Realization of Inter-satellite Optical Wireless Wavelength Division Multiplexed System with Polarization Interleaving for LEO, MEO, and GEO Satellites

In the realm of increasing demand for stable and excellent connectivity around the world, researches are done heavily to boost up the connectivity and transmission distance. Therefore, in this research work, we have made the realization of an inter-satellite optical wireless channel, wavelength division multiplexed system implemented with polarization interleaving technique in order to realize an 8-channel system capable of transmitting data rate of 20 Gbps per channel for the transmission distance of LEO, MEO, and GEO satellite orbits. The designed system is capable of data transmission with mitigated channel non linearities and acceptable SNR, BER, and Q-factor for the transmission distance of 40,000 km, 10,000 km, and 5000 km covered under the geostationary equatorial orbit, medium earth orbit, and low earth orbit, respectively. The system realized here is also considered to work efficiently under 1 µ radian to 3 µ radian transmitter and receiver pointing error losses. Optimal results can be observed on the basis of transmitted and received optical power spectrum, SNR values, total power received, eye-opening diagrams, BER, and Q-factor.