Group Delay Ripple Reduction in Cascaded ROADMs by Adaptively Modulated Optical OFDM signals for Metro/Regional Networks

被引：0

作者：

Giacoumidis, E. ^{[1
]}

Tomkos, I. ^{[1
]}

Tang, J. M. ^{[2
]}

机构：

[1] AIT, Networks & Opt Commun NOC Grp, Athens, Greece

[2] Bangor Univ, Sch Elect Engn, Bangor, Gwynedd, Wales

来源：

PROCEEDINGS OF THE 2011 16TH EUROPEAN CONFERENCE ON NETWORKS AND OPTICAL COMMUNICATIONS (NOC 2011) | 2011年

关键词：

TRANSMISSION; PERFORMANCE;

D O I：

暂无

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：

The Group Delay Ripple (GDR) is investigated thoroughly, for the first time, for optical OFDM (OOFDM) transceivers using adaptive modulation in intensity modulation and direct detection (IM-DD) transparent Metro/Regional network systems incorporating cascaded reconfigurable optical add/drop multiplexers (ROADMs). The considered ROADMs are based on two optical filters, fibre-Bragg grating (FBG) and a wavelength-blocker (WB)/wavelength selective switch (WSS) device. It is shown that adaptive modulation can enhance the network tolerance not only to the GDR, but also to the pass-band loss ripple (LR) and frequencies dip, leading also to an improved system performance of up to about 60% in comparison with conventional identical modulation.

引用

页码：88 / 91

页数：4

共 25 条

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