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Photonics Domain
Network Interworking Chains

KEys to Optical Packet Switching

Main Objective
The main objective of the KEOPS project is to define, develop and assess the concept of optical packet switching and routing networks capable of providing transparency to the payload bit rate, using optical packets of fixed duration with low bit rate headers, to simplify processing at the network/node interfaces. The feasibility of the KEOPS system concepts will be assessed by modelling, laboratory experiments, and testbed implementation of optical packet switch nodes, a network/node interfacing block and a fully equipped demonstrator.

Technical Approach
The work is organized in three workpackage groups:

The system concepts employ switch architectures using photonic techniques (space and wavelength switching for routing and multiplexing, time switching using optical fibre buffers), to perform packet routing, multiplexing and buffering. Use of electronics is reserved for the switch control, where speed is not a limiting factor. The concepts are validated in experimental testbeds built from state-of-the-art photonic technology.

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Network reference structure

Summary of Trial
A demonstrator and testbeds will be implemented in a laboratory:

In addition, components from KEOPS will be used in the field trials of the ACTS OPEN project.

Key Issues

Achievements
Demonstration of benefits of transparent optical packet layer within an all-optical network reference structure:

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Architecture of the Wavelength Routing Switch Demonstrator

Expected Impact
By developing new key components for photonic switching, validating system concepts, and proposing new network concepts adapted to the customer needs (transparency to the bit rate), the KEOPS project will provide the fundamental basis for the introduction of packet switching techniques in the future transparent optical IBC network.

Contact:

					Monique Renaud
Alcatel Alsthom Recherche
Route de Nozay
91460 Marcoussis
France

Tel:    +33-1-69631924
Fax:    +33-1-69631422

E-mail:
					(email removed)
				

List of Domains and Chains
Photonics Domain
Network Interworking Chains

List of participants

F
Alcatel Alsthom Recherche
F
Alcatel CIT
D
Alcatel SEL
I
Centro Studi e Laboratori Telecommunicazioni
CH
Eidgenössische Technische Hochschule Zürich
F
France Telecom - CNET
DK
Technical University of Denmark
I
University of Bologna
UK
University of Strathclyde

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