Optimization of 4 × 10 Gbps WDM-FSO System Incorporating Gain Flattening Filter

Rapidly expanding internet information traffic currently has exhilarated rising demand for high user access transmission bandwidth. With respected existing bandwidth accessible for future optical network, a significant problem to resolve is growing modern techniques for effective utilization of system bandwidth resources. A 4 × 10Gbps wavelength division multiplexing (WDM) and free space optics (FSO) system utilizing gain flattening filter is realized. The maximum range of 100km is obtained at aggregate 40Gbps throughput via simulation analysis. Also, received power of −24dBm is obtained w.r.t. input power of 7.13dBm. The proposed system illustrates wide open eye pattern compared to existing ones.