Impact of Inter-Channel Nonlinearities on 10-Gbaud NRZ-DQPSK WDM Transmission over Raman Amplified NZDSF Spans

Conference: ECOC 2007 - 33rd European Conference and Exhibition of Optical Communication
09/16/2007 - 09/20/2007 at Berlin, Germany

Proceedings: ECOC 2007

Pages: 2Language: englishTyp: PDF

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Xie, Chongjin; Chandrasekhar, S.; Liu, Xiang (Bell Labs, Alcatel-Lucent, 791 Holmdel-Keyport Road, Holmdel, NJ 07733, USA)

We show that inter-channel cross-phase modulation (XPM) significantly reduces the performance of a 10-Gbaud differential-quadrature-phase-shift-keying (DQPSK) WDM transmission system, and nonlinear polarization scattering causes further performance degradation when polarization division multiplexing is applied.