Optimized filtering for AMI-RZ and DCS-RZ SSB signals in 40-Gb/s/ch-based UDWDM systems

被引：12
作者：
Charrua, PMA [1 ]
Cartaxo, AVT [1 ]
机构：
[1] Univ Tecn Lisboa, Dept Elect & Comp Engn, Inst Telecommun, Opt Commun Grp,Inst Super Tecn, P-1049001 Lisbon, Portugal
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 01期
关键词：
alternate-mark inversion (AMI); dispersion-compensation ratio (DCR); duobinary-carrier suppressed (DCS); long-haul transmission; single sideband (SSB); ultradense wavelength-division; multiplexing (UDWDM);
D O I：
10.1109/LPT.2004.838282
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：
Optical sideband suppression. filtering is proposed for alternate-mark-inversion return-to-zero (AMI-RZ) and duobinary-carrier-suppressed-RZ (DCS-RZ) coding formats as a solution for improving the performance of 40-Gb/s/channel with 50-GHz channel spacing wavelength-division-multiplexing systems. A suppressed sideband power ratio exceeding 20 dB is achieved by both formats; hence, these filtered signals are single-sideband (SSB) signals. Simulation results reveal that AMI-RZ-SSB and DCS-RZ-SSB signals exhibit similar nonlinear transmission performance and better dispersion-compensation-ratio tolerance relative to the duobinary signal. After 8 x 80 km of low-cost transmission spans and considering easy configurations at the transmitter and receiver, a Q factor around six remains attainable by both SSB signals.
引用
收藏
页码：223 / 225
页数：3
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