A Novel Scalable Multistage DWDM PON Architecture Using Cascaded Optical Interleavers With Increasing Periodicities Controlled in Central Offices

Abstract

A new multistage scheme for dense wavelength division multiplexed passive optical networks (DWDM PON) is proposed. This scheme is realized by cascading optical interleavers with increasing periodicities. Downstream transmission of a DWDM comb consisting of four 10 Gb/s channels is demonstrated in the proposed multistage network. We also show a scheme to provide upstream transmission. Experimental results show that this technique has the potential to support many groups of customers located at various distances from the central office.

Wavelength sharing in WDM passive optical networks

“…However, the performance of the spectrally sliced broadcast channel is not compelling. Various other approaches have been proposed, including multistage W-PON [4] and interleaved W-PON [5].…”