In this paper, a crucial factor affecting how well optical fiber communication technologies work is dispersion. It results in poor bit rate, pulse broadening, and transmission distance limitations. Fiber with dispersion compensation (DCF) and fiber Bragg grating (FBG) are widespread used in the dispersion compensation scheme. Using the Opti System 20.0 simulator, a model transmission system has been examined on the basis of various factors. There are two suggested dispersion compensation schemes (DCF and FBG). Three parameters—the Q-factor, BER, and eye height examined at the receiver end—will be used to discuss the outcomes of the two dispersion compensating approaches. There is inverse relationship between the bit error rate (BER) and the wavelengths, as it decreases clearly and significantly and gives the best performance quality at the window (1500–1600 nm), especially at the operational wavelength (1550 nm), but the bit error rate (BER) starts to increase gradually when you cross this window. The relationship is proportional between the bit error rate (BER) and the data rate, yes, gives somewhat good performance in both cases, but it increases clearly and significantly at low data rates, and this is well noticed with the best performance quality at window (1500–1600 nm), especially at length operational waveform (1550 nm), but the bit error rate (BER) starts to increase gradually when you cross this window. The relationship is proportional between the eye height and the wavelengths, as it increases clearly and significantly and gives the best performance quality at the window (1500–1600 nm), especially at the operational wavelength (1550 nm), but the eye height starts to drop gradually when you cross this window. In addition, variable compensating techniques will result in variable transmission performances for the system. Compensation technique improves the system performance much better than the DCF technique. Moreover, the characteristics of the FBG and the fiber that used for the compensation process depends on the characteristics of the optical fiber that is used for the transmission in system. It is shown that the best performance comes from symmetrical compensation, then post-compensation.