Purpose. To study the effect of the chirp on solitons interaction. Methodology. To assess the influence of the chirp on solitons interaction, our study is focused on fundamental solitons mod elled by the famous Nonlinear Schrodinger Equation (NLSE) and simulated using Fast Fourier Transform. Firstly, we discuss the influence of the chirp by setting different values of group velocity dispersion (GVD) of one fundamental soliton. Secondly, we in troduce the chirp on two fundamental solitons close enough to create Kerrinduced nonlinearity and in the absence of GVD we study its impact on their interaction. Finally, we apply the chirp for two fundamental solitons with different phases, amplitudes and order of solitons to compare its impact on interactions in all cases possible.findings. The chirp is useful to delete the interactions in the absence of GVD. originality. The originality is to use the chirp without GVD to separate two solitons that are subject to attraction or repulsion.Practical value. This study illustrates that with the parameter of the group velocity dispersion b 2 = -25 ps 2 /km and a chirp pa rameter equal to C 1 = 0.5 or C 2 = -0.5 (C 1 , C 2 are the chirp coefficients of the first and the second solitons respectively) an addi tional periodic compression is obtained. Later, we gradually decrease the GVD until its nullification; here we find a regular com pression instead of the periodic one. Lastly, we study the influence of the chirp parameter on two adjacent fundamental solitons for the chirp parameter C = 2, 3 and 4 with different values of the bit rate t = 2 and 3. Finally, we vary the initial parameters of the solitons such as the phase, the amplitude and the order of the solitons.