This research aims to study and design a single mode optical fiber using simulation,
with a core and glass cladding, and also helps in ensuring the efficiency to use the optical
fiber designed within the broading window C-Band,and that these resear
ches and studies
tries to use this window. This research also shares to set the light on the Numerical
Programmes and Simulation used now in studying and designing these optical fibers. At
first we used the programOptifiberto reach the confidence of Sellmeier equation for the
fiber core, and this completed by using the finite element method solving the equation of
propagation the electric field and finding its 3-D distribution, using the famous simulating
COMSOLMultiphysics. This completed by putting the program MATLAB to reach the
two equation: the total dispersion and attenuation for the designed optical fiber.
The work includes the development of a program in an advanced – programming
language. to solve two none linear related partial differential equation that form a
mathematical model that describes the dynamic status of laser ,so that we can study the
properties of radiation density through this type the related program ,as well as the
population inversion inside the homogeneous medium of laser . We have studied the
strength f the out put power as well as the population inversion in the case of pulse –
working of the solid state laser Nd:YAG and the population inversion change as a function
of the diameter and length of the effective medium of laser .
The aim of this study is to study the possibilities of obtaining materials with a material
shift to the higher wavelengths that fall within the C-Band window currently used in fiber
optic communication systems. This is done by mixing pure SiO2 with
different materials
and different percentages. We find the evidence of refraction of the core material in an
optical fiber and study the change of these clues by sequential wavelength of light from the
solimer constants obtained from the OptiFiber program. We then calculated the physical
dispersion factor DM for each of the studied materials by writing a special matlab program
for this study and thus studying the change in the physical dispersion of these materials by
the sequential wave length.
