SYNCHRONIZATION FOR PASSIVE OPTICAL NETWORKS

There is widespread interest in the passive optical network as a solut ion for a future fiber in the loop network. This paper addresses the p roblem of synchronization at the line termination of a passive optical network that uses high-speed time division multiple access. Synchroni zation is a critical function since each ATM cell arrives with unknown phase. An ASIC has been developed to perform this function at 622 Mb/ s and is outlined here.