Full 40 Gbit/s OTDM to WDM conversion: simultaneous four channel 40:10 Gbit/s all-optical demultiplexing and wavelength conversion to individual wavelengths

40 Gbit/s signals are simultaneously all-optically demultiplexed and wavelength converted into four 10 Gbit/s channels of individual wavelengths with a penalty below 1.5 dB,using only one monolithically integrated Mach-Zehnder interferometer with semiconductor optical amplifiers.