Simulative Analysis of 10 Gbps High Speed Free Space Optical Communication Link

The increase in demand for high data transmission rates and channel capacity has led to the evolution of Free Space Optical (FSO) communication links. In this paper, performance analysis of a high-speed free space optical communication link has been observed. The performance of 10 Gbps FSO link has been evaluated on the basis of Q Factor, SNR ratio, and total power of the received signal for a link distance ranging from 800 m to 2000 m at different power levels of data transmission and different levels of atmospheric attenuation. It has been seen from the results that the value of SNR of received signal lies in the range from 45 dB to 14 dB and 48 dB to 10 dB for the transmission power of 6 dBm and attenuation of 25 dB respectively. Also, the value of the total power of received signal lies in the range of -52 dBm to -73 dBm and -30 dBm to -60 dBm for the transmission power of 6 dBm and attenuation of 25 dB respectively.