Analytical model for polarization-dependent light propagation in waveguide arrays and applications

作者：Rojas Rojas S^*; Morales Inostroza L; Naether U; Xavier G B; Nolte S; Szameit A; Vicencio R A; Lima G; Delgado A

来源：Physical Review A, 2014, 90(6): 063823.

DOI：10.1103/PhysRevA.90.063823

We study the polarization properties of elliptical femtosecond-laser-written waveguide arrays. An 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.

• 出版日期2014-12-15