A new model for waveguide light propagation and applications: tuning light distribution in elliptical waveguide arrays and a compact deterministic 50: 50 PBS (original) (raw)

We study the polarization properties of elliptical femtosecond-laser-written waveguides arrays. A new analytical model is presented to explain the asymmetry of the spatial transverse profiles of linearly polarized modes in these waveguides. This asymmetry produces a polarization dependent coupling coefficient, between adjacent waveguides, which strongly affects the propagation of light in a lattice. Our analysis explains how this effect can be exploited to tune the final intensity distribution of light propagated through the array, and links the properties of a polarizing beam splitter in integrated optical circuits to the geometry of the waveguides.

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A new model for waveguide light propagation and applications: tuning light distribution in elliptical waveguide arrays and a compact deterministic 50: 50 PBS (original) (raw)

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