Impact of fiber Bragg grating as dispersion compensator on optical communication systems

As a result of the tremendous development in the field of information transfer technologies and the progress in designing advanced optical systems to keep pace with it, it has become necessary to develop an advanced technique that preserves data during transmission and reception within these technologies without losing part of it. In this work, fiber Bragg grating (FBG) has been selected to overcome the dispersal problem in telecommunication systems. This is done utilizing OptiGrating (V.7) simulation software to design a uniform FBG with a Bragg wavelength of 1550 nm with different grating lengths (2,4, and 6) mm. Then, simulation software OptiSystem (V.7) was used to design the optical communication system with different link lengths (5-50) km to test the validity of the designed FBG’s. From the obtained simulation results, the values of the Q-factor, total power, and gain for the designed communication link are increased with increasing grating length. These parameters are equal to 265.83 dΒ, 12.363 dΒm, and 17.74 dΒ for Q-factor, total power, and gain, respectively, for communication link equal to 5 Km. These obtained parameter values decreased when increasing the length of the transmission link to 50 km.