WDM-RoF-PON Architecture for Flexible Wireless and Wire-Line Layout

Abstract

We experimentally demonstrate what we believe to be a novel wavelength division multiplexing–passive optical networking (WDM-PON) architecture compatible with 60 GHz radio-over-fiber systems to simultaneously provide wireless or wired services. We place each wireless/wire-line channel in one WDM slot to carry a 2.5 Gb∕s orthogonal frequency division multiplexing (OFDM) signal and reuse downstream wavelengths of the wireless and wire-line channels for uplink by an on–off-keying modulation format signal. For the independent design for wireless and wire-line channels, the layouts of wireless or wire-line channels are flexible for different applications.