Showing papers by "Mike J. O'Mahony published in 2007"

A Fully Functional Application-aware Optical Burst Switched Network Test-bed

Abstract: This paper presents an application-aware asynchronous optical burst switched network demonstrator. Fully functional edge and core routers as well as a novel resource discovery signalling protocol is being demonstrated.

The “OPORON” Project: Demonstration of a Fully Functional End-to-End Asynchronous Optical Packet-Switched Network

Abstract: This paper presents the outcomes of the optical packet switching over wavelength routed network (OPORON) project, which demonstrated an asynchronous end-to-end optical packet switched network. Several novel techniques and subsystems for optical packet-switched network are analyzed and described in details, and their functionalities are validated through a demonstrator. The demonstrated network comprises two wavelength agile edge routers with traffic-shaping capabilities, a fully controlled core router with wavelength conversion (WC) capability, and a control plane. The OPORON edge router incorporates a novel traffic aggregation method, asynchronous optical packet transceiver, and agile wavelength allocation mechanism. The OPORON core router is based on the WC and selection architecture. It utilizes a semiconductor optical-amplifier-based Mach-Zehnder interferometer wavelength converter, in combination with an agile tunable wavelength source and an arrayed waveguide grating, for performing packet switching. The core router also utilizes an advanced and fully controllable mechanism for the packet switch control, which is implemented on field programmable gate array technology. Finally, the integration of the aforementioned subsystems is discussed, and the results of a complete and end-to-end asynchronous and variable length optical packet-switched demonstrator are presented.

Concatenation performance of optical packet switches that incorporate wavelength converters based on four-wave mixing in semiconductor optical amplifiers

Abstract: Four-wave mixing (FWM) in semiconductor optical amplifiers (SOAs) has been acknowledged as a useful wavelength conversion technique especially due to its ability to convert sequences of ultra fast pulses but also simultaneously a number of wavelengths. An analysis is used to investigate the concatenation performance of optical packet switch that incorporate wavelength or waveband converters based on FWM in SOAs.

The "OPORON" Project: Demonstration of a Fully Functional End-to-End Asynchronous Optical

Abstract: This paper presents the outcomes of the optical packet switching over wavelength routed network (OPORON) project, which demonstrated an asynchronous end-to-end optical packet switched network. Several novel techniques and subsys- tems for optical packet-switched network are analyzed and de- scribed in details, and their functionalities are validated through a demonstrator. The demonstrated network comprises two wave- length agile edge routers with traffic-shaping capabilities, a fully controlled core router with wavelength conversion (WC) capa- bility, and a control plane. The OPORON edge router incorpo- rates a novel traffic aggregation method, asynchronous optical packet transceiver, and agile wavelength allocation mechanism. The OPORON core router is based on the WC and selection architecture. It utilizes a semiconductor optical-amplifier-based Mach-Zehnder interferometer wavelength converter, in combi- nation with an agile tunable wavelength source and an arrayed waveguide grating, for performing packet switching. The core router also utilizes an advanced and fully controllable mechanism for the packet switch control, which is implemented on field programmable gate array technology. Finally, the integration of the aforementioned subsystems is discussed, and the results of a complete and end-to-end asynchronous and variable length optical packet-switched demonstrator are presented.