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20 September 2020 Frequency multiplexing/demultiplexing using additive-manufacturing-based devices for terahertz networks
A. I. Hernandez-Serrano, Simon J. Leigh, Emma Pickwell-MacPherson
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Proceedings Volume 11541, Millimetre Wave and Terahertz Sensors and Technology XIII; 115410F (2020) https://doi.org/10.1117/12.2573458
Event: SPIE Security + Defence, 2020, Online Only
Abstract
In this research, we present the design, fabrication and experimental validation of 3D printed mux/demux elements for terahertz frequencies. The devices 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 elements resides in coupled-mode theory. Q-factors of up to 3.4 are observed, and additionally, the experimental evidence demonstrates that adding fibers to the design improves the Q-factor by up to 0.62 per fiber added. 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.
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A. I. Hernandez-Serrano, Simon J. Leigh, and Emma Pickwell-MacPherson "Frequency multiplexing/demultiplexing using additive-manufacturing-based devices for terahertz networks", Proc. SPIE 11541, Millimetre Wave and Terahertz Sensors and Technology XIII, 115410F (20 September 2020); https://doi.org/10.1117/12.2573458
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KEYWORDS
Terahertz radiation
3D printing
Additive manufacturing
Multiplexing
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