Performance and Analysis of Solitons in Optical Domain

Abstract

From the stripes of a zebra, to the spirals of cream in a hot cup of coffee, we are surrounded by patterns in the natural world. But why are there patterns? Why drives their formation? In this thesis we study some of the diverse ways patterns can arise due to the interactions between solitary waves in nonlinear systems, sometimes starting from nothing more than random noise. What follows is a set of three studies: In the first study,we study about solitons as what soliton is?From where it is generated,soliton types and optical solitons. In the second study,we study about spatial solitons,soliton properties such as diffraction and kerr effect. In the third study,we study as what will happen when number of soliton pulses having same phases interact with each other as the interaction enhances the refractive index at the point where they meet or not. This enhancement depends on the intensities of the participating pulses individually. This character can be exploited very nicely in long distance remote switching through optical fiber. The change of refractive index in optical fiber media by interaction between two or among more numbers of soliton pulses can lead leakage of light from the fiber at the interaction point. Many other similar incidences can be organized by this interaction and these can be directly utilized in long distance switching. Optical logic operation can be conducted from a long distance if the interaction can be organized properly. We can see also from the above discussion that the change of refractive index will not depend at all of the frequencies of the carrier waves of the interacting soliton pulses. [iii] In the final study,we study about soliton systems & find out the results of various soliton systems with the help of Optisystem simulation software. [