Analysis of optical waveguides with arbitrary index profile using an immersed interface method

Details Analysis of optical waveguides with arbitrary index profile using an immersed interface method Analysis of optical waveguides with arbitrary index profile using an immersed interface method

2011-01-12

arxiv.org/abs/1101.2394v1

Physics

Computational Physics

Scientific paper

A numerical technique is described that can efficiently compute solutions in interface problems. These are problems with data, such as the coefficients of differential equations, discontinuous or even singular across one or more interfaces. A prime example of these problems are optical waveguides and as such the scheme is applied to Maxwell's equations as they are formulated to describe light confinement in Bragg fibers. It is based on standard finite differences appropriately modified to take into account all possible discontinuities across the waveguide's interfaces due to the change of the refractive index. Second and fourth order schemes are described with additional adaptations to handle matrix eigenvalue problems, demanding geometries and defects.

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