Christina Tanya Politi

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—This paper presents the results of the optical packet switched network (OPSnet) project, which investigated the design of an asynchronous optical packet switch suitable for the core of an optical transport network (OTN). The requirements for the switch were to control and route variable-length packets transmitted at bit rates beyond 100 Gbit/s. The(More)
— Clustering of nodes in optical networks has been proven an efficient way to serve end to end connectivity. However, clustering requires specific topological characteristics, or alternatively the introduction of significant alterations of an existing topology in order to achieve the expected performance improvements. The comparison of future dynamic(More)
This paper presents a hybrid optical/electrical switch for high-capacity future network development. A switch architecture to provide packet switching by solving contention in wavelength and time domains is considered relying on available optical and electrical technology. Physical and logical aspects regarding switch feasibility and management, in relation(More)
Statistical multiplexing at the optical layer has been considered a critical requirement in order to build the next generation of ultra-high capacity optical transport networks in a cost-efficient manner. However, even today, the state of the art of commercially available optical core networks is based on mature wavelength switching and routing(More)
SUMMARY A novel optical header extraction scheme based on optical differential phase shift keying—DPSK—decoding is examined analytically and experimentally. The header is applied in front of the payload, on the phase of a pulsed optical level introduced for the duration of the header. The proposed scheme offers maximized header extraction efficiency,(More)
The emerging popularity of bandwidth-starving applications (such as internet video, cloud storage etc) has lead to an exponential growth of the amount of data to be transmitted over long distances using optical fibre. Fibre transmission impairments, like chromatic dispersion (CD) remain a limiting factor on optical transmission and hence their compensation(More)