Title :
Cross-phase modulation in transmission systems with nonlinear dispersion compensation fibers
Author :
Yulong Wang ; Jian Chen ; Yong Zhang ; Hongru Zhou
Author_Institution :
Sch. of InfoComm Eng., Nanjing Univ. of Posts & Telecommun., Nanjing, China
Abstract :
Cross-phase modulation (XPM) induced by the lower rate on-off keying (OOK) channels has been considered as the main impairment on quadrature phase shift keying (QPSK) channels in hybrid wavelength division multiplexed (WDM) optical coherent systems. We extend a linear IM/XPM model for XPM by considering the nonlinear effects induced by dispersion compensation fibers (DCF) in dispersion compensated optical links. From such a model we estimate the variance of the XPM induced nonlinear phase noise. The bit error rate (BER) is provided for QPSK signal contaminated by both XPM and ASE induced phase noise. The extended model and the analytical expressions show a good agreement with Monte-Carlo (MC) simulations. Simulation results also show that the XPM contributions of the DCFs impact the IM/XPM filter amplitude and the performance of the dispersion compensation system.
Keywords :
Monte Carlo methods; amplitude shift keying; error statistics; light coherence; optical fibre communication; optical fibre dispersion; optical filters; optical modulation; phase modulation; phase noise; quadrature phase shift keying; wavelength division multiplexing; wireless channels; ASE induced phase noise; BER; DCF; MC simulation; Monte Carlo simulation; QPSK channel; QPSK signal; XPM; XPM induced phase noise; bit error rate; cross-phase modulation; dispersion compensated optical link; dispersion compensation fiber; hybrid WDM optical coherent system; hybrid wavelength division multiplexed optical coherent system; linear IM-XPM filter model; lower rate OOK channel; lower rate on-off keying channels; nonlinear dispersion compensation fiber; nonlinear effects; nonlinear phase noise; quadrature phase shift keying channel; transmission system; Optical fiber communication; Optical fiber dispersion; Optical fiber filters; Optical fibers; Phase shift keying; Cross-phase modulation (XPM); Dispersion compensation fiber(DCF); Quadrature phase shift keying (QPSK); Wavelength division multiplexed (WDM);
Conference_Titel :
Optical Communications and Networks (ICOCN), 2015 14th International Conference on
Conference_Location :
Nanjing
DOI :
10.1109/ICOCN.2015.7203647
