Collision properties of rogue waves in optical fiber

In this paper, we study the collision properties of rogue waves in optical fiber theoretically. Based on the triplet solution of the nonlinear Schrodinger equation with two parameters, the factors that affect the initial conditions of colliding rogue waves are discussed. Meanwhile, the variation dynamics of peak intensity in collision is studied with each parameter, and the approximate formula of this variation law is derived by drawing an analogy between the collision of rogue waves and that of classical particles, which is consistent with the numerical results. The variation with both two parameters is also discussed, which is found the abnormal behavior of peak intensity in this case. This effect can be potentially used to generate rogue waves with higher peak intensity in optical fiber, which is confirmed by our simulation results.