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Numerical study of highly birefringent multi-core photonic crystal fiber sensor based on surface plasmon resonance



  1. School of Mechanical and Electrical Engineering, Wuyi University, Wuyishan 354300, China
  2. College of Physics and Electronic Information, Gannan Normal University, Ganzhou 341000, China
  3. School of Mechanical Engineering and Electronic Information, China University of Geosciences (Wuhan), 430074, Wuhan, China


Based on the surface plasmon resonance effect, a new type of near-infrared multi-core photonic crystal fiber sensor with one analyte channel is proposed. The proposed sensor can effectively eliminate the interference between neighboring analyte channels and improve its signal-to-noise ratio thanks to its single analyte channel structure. The sensing performance is theoretically studied through using the full-vector finite method. Numerical results indicate that, the thickness of the indium tin oxide film has a large influence on the resonance wavelength and the peak of loss while the effect of elliptical air hole size on the property of the proposed sensor is so small. Furthermore, the wavelength sensitivity is 4,400 nm/refractive index unit and the resolution is up to 2.27×10-6. Benefitting from its excellent sensing performance, the proposed sensor can be applied in environmental, food safety and (bio)chemical detection..


Photonic crystal fiber, Surface plasmon resonance, Sensor, Birefringence.

Submitted at: Sept. 8, 2020
Accepted at: Oct. 7, 2021


JIAN-FEI LIAO, ZI-PING DING, TIAN-YE HUANG, YING-MAO XIE, ZE-KAI ZENG, RUI-QI ZENG, Numerical study of highly birefringent multi-core photonic crystal fiber sensor based on surface plasmon resonance, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 9-10, pp. 409-415 (2021)