Optimization of Radio over Fiber Transmission over Polarized Conversion Light Using SOA

This paper investigates an optimization of the quality factor (Q) performance in terms of the input optical power signal of the system and the electrical injection current in the semiconductor optical amplifiers (SOAs). Two different binary phase shift keying (BPSK) formats at 10 Gbps data rate are modulated at a radio frequency (RF) of 10 GHz. The RF signals are externally modulated via two Mach-Zehnder modulators (MZMs) at a wavelength of 1440 nm horizontal and vertical polarized light. Then, a wavelength conversion utilizing two SOAs converts the RoF signals from 1440 nm to 1550 nm. The variations in Q factor, BER and eye opening with respect to the SOA current, bit rate and fiber length using Optisystem 7 simulation software are investigated.