Currently, fiber-optic communication becomes increasingly important in the industry. However, to ensure high data rates it is crucial to overcome the negative effects of material dispersion caused by the dependence of the phase velocity of a wave on its frequency. Phase dispersion in optics causes the spatial separation of a light pulse into components with different group delay. In our studies we applied an approach that allowed to model the propagation of an optical pulse throughout the fiber by an equivalent linear system with frequency dispersion and its associated frequency and impulse responses. Paper presents the findings of the research into the effect of changing dispersion parameters on optical pulse distortions by increasing the length of the fiber with the third-order and the second-order material dispersion.
The paper presents the findings of the research into the effects of material dispersion in an optical fiber link. The general framework of normal and anomalous dispersion of the second and third orders were formulated by means of a principle of equivalence. The approach to the problem is based on a method of transforming a frequency response of an equivalent liner system into its impulse response with the use of a dispersion characteristic. This approach was used to thoroughly consider the effects of chirping, soliton (stable) propagation and collapse of solitons.
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