An alternative implementation perspective for the scheduling switch architecture

In this paper, a novel configuration is proposed for the implementation of an almost all-optical switch architecture called the scheduling switch, which when combined with appropriate wait-for-reservation or tell-and-go connection and flow control protocols provides lossless communication for traffi...

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Bibliographic Details
Published in:Journal of lightwave technology 2005-02, Vol.23 (2), p.732-739
Main Authors: Theophilopoulos, G., Kalyvas, M., Yiannopoulos, K., Vlachos, K., Varvarigos, E.A., Avramopoulos, H.
Format: Article
Language:English
Subjects:
Active control
All-optical packet switching
all-optical signal processing
Applied sciences
Architecture
Communication switching
Communication system traffic control
Exact sciences and technology
exchange/bypass (E/B) switch
Fiber nonlinear optics
High speed optical techniques
lossless communication
Nonlinear optics
Nonlinearity
Optical losses
Optical switches
Protocols
Reduction
Scheduling
scheduling switch architecture
semiconductor optical amplifier (SOA)
Semiconductor optical amplifiers
Switches
Switching and signalling
Synchronous digital hierarchy
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Traffic flow
ultrafast nonlinear interferometer
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Summary:In this paper, a novel configuration is proposed for the implementation of an almost all-optical switch architecture called the scheduling switch, which when combined with appropriate wait-for-reservation or tell-and-go connection and flow control protocols provides lossless communication for traffic that satisfies certain smoothness properties. An all-optical 2/spl times/2 exchange/bypass (E/B) switch based on the nonlinear operation of a semiconductor optical amplifier (SOA) is considered as the basic building block of the scheduling switch as opposed to active SOA-based space switches that use injection current to switch between ON and OFF states. The experimental demonstration of the optically addressable 2/spl times/2 E/B, which is summarized for 10-Gb/s data packets as well as synchronous digital hierarchy (SDH)/STM-64 data frames, ensures the feasibility of the proposed configuration at high speeds, with low switching energy and low losses during the scheduling process. In addition, it provides reduction of the number of required components for the construction of the scheduling switch, which is calculated to be 50% in the number of active elements and 33% in the fiber length.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2004.838857