Single-mode propagation in triangular tube lattice hollow-core terahertz fibers |
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Authors: | L Vincetti |
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Institution: | Dipartimento di Ingegneria dell’Informazione, University of Modena and Reggio Emilia, Via Vignolese 905/b, I-41100 Modena, Italy |
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Abstract: | The mode properties of hollow-core fibers with a cladding formed by a periodic arrangement of dielectric tubes in a triangular lattice for THz applications are numerically investigated. The fiber supports a high number of modes. Effectively single-mode operation can be obtain by reducing the core size, but at the expense of high fundamental mode propagation loss. Single-mode propagation can be obtained by exciting the fiber with a linear polarized gaussian beam with proper spot size. |
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Keywords: | Terahertz (THz) waveguides Hollow-core fibers Microstructured fibers |
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