An Integrated Radio-over-fiber and Passive-optical-network for Bidirectional Photonic Accesses

摘要

A bidirectional transmission system based on Radio-over-fiber (ROF) and Passive Optical Network (PON) technology is proposed and demonstrated. In this paper, a local oscillator with 15GHz via first Mach-Zehnder modulator (MZM1) and 1.25-Gb/s data via second Mach-Zehnder modulator (MZM2) generate double sideband (DSB) signal. The DSB signal is separated by fiber bragg grating (FBG) into two optical downstream signals. One is the central carrier; the other is the subcarrier, which transports from optical line terminal (OLT) to base station (BS) by 25km single-mode fiber (SMF) transmission. The power penalty of the system is < 0.1 dB (central carrier for downlink and uplink), downlink and uplink transmission of BER values are lower than 10~(-9).