Design and optimization of dispersion-flattened microarray-core fiber with ultralow loss for terahertz transmission

Lei Zhang, Wanli Luo, Jing Bai, Haiping Bai, Peng Jiang, Qiang Xu, Kang Li, Nigel Copner, Yongkang Gong

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Abstract

The paper establishes a late-model of microarray-core based polymer optical fiber with flattened dispersion and ultra-low losses. Its transmission properties are calculated by virtue of the beam propagation approach. From the simulation results, it finds that the modelled fiber has a near-zero dispersion property of 0.29 ± 0.16 ps/THz/cm in a frequency area of 1.05 THz to 1.78 THz, a high birefringence of 1.6 × 10-3, an ultra-low confinement loss of 3.78 × 10-10 dB/m, an effective mode field zone of 4.6 × 105 μm2, and a nonlinear coefficient of 1.2 km-1·W−1. With these good properties, the modelled fiber could be applied for ethanol detection and polarization maintaining THz applications.
Original languageEnglish
Pages (from-to)9061-9068
Number of pages8
JournalAlexandria Engineering Journal
Volume61
Issue number11
Early online date28 Feb 2022
DOIs
Publication statusE-pub ahead of print - 28 Feb 2022

Keywords

  • Beam propagation method (BPM)
  • Polymer optical fiber
  • Terahertz transmission
  • Dispersion

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