The Interaction Between Two Dark-soliton

Dark soliton have a lot of advantage that bright soliton does not have in fiber telecommunication . Go on research to be very much valuable to dark soliton. In the midst of soliton communication,The interaction between two solitons will result in distortion of wave.This will deduce to low transimission speed,destroy transimission indentity,shorten transimission distance.This thesis is divided two part to study the interaction between two dark doliton .in the part one ,use mini perturbtion and variation analytical method of mathematics separately mathmatics to analysize the interaction and the factor and dispersion which will influence the interaction between.the two dark soliton.in the part two ,The centre of the dark vetor soliton evolution equation is derived by means of particle analytical method equivalent from dark soliton's evolution equation in the photorefractive crystal, esceptialy between two dark soliton , The potential expression and it's numerically calculation is achieved。...