Novel schemes for local area network emulation in passive optical networks with RF subcarrier multiplexed customer traffic

Abstract

This paper proposes two novel optical layer schemes for intercommunication between customers in a passive optical network (PON), The proposed schemes use radio frequency (RF) subcarrier multiplexed transmission for intercommunication between customers in conjunction with upstream access to the central office (CO) at baseband. One scheme employs a narrowband fiber Bragg grating (FBG) placed close to the star coupler in the feeder fiber of the PON, while the other uses an additional short-length distribution fiber from the star coupler to each customer unit for the redirection of customer traffic. In both schemes, only one optical transmitter is required at each optical network unit (ONU) for ..