Bidirectional visible light wireless transmission supported by reflective semiconductor optical amplifier based optical access network

Abstract

remote location. Also, the system can be further optimized if operating at different wavelengths or with a higher power laser. By moving to a different wavelength such as 1300 or 1550 nm, the PD slope efficiency and the fiber loss can be improved. Moreover, a higher power laser ($20 mW) [8] with sufficient linearity and bandwidth could result in higher output power and consequently, the system can operate indefinitely. ABSTRACT: We propose the visible light communication (VLC) system based on optical access network using white light emitting diode (LED) and reflective semiconductor optical amplifier (RSOA). The RSOA is employed as an optical network unit (ONU) in order to be connected with VLC link based on white LED and photo diode (PD). The proposed architecture is demonstrated experimentally and its performance is verified through the experimental investigation of quality-factor (Q-factor) and eye pattern up to 20 Mb/s data. The variation of performance is shown depending on both the existence of the ambient light and the distance between the LED and PD. A 20 Mb/s downlink and uplink transmission is demonstrated in 23-km single mode fiber (SMF) and 100 cm long wireless channel experimentally.