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ORIGINAL RESEARCH article
Front. Phys.
Sec. Optics and Photonics
Volume 13 - 2025 | doi: 10.3389/fphy.2025.1560320
Multi-nested anti-resonant fiber with ice-cream-shaped tubes for terahertz communications
Provisionally accepted- 1 Taiyuan Institute of Technology, Taiyuan, China
- 2 Shanghai University of Finance and Economics, Department of Physical Education, Shanghai University of Finance and Economics, Shanghai, China
A novel multi-nested anti-resonant fiber for reducing propagation losses in the terahertz band was proposed. The transmission properties of the fibers were analyzed using the finite element method. High-resistivity silicon was used as the fiber material, and the confinement loss of the fiber was reduced by employing eight circumferentially symmetric multi-nested ice-cream-shaped tubes. By optimizing the structural parameters of cladding tubes, the transmission loss of the fiber was effectively reduced. Simulation results show that the total loss of the designed fiber was 1.53 × 10 -4 dB/m. The low loss transmission bandwidth (less than 10 -3 dB/m) was 0.26 THz in the 0.6-1.4 THz range. The proposed fiber offered a new possibility for low-loss communication in the terahertz band, demonstrating huge commercial potential.
Keywords: Anti-resonant fiber, Terahertz, Multi-nested anti-resonant fiber, High-resistivity silicon (HRS), loss
Received: 14 Jan 2025; Accepted: 31 Mar 2025.
Copyright: © 2025 Xu, Chen and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Xinxiu Xu, Taiyuan Institute of Technology, Taiyuan, China
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