In this paper, we discussed on Four-wave-mixing (FWM) based wavelength conversion at 1.55 µm and 1.552 µm using six different types of commercial optical fibers. For a pump peak power of 6.2W, a numerical simulation is used to predict the performance of each type of fibers for different experimental conditions and to address the potential of each fiber type in wavelength conversion applications utilizing four-wave-mixing. It is shown that wavelength conversion, covering the entire C-band, can be achieved with different performance for each type of optical fiber at reasonable optical pump power. The simultaneous wavelength conversion of two different formats or bit-rate optical signals, with low input power, is demonstrated in a highly nonlinear optical fiber with a single strong continuous-wave pump. The effect of four-wave-mixing at highly nonlinear optical fiber is analyzed at 1 km distances with its power. The Four Wave Mixing is analyzed in non-degenerate mode for wavelength conversion. Index Terms-Four wave mixing (FWM), MZI modulator, SMF-28 single mode fiber, Positive dispersion non-zero dispersion-shifted fiber (LEAF), Negative dispersion non-zero dispersion-shifted fiber (METRO), Dispersion compensating fiber (DCF), Vascade Optical fiber (Sea Cable).