Optical label switched networks: the FP5-IST STOLAS project

A.M.J. Koonen, I. Tafur Monroy, J.J. Vegas Olmos, C. Peucheret, J.G.L. Jennen, E. Zouganeli, E. Breusegem, van, J.J.G.M. van der Tol, T. Mullane, G. Morthier, K. Blidegn, P. Raaby

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


Within the STOLAS project, an EC-funded project in the 5th Framework Programme which has recently been concluded, an orthogonal optical labeling scheme using Frequency Shift Keying modulation for the 155 Mbit/s label and intensity modulation for the 10 Gbit/s payload data has been explored. This scheme enables to improve the throughput of packet-switched networks by efficient label processing, and by optical routing of the payload of the packet bursts. The label-swapping is done in intensitydriven wavelength converters, deploying cross-phase modulation in SOAs implemented in an MZI configuration. The packet bursts are switched by means of passive waveguide routers, as a function of their wavelength. The paper addresses the networking aspects of this FSK/IM orthogonal labeling scheme, and discusses the advantages and disadvantages when comparing it with alternative schemes. The key components for implementing an orthogonal labelcontrolled router node are addressed, as well as the node architecture, its economical aspects, and experimental results obtained. The impact of these results on the upgradability and the scalability of a network deploying orthogonal labeling are discussed, and the prospects for application in future high-capacity optical packetswitched networks. A first deployment of this labeling technique may be made in hybrid circuit-packet-switched networks, e.g. for routing of overspill packets.
Original languageEnglish
Title of host publicationProceedings of the 10th European Conference on Networks & Optical Communications (NOC 2005)
Number of pages8
Publication statusPublished - 2005
Event10th European Conference on Networks and Optical Communications (NOC 2005) - London, United Kingdom
Duration: 5 Jul 20057 Jul 2005
Conference number: 10


Conference10th European Conference on Networks and Optical Communications (NOC 2005)
Abbreviated titleNOC 2005
Country/TerritoryUnited Kingdom


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