500 Gbit/s optical gate monolithically integrating photodiode and electroabsorption modulator

Optical demaltiplexing at a corresponding data rate of 500 Gbit/s has been achieved using an ultrafast monolithic optical gate integrating a photodiode and an electroabsorption modulator. The on/off ratio is 9 dB for adjacent channels and larger than 20 dB 6cr other channels.