Optical Soliton Transmission System

Performance analysis is carried out to evaluate the effect of XPM on a Dispersion Managed (DM) 40Gb/s optical soliton transmission using direct detection, in the presence of Group Velocity Dispersion (GVD), Self-Phase Modulation (SPM), and Amplified Spontaneous Emission (ASE) in this chapter. It is found that for a distance of 2000 km, a power penalty of 1.9 dB is required to achieve a BER of 10-9 when XPM is taken into consideration. This power penalty increases with increasing neighbouring channel power and decreases with increasing channel separation. The system performance is also shown to be dependant on the system dispersion whereby the optimum dispersion is linked to the channel input power.

SOLITON PROPAGATION IN NONUNIFORM OPTICAL FIBERS

In this paper, we construct the Lax pair for a soliton transmission system in nonuniform optical fibers and give N-soliton solution using the Darboux transformation. The explicit one-soliton and two-soliton solutions are presented. Further, we discuss the interaction scenario between two neighboring solitons and the effect of the inhomogeneities of the fiber (z0) on the interaction between two neighboring solitons.