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Article dans une revue Optics Express Année : 2022

Short bends using curved mirrors in silicon waveguides for terahertz waves

Résumé

Dielectric waveguides are capable of confining and guiding terahertz waves along sub-wavelength sized structures. A small feature size allows for a denser integration of different photonic components such as modulators, beam-splitters, wavelength (de)multiplexers and more. The integration of components on a small scale requires bending of the waveguides. In this paper we demonstrate a very short silicon 90°-bend, based on total internal reflection on an elliptically curved outer facet and a rounding of the inner corner joining two waveguides, with an average loss of 0.14 dB per bend in the 600-750 GHz range.
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Dates et versions

hal-03695019, version 1 (16-06-2022)

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Mattias Verstuyft, Elias Akiki, Mathias Vanwolleghem, Guillaume Ducournau, Jean-Francois Lampin, et al.. Short bends using curved mirrors in silicon waveguides for terahertz waves. Optics Express, 2022, 30 (5), pp. 6656-6670. ⟨10.1364/OE.447268⟩. ⟨hal-03695019⟩
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