Long Range and Low Cost WDM OWC System Based on Hybrid Configuration of Optical Amplifiers

To its unrestricted wide bandwidth, immunity to electromagnetic interference, and much higher achievable data rates than RF, optical wireless communications (OWC) is a viable alternative for both inside and outside high-speed wireless access. Free space optical (FSO) systems, also known as terrestrial point-to-point OWC systems, operate at near-IR frequencies (750-1600nm). These laser-based systems provide a low-cost framework link with high data rates (up to 10 Gbit/s) and could be a solution to the high bandwidth constraint. In this study, wavelength division multiplexing (WDM) is employed to increase signal strength using optical amplifiers, resulting in a better signal at the receiver. A WDM OWC system based on hybrid optical amplifier configurations is suggested, which offers a viable option for low-cost and high-efficiency systems.