A photonic implementation of the load-balanced switch using feed-forward, two-stage optical time-slot interchangers is proposed here. Despite the simplicity of the architecture, preliminary simulations show a packet loss probability comparable to an architecture using FIFO buffers. I Introduction Packet switching in core and edge routers currently relies on electronic switching fabrics, which n...

Wavelength division multiplexing (WDM) switching has been emerging as the dominant technology in optical networks. In this paper, we study the switching performance of WDM optical packet switch (OPS) equipped with tunable wavelength converter sharing dedicated to each output fiber line under self-similar variable packet length traffic. In this study, we model WDM OPS employing tunable wavelengt...

Optical Packet Switching (OPS) and transmission networks based on Wavelength Division Multiplexing (WDM) have been increasingly deployed in the Internet infrastructure over the last decade in order to meet the huge increasing demand for bandwidth. Several different technologies have been developed for optical packet switching such as space switches, broadcast-and-select, input buffered switches...

we solve the coupled mode equations governing the chalcogenide nonlinear fiber bragg gratings (fbgs) numerically, and obtain the bistability characteristics. the characteristics of the chalcogenide nonlinear fbgs such as: switching threshold intensity, bistability interval, on-off switching ratio are studied. the effects of fbg length and its third order nonlinear refractive index on fbg charac...

IP traffic in the core and access networks increases rapidly by the speed-up of the access network and the spread of the rich applications. 10 Gigabit Ethernet (10 GE) becomes a popular link technology to connect IP routers and Ethernet switches not only intra-office transmission links but also inter-office long reach transmission links. The optical layer protection switching is expected to pro...

The IST-LASAGNE project [1], investigates all-optical label swapping employing optical logic gates in network nodes: in other words, the intention is not only to switch the payload of a burst or packet optically, but also to process the accompanying header in the optical domain. All-optical packet-switching forms in that way the logical evolution of optical packet-switched (OPS) networks. It ov...

Optical switching cores are fast gaining importance for deployment in internet switches/routers. The reconfiguration of these switches requires a large timely switching overhead. The design of efficient algorithms that take into account the configuration overhead has been widely researched. However, all previous research solely focuses on switching algorithms that optimize the performance featu...

Next generation backbone networks will likely consist of IP routers as well as optical cross connects (OXCs) and will deploy an optical control plane protocol. Generalized Multi Protocol Label Switching (GMPLS) has been proposed as the candidate of choice for the control plane. Optical fibers may carry large volumes of traffic and therefore adequate mechanisms must exist to enable the network t...

In order to support the continuous growth of transmission capacity demand, optical packet switching technology is emerging as a strong candidate, promising to allow fast dynamic allocation of wavelength-division multiplexing (channels, combined with a high degree of statistical resource sharing). This work addresses the design of optical switch architectures, based on previous proposals availab...

Optical packet and burst switching have been proposed for networks because of the increased demand for capacity to transport traffic generated by various applications at present and in future. In optical packet switching networks the payload and the header of a packet are conveyed in the same channel, while burst switching networks allow the separate transportation of the payload and the header...