… Abstract: To provide dedicated downstream and upstream transmission with direct ONU
interconnection, a WDM-PON architecture is proposed. This offers efficient bandwidth …

… The time wavelength division multiplexing (TWDM-PON) can … If the TWDM-PON is applied
to serve as the middle-haul to … to provide direct interconnect among DUs (DUI) if each ONU is …

… It has become the basic building blocks of WDM PON’s. In most … two integrated optical star
couplers interconnected by an array of … CO-to-ONU mean distance in a WDM-PON is 1.57 km, …

… WDM PON and hybrid WDM/TDM PON. Similar to the existing schemes in [2] and [3], our
scheme has a relatively simple ONU … 2) it uses simpler fiber interconnections; 3) it improves the …

… interconnected PONs. The second version consists of an interconnection of multiple PONs
where each ONU is … Alternatively, the authors of [16] proposed a new WDMPON in which each …

… WDM-PON system, focusing on the colourless ONU’s uplink signal transmission. This system
is utilizing a software controlled tunable transceiver in both OLT and ONU… interconnections …

… A WDM PON in which each upstream wavelength channel can … The interconnection of
multiple PONs of arbitrary topology … we can allow for arbitrary ONU WDM node structures, it is …

… studied to realize dense interconnection between the small … -haul network configuration
using PON, ONU is placed in each … and wavelength division multiplexing-PON (TWDM-PON), …

… Thus, the corresponding interconnection fiber between port 2 of … ONU and OLT in both the
TDM-PON and hybrid WDM/TDM-… the WDMPON supporting 32 users and its upgrade to WDM-…

… are regarded as one group and connected together by the interconnection fiber. In [6], the
… If we assume that the fiber between ONU k + 1 and ONU k + 2 fails, as shown in III place in …