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SELECTABLE MULTIPLE-WAVELENGTH ACCESS FOR OPTICAL NETWORK UNITS IN ARRAYED WAVEGUIDE BASED WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK
SELECTABLE MULTIPLE-WAVELENGTH ACCESS FOR OPTICAL NETWORK UNITS IN ARRAYED WAVEGUIDE BASED WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK
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机译:基于阵列波导的波分复用无源光网络中光学网络单元的可选多波长访问
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摘要
An optical network unit (ONU) accesses services provided by multiple optical line terminals (OLTs) in a wavelength division multiplexing (WDM) passive optical network (PON). The ONU receives downstream signals from a first plurality of OLTs through a designated port of an arrayed waveguide (AWG). At any given time, the bandpass filter module can select any one of a first plurality of AWG cycles allocated to the first plurality of OLTs. Based on received downstream signals, the ONU transmits upstream signals to a second plurality of OLTs through the designated port of the AWG. At any given time, the bandpass filter module and a transmitter of the ONU can select any one of a second plurality of AWG cycles allocated to the second plurality of OLTs. The ONU may be configured with a plurality of receivers and transmitters, whereby it is enabled to simultaneously subscribe to a plurality of AWG cycles.
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