Modelagem da propagação não linear em fibras opticas : sistemas de transmissão de dados e amplificadores / Modeling non linear propagation in optical fibers : data transmission systems and optical parametric amplifiers

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

We introduce optimized models and algorithms for the simulation of non linear propagation in optical fibers using the split-step Fourier Method (SSFM). Dispersion and the Kerr effect are the two main effects considered in the simulations. We study the coupled equations, considering both polarization modes, as well as the scalar equation, which can be applied when the scalar approximation holds, as in isotropic fibers with all fields linearly polarized and parallels. We show that the method that we propose to solve the scalar equation is orders of magnitude faster than other methods recently introduced in the scientific literature for modeling transmission systems. In the coupled-equations case, we show that the proposed method gives accurate results for the modeling of parametric amplifiers, and use it to validate an analytical six-wave model that we developed. We also use the method for the coupled-equations to study the effects of randomly varying birefringence on parametric amplifiers gain, showing the importance of the accurate modeling of these fluctuations. All the codes developed in this thesis are available for download and distributed under a creative commons license in an internet site created specifically for this purpose

ASSUNTO(S)

equação não-linear de optical fibers fibras oticas parametric amplifiers schrodinger non-linear schrodinger equation amplificadores parametricos otica não-linear non-linear optics

ACESSO AO ARTIGO

Documentos Relacionados