Pulse-shaping versus digital backpropagation in 224Gbit/s PDM-16QAM transmission

被引：20

作者：

Behrens, Carsten ^{[1
]}

Makovejs, Sergejs ^{[1
]}

Killey, Robert I. ^{[1
]}

Savory, Seb J. ^{[1
]}

Chen, Ming ^{[2
]}

Bayvel, Polina ^{[1
]}

机构：

[1] UCL, Opt Networks Grp, Dept Elect & Elect Engn, London WC1E 7JE, England

[2] Huawei Technol, European Res Ctr, D-80992 Munich, Germany

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 14期

关键词：

COMPENSATION;

D O I：

10.1364/OE.19.012879

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the transmission performance of 224Gbit/s polarization-division-multiplexed 16-state quadrature amplitude modulation (PDM-16QAM) for systems employing standard single mode fiber (SSMF) and erbium doped fiber amplifiers (EDFAs). We consider the effectiveness of return-to-zero (RZ) data pulses with varying duty cycles and digital backpropagation (DBP) in reducing nonlinear distortion in wavelength-division-multiplexed (WDM) links with 3, 5, 7 and 9 channels. Similar improvement in transmission reach of 18-25% was achieved either by pulse-carving at the transmitter or by DBP, yielding maximum transmission distances of up to 1760km for RZ-pulse-shapes and 1280km for NRZ. (C) 2011 Optical Society of America

引用

页码：12879 / 12884

页数：6

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