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

S. Rojas-Rojas, L. Morales-Inostroza, U. Naether, G. B. Xavier, S. Nolte, A. Szameit, R. A. Vicencio, G. Lima, A. Delgado
2014 Physical Review A. Atomic, Molecular, and Optical Physics  
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
more » ... ght propagated through the array and links the properties of a polarizing beam splitter in integrated optical circuits to the geometry of the waveguides.
doi:10.1103/physreva.90.063823 fatcat:vefvgybh7jd3hemih4fry2k2lq