Impact of Travelling Wave Semiconductor Optical Amplifier on WDM-FSO System under Fog Attenuation

Free Space Optics Technology has emerged as a key technology for the development of communication system with intrinsic high level data security. Free Space Optics technology can cooperate with Wavelength Division Multiplexing technology to provide an advanced and robust communication network by establishing optical connectivity in multiple applications. The author is focusing on primary challenge to FSO channel based network, the effect of fog attenuation, on combined WDM-FSO system. The effort in this paper is to propose an appropriate solution to this problem by the addition of travelling wave semiconductor optical amplifier with WDM-FSO system. The whole system performance will be analyzed on FSO based 8 channels WDM network through evaluation of bit error rate and received power. Visualization of eye diagram and optical spectrum will also be used for performance analysis.