Demonstration of 40 Gbit/s optical packet synchronisation using fibre Bragg gratings and fast-tunable wavelength converters

A method of all-optical synchronisation is proposed and demonstrated at 40 Gbit/s. Based on pre-programmable fibre Bragg grating array and fast-switched widely-tunable wavelength converters, negligible power penalty is achieved up to 1 /spl mu/s delay as well as 100% layer 2 throughput.