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.
© 2007 IEEE
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