Optimized bandwidth-limited duobinary coding format for ultra dense WDM systems

被引：0
|
作者：
Pavlovic, NB [1 ]
Cartaxo, AVT [1 ]
机构：
[1] Univ Tecn Lisboa, Inst Telecommun, Inst Super Tecn, P-1049001 Lisbon, Portugal
来源：
2005 7TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS, VOL 2, PROCEEDINGS | 2005年
关键词：
channel spacing; crosstalk; duobinary coding format; electrical and optical filtering; ultra dense WDM system;
D O I：
暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
By varying simultaneously the bandwidths of electrical transmitter filter, multiplexer and demultiplexer, the system performance of several duobinary coding formats is optimized for 40 Gbit/s/channel ultra dense wavelength division multiplexing (UDWDM) system with 50 GHz of channel spacing after 4x80 km of transmission. It is shown that bandwidth-limited (BL) duobinary generation schemes with optimized electrical transmitter filter bandwidth can achieve a Q-factor improvement of 1.4 dB over BL-conventional duobinary coding schemes. Moreover, the optimized BL-duobinary format achieves a better UDWDM system performance than BL-phase-shaped binary transmission, for which a capacityxdistance record was demonstrated.
引用
收藏
页码：385 / 388
页数：4
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