Performance Analysis of Cascaded FBGs at 10 Gbps with Different Dispersion Compensation Techniques

Over long transmission distances, the use of an erbium-doped fiber amplifier (EDFA) reduces attenuation in the information signal. In addition to single-mode fiber (SMF), other dispersion reduction technologies are required today to achieve higher transmission ranges at higher data rates. Some common techniques for reducing dispersion effects in fiber-optic communications are dispersion compensated fiber (DCF) and fiber Bragg gratings (FBG). This paper describes different types of DCF techniques using cascaded uniform and chirped FBGs. The Opti system 7.0 software is used to compare the results of DCF technology for pre, post, and balanced fiber arrangement with and without cascaded FBGs at a rate of 10 Gbps on a 120 km SMF.