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In-line evanescent-field-coupled THz bandpass mux/demux fabricated by additive layer manufacturing technology
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Hernandez-Serrano, Arturo I., Leigh, Simon J. and Pickwell-MacPherson, Emma (2020) In-line evanescent-field-coupled THz bandpass mux/demux fabricated by additive layer manufacturing technology. OSA Continuum, 3 (9). pp. 2407-2414. doi:10.1364/OSAC.399389
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Official URL: http://dx.doi.org/10.1364/OSAC.399389
Abstract
In this research, we present the design, fabrication, and experimental validation of 3D printed bandpass filters and mux/demux elements for terahertz frequencies. The filters consist of a set of in-line polystyrene (PS) rectangular waveguides, separated by 100 µm, 200 µm, and 400 µm air gaps. The principle of operation for the proposed filters resides in coupled-mode theory. Q-factors of up to 3.4 are observed, and additionally, the experimental evidence demonstrates that the Q-factor of the filters can be improved by adding fiber elements to the design. Finally, using two independent THz broadband channels, we demonstrate the first mux/demux device based on 3D printed in-line filters for the THz range. This approach represents a fast, robust, and low-cost solution for the next generation of THz devices for communications.
| Item Type: | Journal Article | |||||||||
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| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TS Manufactures |
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| Divisions: | Faculty of Science > Engineering Faculty of Science > Physics |
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| Library of Congress Subject Headings (LCSH): | Additive manufacturing, Terahertz spectroscopy, Three-dimensional printing , Terahertz technology | |||||||||
| Journal or Publication Title: | OSA Continuum | |||||||||
| Publisher: | Optical Society of America | |||||||||
| ISSN: | 2578-7519 | |||||||||
| Official Date: | 25 August 2020 | |||||||||
| Dates: |
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| Volume: | 3 | |||||||||
| Number: | 9 | |||||||||
| Page Range: | pp. 2407-2414 | |||||||||
| DOI: | 10.1364/OSAC.399389 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Publisher Statement: | © 2020 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or commercial purposes, or modifications of the content of this paper are prohibited. | |||||||||
| Access rights to Published version: | Open Access | |||||||||
| Copyright Holders: | © 2020 Optical Society of America | |||||||||
| RIOXX Funder/Project Grant: |
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