.Performance improvement of a coherent optical fiber communication system with the phase estimation algorithm[J].Optoelectronics Letters,2010,6(1):51-53 Performance improvement of a coherent optical fiber communication system with the phase estimation algorithm 李琦江 School;Electronics;Information;Engineering;Beijing;University;Aeronautics;Astronautics; Abstract:       The phase estimation based on M-th power algorithm is employed in a differential quadrature phase-shift keying (DQPSK) coherent optical fiber communication system, and the system performance improvement is investigated through numerical simulations. It is found that the application of phase estimation algorithm can restrain the phase noise induced by laser linewidth and fiber nonlinear effects, and recover the carrier phase, so the transmission distance of a 40 Gb/s DQPSK-RZ system can be extended to more t... Hits: 3665 Download times: 189 View Full Text    Download reader