Reach Enhancement of Designed Free Space Optical Communication System Using Hybrid Optical Amplifier.

Free space optical (FSO) communication is coming up as an attractive alternative to solve the connectivity hindrances. It is an efficient optical technology having several advantages such as narrow beam size, unlicensed spectrum, high reliability, huge modulation bandwidth, low power and higher grade of security. In this paper, we have proposed an FSO communication system model using EDFA-EDFA hybrid optical amplifier (HOA) configuration which provides enhanced reach and higher data rate. For transmitting channel, weak turbulence approximation which exhibits log-normal statistics is considered. Q-factor, bit error rate (BER) and Eye diagram have been taken as performance metrics. From simulative results, it has been observed that the designed FSO communication system efficiently enhances the transmission reach from 1,000 to 5,000 m along with a substantial improvement in Q-factor and BER. [ABSTRACT FROM AUTHOR]