Modeling Step Index Fiber to Soliton Propagation
Step index fiber modeling process is carried out through numerical solving of eigen-value equation to calculate propagation constant for fundamental mod. Input data in the process is only index of refraction calculated from Sellmeier dispersive formula for appropriate mol percentage doping of germanium dioxide in silica glass fiber. Output data in the modeling process is optimal value of the normalized frequency, which guarantees that single mode operation region is equal to bright soliton propagation region. Final verification of the process is soliton generation up to sixth-order inside such modeled fiber. In this end nonlinear Schrodinger equation is solved numerically for initial condition of hyperbolic secant form.