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Details of Grant 

EPSRC Reference: GR/R33823/01
Title: Terabit WDM Network (TWON) Testbed for Packet Network and Transmission Research
Principal Investigator: Bayvel, Professor P
Other Investigators:
Killey, Dr RI
Researcher Co-Investigators:
Project Partners:
Agilent Technologies Ltd Nortel
Department: Electronic and Electrical Engineering
Organisation: UCL
Scheme: Standard Research (Pre-FEC)
Starts: 01 October 2001 Ends: 30 June 2005 Value (£): 308,803
EPSRC Research Topic Classifications:
Optical Communications
EPSRC Industrial Sector Classifications:
Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
The proposed research Is to design and set up a terabit optical network testbed to enable theoretical and experimental investigation of the two most important aspects of future high-capacity optical network architectures, namely transmission and routing. Although optical switching offers significant advantages to speed up processing of high-speed multi-wavelength optical data there Is no optical equivalent of electronic random access memory and new architectures must be designed to minimise the amount of optical buffering. The work is aimed to demonstrate packet generation, synchronisation and scheduling in the absence of optical memory using the new concept of optical burst-switching and the more complex dynamic wavelength-allocation. Related to the routing and switching architecture is the question of optical transmission. In response to growing demand for data capacity, optical fibre transmission of multiple wavelength channels, modulated at very high bitrates (40 -160 Gbit/s per channel) is becoming increasingly important. However, the impact of Kerr fibre nonlinearities in a dispersive medium also increase with high channel powers and short optical pulses, resulting in reduced transmission distances and tight tolerances in dispersion compensation of the transmission medium. Yet the nature of the impact of these nonlinearities at very high modulation rates rates giving rise to distortion of transmitted pulses is not well understood. The proposed research focuses on a systematic theoretical and experimental investigation of multiwavelength transmission and will allow to define design rules for optimising high-capacity transmission.
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