Maximum Size and Throughput of SOA-Based Optical Burst Switching Nodes With Limited Tuning-Range Wavelength Converters and FDL Buffers

被引：8

作者：

Buchta, Hao ^{[1
]}

Gauger, Christoph M. ^{[2
]}

Patzak, Erwin ^{[1
,2
]}

机构：

[1] HHI, Fraunhofer Inst Telecommun, D-10587 Berlin, Germany

[2] Univ Stuttgart, Inst Commun Networks & Comp Engn IKR, D-70569 Stuttgart, Germany

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2008年 / 26卷 / 13-16期

关键词：

Fiber delay line (FDL) buffer; optical burst switching (OBS); node architecture; optical switching; scalability; semiconductor optical amplifier (SOA); wavelength converter;

D O I：

10.1109/JLT.2008.923329

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：

In this paper, we show the physical limitations of semiconductor optical amplifier (SOA)-based switching nodes for optical burst switching (OBS). The investigation covers one basic tune-and-select (TAS) architecture, as well as extensions with wavelength converters of limited tuning range (LTR) and dedicated and shared fiber delay line (FDL) buffers. Their maximum size and throughput are analyzed for nodes with four input/output fibers at different bit rates. As main impairments for signal degradation amplifier noise and crosstalk are considered. It is shown that the advanced contention resolution functionality leads to smaller-sized nodes due to higher losses and noise. Among the considered node architectures the highest maximum throughput, can be achieved with TAS-LTR due to the smaller number of SOA noise contributions.

引用

页码：2919 / 2927

页数：9