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首页> 外文期刊>IEEE sensors journal >All-Fiber Fabry-Perot Interferometer Gas Refractive Index Sensor Based on Hole-Assisted One-Core Fiber and Vernier Effect
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All-Fiber Fabry-Perot Interferometer Gas Refractive Index Sensor Based on Hole-Assisted One-Core Fiber and Vernier Effect

机译:全纤维法布里 - 珀罗干涉仪气体折射率传感器基于孔辅助单芯光纤和vernier效应

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摘要

A novel high sensitivity all-fiber Fabry-Perot interferometer (FPI) gas refractive index (RI) sensor based on hole-assisted one-core fiber (HAOCF) and Vernier effect was proposed and demonstrated. The sensor is fabricated by splicing a section of HAOCF to a section of silica tube (ST) fused with the lead-in single-mode fiber (SMF), ensuring that the sensor is composed of an air-cavity FPI and a silica-cavity FPI. The cascaded dual-cavities generate the Vernier effect due to a similar free spectrum range (FSR), which significantly improve the sensitivity of the sensor. Owing to the air hole in the cladding of the HAOCF, gases with different RI can enter or leave the in-fiber air cavity, which makes the device usable as a gas I sensor. The sensor was used to monitor the RI changes of air with different pressures and provided a high sensitivity of -9462.4 nm/RIU. The proposed sensor has a potential to find further applications in the fields of gas composition detection, medical diagnostics and environmental monitoring.
机译:提出了一种基于空穴辅助单芯纤维(HAOCF)和vernier效果的新型高灵敏度全纤维Fabry-Perot干涉仪(FPI)气体折射率(RI)传感器和vernier效果。通过将HAOCF部分剪切到与引线单模光纤(SMF)熔化的二氧化硅管(ST)部分来制造传感器,确保传感器由气腔FPI和二氧化硅腔组成FPI。级联的双腔由于类似的自由频谱范围(FSR)而产生的vernier效果,这显着提高了传感器的灵敏度。由于气孔在寄生覆盖物中,具有不同RI的气体可以进入或离开纤维空腔,这使得可用作气体I传感器的装置。该传感器用于监测具有不同压力的空气的RI变化,并提供高灵敏度-9462.4nm / Riu。所提出的传感器有可能在气体组成检测,医学诊断和环境监测领域找到进一步的应用。

著录项

  • 来源
    《IEEE sensors journal》 |2021年第14期|15417-15424|共8页
  • 作者单位

    Harbin Univ Sci & Technol Heilongjiang Prov Key Lab Laser Spect Technol & A Harbin 150080 Peoples R China|Harbin Univ Sci & Technol Sch Measurement & Commun Engn Harbin 150080 Peoples R China;

    Harbin Univ Sci & Technol Heilongjiang Prov Key Lab Laser Spect Technol & A Harbin 150080 Peoples R China|Harbin Univ Sci & Technol Sch Measurement & Commun Engn Harbin 150080 Peoples R China;

    Harbin Univ Sci & Technol Heilongjiang Prov Key Lab Laser Spect Technol & A Harbin 150080 Peoples R China|Harbin Univ Sci & Technol Sch Measurement & Commun Engn Harbin 150080 Peoples R China;

    Harbin Univ Sci & Technol Heilongjiang Prov Key Lab Laser Spect Technol & A Harbin 150080 Peoples R China|Harbin Univ Sci & Technol Sch Measurement & Commun Engn Harbin 150080 Peoples R China|Guangdong Ocean Univ Sch Elect & Informat Engn Zhanjiang 524088 Peoples R China;

    Harbin Univ Sci & Technol Heilongjiang Prov Key Lab Laser Spect Technol & A Harbin 150080 Peoples R China|Harbin Univ Sci & Technol Sch Measurement & Commun Engn Harbin 150080 Peoples R China;

    Harbin Univ Sci & Technol Heilongjiang Prov Key Lab Laser Spect Technol & A Harbin 150080 Peoples R China|Harbin Univ Sci & Technol Sch Measurement & Commun Engn Harbin 150080 Peoples R China;

    Harbin Univ Sci & Technol Heilongjiang Prov Key Lab Laser Spect Technol & A Harbin 150080 Peoples R China|Harbin Univ Sci & Technol Sch Measurement & Commun Engn Harbin 150080 Peoples R China;

    Harbin Univ Sci & Technol Dept Phys Sch Sci Harbin 150080 Peoples R China;

    Jilin Univ Coll Construct Engn Changchun 130021 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fabry-Perot interferometer; HAOCF; Vernier effect; gas refractive index;

    机译:Fabry-Perot干涉仪;Haocf;Vernier效果;气体折射率;

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