Short bends using curved mirrors in silicon waveguides for terahertz waves
| Autor: | Mattias Verstuyft, Elias Akiki, Mathias Vanwolleghem, Guillaume Ducournau, Jean-François Lampin, Benjamin Walter, Fuanki Bavedila, Édouard Lebouvier, Marc Faucher, Bart Kuyken |
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| Přispěvatelé: | Universiteit Gent = Ghent University (UGENT), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Photonique THz - IEMN (PHOTONIQUE THZ - IEMN), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Vmicro SAS (Vmicro), Nano and Microsystems - IEMN (NAM6 - IEMN), Interreg (1.1.11), Fonds Wetenschappelijk Onderzoek (1S32518N). |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Optics Express Optics Express, 2022, 30 (5), pp. 6656-6670. ⟨10.1364/OE.447268⟩ OPTICS EXPRESS |
| ISSN: | 1094-4087 |
| Popis: | 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 degrees-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. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement |
| Databáze: | OpenAIRE |
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