Inter-Satellite Optical Wireless Communication (IsOWC) System Analysis for Optimizing Performance between GEO and LEO Satellites

Free-space optical (FSO) communication importance has increased during the last two decades, presenting its unique features like license-free spectrum, high data rate, ease of deployability, and low power consumption. Moreover, In the future, communication between different space orbits like Low Earth Orbit (LEO) and Geostationary Earth Orbit (GEO) satellites will be widely established by utilizing Inter-Satellite Optical Wireless Communication (IsOWC) systems that allow GEO satellites to relay information to and from LEO satellites and fixed Earth stations, otherwise, information will not be permanently relayed. IsOWC systems are the most important application of the FSO and they will be preferred shortly because of their features. In this paper, we test the IsOWC system by varying some parameters that have a significant influence on the IsOWC link such as wavelength, Pulse generator at the transmitter side, and photodetector type at the receiver side to obtain the maximum Quality factor at minimum allowable bit error rate (BER) utilizing IsOWC between LEO and GEO satellites up to 45000 km link.