Title :
Nonlinear Phase Noise Mitigation With Soft-Differential Decoding and Nonredundant Error Correction for Hybrid 10G/100G Transmission
Author :
Hauske, Fabian N. ; Zhang, Zhuhong ; Li, Chuandong ; Zhu, Yanjun ; Li, Yanming ; Zhu, Fei ; Bai, Yusheng
Author_Institution :
Huawei Technol. Duesseldorf GmbH, Munich, Germany
fDate :
7/1/2011 12:00:00 AM
Abstract :
We report experimental results of 112-Gb/s po larization-division-multiplexed return-to-zero quaternary phase-shift-keying (PDM-RZ-QPSK) transmission over dis persion-managed 1200-km links embedded between 10.7-GBaud on-off keying nonreturn-to-zero (OOK-NRZ) neighbors. Taking into account implementation constraints for equalization and synchronization of the digital signal processing (DSP) by means of processing delay and parallelization, the performances without differential decoding, with hard-differential decoding, and with soft-differential decoding are evaluated. The combination of soft-differential decoding with nonredundant error correction is identified to provide the best mitigation of cross-phase modulation (XPM)-induced nonlinear phase noise.
Keywords :
decoding; error correction; multiplexing; noise abatement; nonlinear optics; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical information processing; optical links; optical modulation; optical noise; phase noise; quadrature phase shift keying; synchronisation; bit rate 112 Gbit/s; cross-phase modulation; digital signal processing; dispersion-managed links; distance 1200 km; hard-differential decoding; hybrid transmission; nonlinear phase noise mitigation; nonredundant error correction; on-off keying nonreturn-to-zero links; polarization-division-multiplexed return-to-zero quaternary phase-shift-keying transmission; soft-differential decoding; synchronization; Bit error rate; Decoding; Digital signal processing; Optical noise; Phase noise; Phase shift keying; Signal to noise ratio; Coherent detection; differential decoding; digital receiver; hybrid transmission; phase noise;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2141127
