We present a design of a slot waveguide in which the core layer is orthogonally slotted to form a rectangular sub-core. While the overall guiding and coupling efficiency remains the same as a conventional slot waveguide, the field confinement is enhanced and appears two-dimensional. The waveguiding is controllable by selecting the intermediate index as well as various geometrical parameters. In addition, by changing different variables, the linear/nonlinear dispersion and birefringence can be tailored with extended ranges. Constant-dispersion points, where the dispersion is insensitive to size changes, are also demonstrated.
CITATION STYLE
Xiao-Li, Y. (2010). Light guiding in a slot waveguide that includes an additional confining core region. Optics Express, 18(6), 6408. https://doi.org/10.1364/oe.18.006408
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