The optical fiber has found great application in long distance communications, as light the medium of information transfer attenuates very less compared to electric pulses in cables. However the major issues that limit efficiency are chromatic dispersion and non-linear effects. Fiber Bragg Grating (FBG) is widely used as a component to compensate dispersion on account of its low insertion loss. This paper provides a method of using a combination of FBG as a dispersion compensator and Bessel filter to improve the Q factor of the system and also reduce the noise figure. A 10 Gb/s NRZ pulse is launched into the fiber and the performance of the system is evaluated using Optisystem simulator. The Q factor of the system is then investigated with and without use of Bessel filter. The simulation is analysed with respect to input power, fiber length, and attenuation coefficient. © 2006-2015 Asian Research Publishing Network (ARPN).