Terahertz Sensor via Ultralow-Loss Dispersion-Flattened Polymer Optical Fiber: Design and Analysis

Wanli Luo, Peng Jiang, Qiang Xu, Lei Cao, Adam Jones, Kang Li, Nigel Copner, Yongkang Gong

Research output: Contribution to journalArticlepeer-review

65 Downloads (Pure)

Abstract

A novel cyclic olefin copolymer (COC)-based polymer optical fiber (POF) with a rectangular porous core is designed for terahertz (THz) sensing by the finite element method. The numerical simulations showed an ultrahigh relative sensitivity of 89.73% of the x-polarization mode at a frequency of 1.2 THz and under optimum design conditions. In addition to this, they showed an ultralow confinement loss of 2.18 × 10−12 cm−1, a high birefringence of 1.91 × 10−3, a numerical aperture of 0.33, and an effective mode area of 1.65 × 105 μm2 was obtained for optimum design conditions. Moreover, the range dispersion variation was within 0.7 ± 0.41 ps/THz/cm, with the frequency range of 1.0–1.4 THz. Compared with the traditional sensor, the late-model sensor will have application value in THz sensing and communication.
Original languageEnglish
Article number4921
Number of pages16
JournalMaterials
Volume14
Issue number17
DOIs
Publication statusPublished - 29 Aug 2021

Keywords

  • polymer optical fiber
  • fiber optics sensors
  • terahertz wave
  • finite element method

Fingerprint

Dive into the research topics of 'Terahertz Sensor via Ultralow-Loss Dispersion-Flattened Polymer Optical Fiber: Design and Analysis'. Together they form a unique fingerprint.

Cite this