Transparent Ring Interconnection Using Multi-wavelength Photonic switches20 Subsystems for optical router WDM to OTDM –ADORE appears feasible and cost effective Wavelength conversion –Not required –2R regeneration would be of benefit Clock recovery –See WP3 WDM to OTDM –Difficulties experienced which require understanding of pulse quality / cross talk trade offs –Refined design using NPR imminent
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