Patent ID: 9559802
Date: 2017-01-31
CPC Classifications: H04B,H04J

Claim:
1. An optical network node comprising: a first node input configured to receive a first multiplexed optical signal being time division multiplexed at a first time or wavelength division multiplexed at a second time different than the first time; a second node input configured to receive a second multiplexed optical signal; node outputs, each configured to output a separate replicated or demultiplexed optical signal, the node outputs comprising first and second groups of node outputs; an optical filter optically coupled to the first node input; a first optical power splitter having a first splitter input and first splitter outputs, the first splitter input connected to the optical filter, the optical filter configured to filter time division multiplexed signals to the first optical power splitter, the first splitter outputs directly coupled to the first group of node outputs, the first optical power splitter replicating the first multiplexed optical signal, when the first multiplexed optical signal is time division multiplexed; a second optical power splitter having a second splitter input connected to the second node input and second splitter outputs directly coupled to the second group of node outputs, the second optical power splitter replicating the second multiplexed optical signal, when the second multiplexed optical signal is time division multiplexed; and an arrayed waveguide grating having a grating input and grating outputs, the grating input connected to the optical filter, the optical filter configured to filter wavelength division multiplexed signals to the arrayed waveguide grating, the grating outputs directly coupled to the first and second groups of node outputs, the arrayed waveguide grating demultiplexing the first multiplexed optical signal, when the first multiplexed optical signal is wavelength division multiplexed.