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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 ISSN 2578-7519.

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Official URL: http://dx.doi.org/10.1364/OSAC.399389

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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
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TS Manufactures
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Faculty of Science, Engineering and Medicine > Science > Physics
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:
DateEvent
25 August 2020Published
8 July 2020Accepted
Volume: 3
Number: 9
Page Range: pp. 2407-2414
DOI: 10.1364/OSAC.399389
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): © 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 (Creative Commons)
Copyright Holders: © 2020 Optical Society of America
Date of first compliant deposit: 12 August 2020
Date of first compliant Open Access: 24 September 2020
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
Wolfson Merit AwardRoyal Societyhttp://dx.doi.org/10.13039/501100000288
EP/S021442/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266

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