Experimental investigation on novel dense wavelength division demultiplexer

A novel type of 16-channel,100GHz spaced dense wavelength division demultiplexer,composed of 100GHz optical interleaver and 200GHz dielectric filters is presented,which can easily meet the demand that the amount of demultiplexed wavelengths gets larger and the spacing of them gets narrower.An optical interleaver is used to enlarge the spacing of demultiplexed channels,and several 200GHz dielectric filters are cascaded on the output of interleaver to separate the different wavelengths.The experimental results show that this device has excellent performances and suits the upgrade of dense wavelength division multiplex(DWDM) systems.