Oblique incidence of semi-guided planar waves on slab waveguide steps: effects of rounded edges.

@article{Ebers2018ObliqueIO,
  title={Oblique incidence of semi-guided planar waves on slab waveguide steps: effects of rounded edges.},
  author={Lena Ebers and M. Hammer and J. F{\"o}rstner},
  journal={Optics express},
  year={2018},
  volume={26 14},
  pages={
          18621-18632
        }
}
Oblique propagation of semi-guided waves across slab waveguide structures with bent corners is investigated. A critical angle can be defined beyond which all radiation losses are suppressed. Additionally an increase of the curvature radius of the bends also leads to low-loss configurations for incidence angles below that critical angle. A combination of two bent corner systems represents a step-like structure, behaving like a Fabry-Perot interferometer, with two partial reflectors separated by… Expand
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