Improving the Nonlinear Tolerance of Polarization-Division-Multiplexed CO-OFDM in Long-Haul Fiber Transmission

被引：102

作者：

Liu, Xiang ^{[1
]}

Buchali, Fred ^{[2
]}

Tkach, Robert W. ^{[1
]}

机构：

[1] Alcatel Lucent, Bell Labs, Holmdel, NJ 07733 USA

[2] Alcatel Lucent, Bell Labs, D-70435 Stuttgart, Germany

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2009年 / 27卷 / 16期

关键词：

Coherent optical orthogonal frequency-division multiplexing (CO-OFDM); fiber nonlinearity; polarization-division multiplexing (PDM); wavelength-division multiplexing (WDM); COHERENT OPTICAL OFDM; TIME;

D O I：

10.1109/JLT.2009.2022767

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：

We present digital signal processing techniques and algorithms for improving the tolerance of polarization-division multiplexed (PDM) coherent optical orthogonal frequency-division multiplexing (CO-OFDM) to fiber nonlinear effects, in both single-channel and wavelength-division multiplexed (WDM) transmission. For single-channel transmission, we discuss a self-phase modulation (SPM) compensation method that jointly processes two polarization components of a PDM CO-OFDM signal. For WDM transmission, we describe a novel OFDM channel estimation scheme that reduces the cross-phase-modulation (XPM) penalty among the WDM channels. The nonlinear tolerance improvements enabled by these signal processing techniques are quantified through numerical simulations for both dispersion-unmanaged and dispersion-managed long-haul optical fiber transmission with 112-Gb/s PDM CO-OFDM wavelength channels.

引用

页码：3632 / 3640

页数：9

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[2]

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