OPTICAL PASSIVE NETWORK OF BUS STRUCTURE

摘要

Disclosed is a passive optical network of a bus structure. The passive optical network comprises a central office for wavelength-division multiplexing a plurality of time-division multiplexed downstream optical signals with mutually different wavelengths and receiving upstream optical signals, a plurality of remote nodes positioned in series on an optical path linked to the central office, and a plurality of optical network units for detecting a corresponding downstream channel and being linked with a corresponding remote node in order to transmit each upstream channel to the corresponding remote node, wherein each remote node splits a corresponding downstream optical signal into a plurality of downstream channels and transmits upstream channels to the central office by time-division multiplexing the upstream channels to an upstream optical signal.