Orthogonal wavelength-division-multiplexing using SSFBGs in passive optical networks

We propose a novel scheme of orthogonal wavelength-division-multiplexing (WDM) using superstructure fiber Bragg gratings (SSFBGs) as a square pulse shaper in passive optical networks (PONs). The system supports large numbers of subscribers by the orthogonal interleaving of the sinc-shaped spectrum from each channel and expends the capacity.