Cross-phase-modulation-induced nonlinear phase noise in WDM direct-detection DPSK systems

被引：42
|
作者：
Kim, H [1 ]
机构：
[1] Bell Labs, Lucent Technol, Holmdel, NJ 07733 USA
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2003年 / 21卷 / 08期
关键词：
cross-phase modulation (XPM); differential phase-shift keying (DPSK); fiber nonlinearity;
D O I：
10.1109/JLT.2003.815648
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In direct-detection differential-phase-shift-keying (DPSK) systems, the signed-spontaneous emission beat noise introduces phase noise due to Kerr nonlinearity. In wave-length-division-multiplexed (WDM) systems, this nonlinear phase noise comes not only from the channel itself through self-phase modulation (SPM) but also from the other channels through cross-phase modulation (XPM). In this paper, we theoretically and experimentally investigate XPM-induced nonlinear phase noise. We calculate the performance degradation of DPSK systems caused by XPM-induced nonlinear phase noise in addition to SPM-induced phase noise and experimentally verify it using a 600-km nonzero-dispersion-shifted-fiber link.
引用
收藏
页码：1770 / 1774
页数：5
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