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Proceedings Paper

Investigation of single-mode anti-resonant hollow-core THz fibers
Author(s): Shuai Sun; Wei Shi; Quan Sheng; Guo Zhang; Yao Zhang; Zhongbao Yan; Jianquan Yao
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Paper Abstract

Single-mode fiber plays an important role in the applications of THz technology. Serving as one of the optimal choices of THz fiber, hollow-core anti-resonant fiber (ARF) with single-layer anti-resonant elements has advantages of low transmission loss, high damage threshold, low dispersion but disadvantage of single mode which can by realized by the high-order-mode (HOM) suppression effect. In this paper, the key factor affecting the HOM suppression effect in THz ARF is investigated and confirmed to be the cross-sectional area ratio of cladding tubes inner side with fiber core, besides, the ratio will slightly change with the variation of the anti-resonant period of THz ARF where the cladding tubes have different shell thickness. By optimizing the anti-resonant elements of THz ARF from round tubes to semielliptical tubes, a high-performance single-mode THz fiber is proposed and the confinement loss of high-order-mode is confirmed larger than 24 dB/m at the same time that of fundamental-mode is controlled less than 0.4 dB/m.

Paper Details

Date Published: 2 March 2020
PDF: 6 pages
Proc. SPIE 11279, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII, 112791Y (2 March 2020); doi: 10.1117/12.2544049
Show Author Affiliations
Shuai Sun, Tianjin Univ. (China)
Wei Shi, Tianjin Univ. (China)
Quan Sheng, Tianjin Univ. (China)
Guo Zhang, Tianjin Univ. (China)
Yao Zhang, Tianjin Univ. (China)
Zhongbao Yan, Tianjin Univ. (China)
Jianquan Yao, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 11279:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII
Laurence P. Sadwick; Tianxin Yang, Editor(s)

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