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Experimental investigation of an optical cross-connect including wavelength converters

The paper demonstrates a 4 X 4 optical cross-connect architecture including a micro-mechanical switch module and a wavelength conversion module. Three channel of 622 Mbit/s signals and a channel of 2.5 Gbit/s signal are generated and cross-connected. The 2.5 Gbit/s signal has been converted for a wavelength down-shift of 19.4 nm. After 28.4 km non-zero dispersion shift fiber propagation, the bit error rate is below 10-12.