Details of Grant 

EPSRC Reference:	GR/L28487/01
Title:	10 GB/S BIT ERROR RATE TEST SET FOR PHOTONIC SYSTEMS AND NETWORKS RESEARCH
Principal Investigator:	Bayvel, Professor P
Other Investigators:	Midwinter, Professor J Seeds, Professor AJ
Researcher Co-Investigators:
Project Partners:	BT Nokia Nortel Pre Nexus Migration Traffic Systems International Ltd
Department:	Electronic and Electrical Engineering
Organisation:	UCL
Scheme:	Standard Research (Pre-FEC)
Starts:	01 April 1997	Ends:	31 March 2000	Value (£):	191,458
EPSRC Research Topic Classifications:	Optical Communications
EPSRC Industrial Sector Classifications:	Communications
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Summary on Grant Application Form
This application, made jointly by UCL and Aston University, is for equipment only and is for provision of a 10 Gbit/s bit error rate test set to be used to expand the capabilities for high speed photonic systems and network research. The UCL programme, in collaboration with Nortel, Corning, BT Alcatel and GPT, concentrates on the investigation of densely spaced (subnanometre), optically amplified wavelength-routed optical networks (WRONs), currently of great interest. Their design depends on the granularity of wavelength-coding (2.5-10Gbit/s and beyond) and the evolution scenarios which must be taken into account at the design stage. Using the recirculating-loop WRON test bed, we propose to investigate the limitations due to Kerr fibre and EDFA nonlinearities in WRONs under realistic add-drop conditions for various dispersion management scenarios, and the effect of different bit-rates in neighbouring channels. The application of novel wavelength-selective components designed at UCL: namely aberration-corrected free-space grating demultiplexers and fibre-grating lasers will be evaluated at 10 Gbits/s. The results will define optimum design rules for future-proof WRON architectures and key wavelength selective components, and provide input to our theoretical work on modelling of (1) WR and allocation algorithms and (2) fibre nonlinearities using a realistic EDFA model. The proposal also supports our soliton transmission work.
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