Christina Tanya Politi

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Routing in dynamic future optical networks will depend on the underlying technology and more specifically on whether standard grid or flexi-grid technology will be used. In particular for dynamic flexi-grid networks resource allocation and routing concerns both path establishment and allocation of specific spectrum which in turn relates to the modulation(More)
—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)
In this paper we present a hybrid opto-electronic switch architecture, which can be enhance the performance of optical packet switching (OPS) schemes. The proposed architecture is based on the use of electronic line-cards and packet cross-connect to a limited degree utilizing the large buffering capacity available only by means of electronic subsystems.(More)
Wavelength conversion has been acknowledged as one of the most significant optical processing functions and various papers have been involved with investigating methods of translating very high bit-rate data into other wavelengths. This paper will give an overview of the recent advances in the area, with emphasis on methods that can be used as both(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)
Improving the performance of electronic and optoelectronic components and systems has enabled the investigation of transmitting optical channels with data rates greater than 40 Gb/s. However, for transporting high capacity channels on demand over long distances, considerable signal processing is necessary, with current emphasis being on digital techniques.(More)
The increasing popularity of converged media services is promoting the deployment of a range of broadband networking technologies aiming at serving the increased bandwidth as well as service portability and user mobility demands. To optimally address the above requirements hybrid access network architectures coupling the benefits of optical (high capacity,(More)
Planning and routing in future elastic optical networks will depend on the underlying technology and more specifically on whether standard grid or flex-grid technology will be used. In particular, for dynamic flex-grid networks, resource allocation and routing concern both path establishment and allocation of specific spectrum, which in turn relates to the(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)