This paper proposes a pump wavelength assignment scheme for an optical packet switch with parametric wavelength converters (PWCs) to reduce the number of different colored light sources while a predefined packet loss rate is satisfied. PWCs are separated into two sets. First set, each PWC has a different pump wavelength from each other. Second set, all PWCs have the same pump wavelength placed ...

The technological evolution of telecommunication networks in recent years has shown that the availability of transmission bandwidth has been growing at a faster pace than the STNitChing bandwidth inside network nodes [4]. This means that in the near future electronic switching will become the perfonnance bottleneck of high-capacity networks. The cost of a Switching device (be it an IP router, a...

Wavelength Division Multiplexing (WDM) technology is the most promising technology for the proper utilization of huge raw bandwidth provided by an optical fiber. One of the key problems in implementing the all-optical WDM network is the packet contention. This problem can be solved by several different techniques. In time domain approach the packet contention can be reduced by incorporating Fib...

In order to meet the ever-growing demand of transmission capacity, optical packet switching technology is emerging as a major candidate, promising to allow fast dynamic allocation of WDM channels, combined with a high degree of statistical resource sharing. This paper describes the architecture of an optical switching node for IP networks based on an arrayed waveguide grating device to route pa...

We propose a novel scheduling algorithm for the optical packet switch (OPS) with a hybrid buffer consisting of a fiber delay line (FDL) buffer and a shared electronic buffer, for contention resolution of asynchronous variable length packets. By employing the end of each channel together with the time intervals between the scheduled packets of each channel in the output line, simulation results ...

Graduate School of Frontier Sciences, The University of Tokyo Kashiwanoha 5–1–5, Kashiwa-shi, Chiba, 277–8561 JAPAN Graduate School of Science and Engineering, Chuo University Kasuga 1–13–27, Bunkyo-ku, Tokyo, 112–8551, JAPAN School of Engineering, The University of Tokyo Hongo 7–3–1, Bunkyo-ku, Tokyo, 113–8656, JAPAN Research Center for Advanced Science and Technology, The University of Tokyo ...

Optical packet switching based on Wavelength Division Multiplexing (WDM) offers the possibility of increased granularity and more effective use bandwidth in large capacity systems, on scale of Tb/s. The natural integration of optical packet switching in photonic technology opens up the possibility of packet switching in transparent optical channels , where the packets remain from end-to-end in ...

We describe wavelength-routed switching technology for 25-Gbit/s optical packets using a tunable transmitter that monolithically integrates a parallel-ring-resonator tunable laser and an InGaAlAs electroabsorption modulator (EAM). The transmitter provided accurate wavelength tunability with 100-GHz spacing and small output power variation. A 25-Gbit/s burst-mode optical-packet data was encoded ...

Optical networks appear to be the solution of choice for providing a faster networking infrastructure that can meet the explosive growth of the Internet. One of the key issues that needs to be addressed is how optical networks can be used to carry IP traffic. In this paper, we survey some of the techniques that have been proposed in the literature for transporting IP traffic over an optical net...

In this paper, we introduce a novel self-routed wavelength-addressable switching network (SWANET) that provides wavelength-transparent optical data paths between end-points, conng-ured by wavelength-coded optical signals. The network is based on a new scheme for encoding destination addresses using a sequence of wavelengths. This allows large networks to be constructed using a moderate number o...