Waveband routed optical packet switch: implementation and performance evaluation

Politi, T.; Klonidis, Dimitrios; Tzanakaki, Anna; O’Mahony, M.J.; Tomkos, Ioannis

doi:10.1117/1.2195369

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…This paper proposes a new MG-OXC architecture that relies on a set of waveband converters followed by a passive wavelength routing device, based on arrayed waveguide grating (AWG) technology. The configuration uses an input WBC layer followed by an AWG to enable optical switching and an output single wavelength conversion (SWC) layer for regeneration [22]. This is because multi-wavelength regeneration is still immature.…”

Section: Key Building Blocks For Mg-oxc: Converters Regenerators Anmentioning

confidence: 99%

“…[25] do not take into account the wavelength dependence of the WBC and SWC and hence cannot decide on the uniformity of the performance of all the channels. However, in this paper we investigated only available technology that has been experimentally investigated [12,13,22] and not the possibility of using regenerative waveband converters, for example.…”

Section: Physical Performance Of a Single-layer Mg-oxcmentioning

confidence: 99%

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Single-layer multigranular optical cross-connect architecture with conversion capability and enhanced flexibility

et al. 2006

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The rapid advances in WDM technology are expected to bring about tremendous growth in the size of optical cross connects (OXCs). In this context, multigranular OXCs (MG-OXCs) have been suggested as a means of reducing the amount of equipment required. Here we expand the concept of MG-OXCs to include optical packet granularity and review the key building blocks for the advent of MG-OXCs. A single-layer MG-OXC is suggested that offers enhanced flexibility with respect to other single-layer concepts, conversion capability, and good physical performance. Concatenation performance is analytically investigated.

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Section: Key Building Blocks For Mg-oxc: Converters Regenerators Anmentioning

confidence: 99%

Section: Physical Performance Of a Single-layer Mg-oxcmentioning

confidence: 99%

Single-layer multigranular optical cross-connect architecture with conversion capability and enhanced flexibility

et al. 2006

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Framework for waveband switching in multigranular optical networks: part I-multigranular cross-connect architectures [Invited]

2006

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Optical networks using wavelength-division multiplexing (WDM) are the foremost solution to the ever-increasing traffic in the Internet backbone. Rapid advances in WDM technology will enable each fiber to carry hundreds or even a thousand wavelengths (using dense-WDM, or DWDM, and ultra-DWDM) of traffic. This, coupled with worldwide fiber deployment, will bring about a tremendous increase in the size of the optical cross-connects, i.e., the number of ports of the wavelength switching elements. Waveband switching (WBS), wherein wavelengths are grouped into bands and switched as a single entity, can reduce the cost and control complexity of switching nodes by minimizing the port count. This paper presents a detailed study on recent advances and open research issues in WBS networks. In this study, we investigate in detail the architecture for various WBS cross-connects and compare them in tenns of the number of ports and complexity and also in terms of how flexible they are in adjusting to dynamic traffic. We outline various techniques for grouping wavelengths into bands for the purpose of WBS and show how traditional wavelength routing is different from waveband routing and why techniques developed for wavelength-routed networks (WRNs) cannot be simply applied to WBS networks. We also outline how traffic grooming of subwavelength traffic can be done in WBS networks. In part II of this study rCao et aI., submitted to J. Opt. Netw.l, we study the effect of wavelength conversion on the performance of WBS networks with reconfigurable MG-OXCs. We present an algorithm for waveband grouping in wavelength-convertible networks and evaluate its performance. We also investigate issues related to survivability in WBS networks and show how waveband and wavelength conversion can be used to recover from failures in WBS networks.

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Waveband routed optical packet switch: implementation and performance evaluation

Abstract: Abstract. An optical packet switch based on wavelength routing and optical waveband conversion is demonstrated. The switch performs header extraction, packet routing, and regeneration and exhibits very good physical performance.

Cited by 2 publications

References 3 publications

Single-layer multigranular optical cross-connect architecture with conversion capability and enhanced flexibility

Single-layer multigranular optical cross-connect architecture with conversion capability and enhanced flexibility

Framework for waveband switching in multigranular optical networks: part I-multigranular cross-connect architectures [Invited]

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