.

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