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Optical Engineering

Studies on the passive-star-coupler architecture for optical-burst-switched networks
Author(s): Yiyuan Xie; Jianguo Zhang; Suixin Zhang; Xiaoping Xie
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Paper Abstract

Considering the state of the art of wavelength conversion technology, it is likely to dictate a more limited and sparse deployment of wavelength converters in optical burst switching (OBS) networks. Without wavelength conversion capabilities at optical switches, how to avoid burst contention becomes an important issue. This paper proposes an approach to controlling wavelength-division-multiplexing passive optical stars, consisting in queuing arrivals for delayed reception, to be used in OBS networks. This solution brings optical star networks a step closer to all-optical realization. In addition, it allows almost total utilization of the channels, obtainable until now only by time-division multiplexing control. The proposed solution does not suffer performance degradation under heterogeneous traffic conditions and increasing number of nodes. It is thus unique in offering the potential for an all-optical solution and providing at the same time high throughput, low delay, small buffer requirements, and robustness under all traffic conditions.

Paper Details

Date Published: 1 August 2008
PDF: 6 pages
Opt. Eng. 47(8) 085007 doi: 10.1117/1.2966139
Published in: Optical Engineering Volume 47, Issue 8
Show Author Affiliations
Yiyuan Xie, Xi'an Institute of Optics and Precision Mechanics (China)
Jianguo Zhang, Xi'an Institute of Optics and Precision Mechanics (China)
Suixin Zhang, Xi'an Institute of Optics and Precision Mechanics (China)
Xiaoping Xie, Xi'an Institute of Optics and Precision Mechanics (China)

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