Bidirectional WDM-OOFDM access network based on a sliceable optical transceiver with colorless ONUs

A WDM-OOFDM access network using a centralized optical transceiver based on a single optical broadband sliced source at the Central Office is presented as a low cost solution. Such network offers downlink and uplink signal transmission by using double sideband modulation and optical carrier re-use, as well as dynamic bandwidth allocation, multiple band selection and tunable OFDM band selection in reconfigurable networks at moderate bitrates.