A long-reach ultra-dense 10 Gbit/s WDM-PON using a digital coherent receiver

被引：51

作者：

Lavery, Domanic ^{[1
]}

Ionescu, Maria ^{[1
]}

Makovejs, Sergejs ^{[1
]}

Torrengo, Enrico ^{[2
]}

Savory, Seb J. ^{[1
]}

机构：

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

[2] Politecn Torino, Dipartimento Elettron, I-10129 Turin, Italy

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 25期

基金：

英国工程与自然科学研究理事会;

关键词：

ACCESS;

D O I：

10.1364/OE.18.025855

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the impact of channel spacing and nonlinear transmission over 120 km of standard single mode fiber for a 10 Gbit/s long-reach wavelength division multiplexed passive optical network (WDM-PON). We employed polarization division multiplexed quadrature phase shift keying (PDM-QPSK), which allowed data transmission at 3.125 GBaud, including a 25% overhead for forward error correction. To receive this spectrally efficient modulation format, a digital coherent receiver was employed, allowing for both frequency selectivity and an increased sensitivity of -45 dBm (25 photons/bit). We investigated a channel spacing as low as 5 GHz, for which the loss budget was 48.6 dB, increasing to 54.0 dB for a 50 GHz grid. (c) 2010 Optical Society of America

引用

页码：25855 / 25860

页数：6

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