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<p>This paper proposes a short-period Bragg fiber grating integrated into hollow core of photonic crystal fiber (HC-PCF-FBG) through a finite element approach. A distinctive feature of this design is the exposure of the outer surfaces and perforations of the PCF to environmental fluctuations, allowing for potential modifications. Consequently, this configuration of FBG shows high sensitivity to both external and internal variations. The integration of PCF and FBG results in outstanding performance, making it the focal point of many investigations. In addition, HC-PCF-FBG can be employed as a laboratory platform for a wide range of sensing applications, making it useful in the configuration of sensors. The temperature applied for evaluating the performance of HC-FBG, and the sensitivity was determined to be approximately 7.5 pM/°C. The intriguing aspect of this device lies in its ability to enhance sensitivity through the application of sensitive materials to the proposed device’s surface. Furthermore, the insertion of a highly sensitive material into the holes promises to improve the sensor’s sensitivity.</p>

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Short-period microstructure bragg fiber In hollow photonic crystal fiberFor sensing applications

  • 期刊论文

  • 发表日期：

    2025年4月27日

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  • Dheyaa A. Resen,
  • Haider Albonda

摘要

This paper proposes a short-period Bragg fiber grating integrated into hollow core of photonic crystal fiber (HC-PCF-FBG) through a finite element approach. A distinctive feature of this design is the exposure of the outer surfaces and perforations of the PCF to environmental fluctuations, allowing for potential modifications. Consequently, this configuration of FBG shows high sensitivity to both external and internal variations. The integration of PCF and FBG results in outstanding performance, making it the focal point of many investigations. In addition, HC-PCF-FBG can be employed as a laboratory platform for a wide range of sensing applications, making it useful in the configuration of sensors. The temperature applied for evaluating the performance of HC-FBG, and the sensitivity was determined to be approximately 7.5 pM/°C. The intriguing aspect of this device lies in its ability to enhance sensitivity through the application of sensitive materials to the proposed device’s surface. Furthermore, the insertion of a highly sensitive material into the holes promises to improve the sensor’s sensitivity.