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首页> 外文期刊>Optical fiber technology >Simultaneous measurement of magnetic field and temperature based on NCF cascaded with ECSF in fiber loop mirror
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Simultaneous measurement of magnetic field and temperature based on NCF cascaded with ECSF in fiber loop mirror

机译：基于NCF和ECSF的光纤环形镜同时测量磁场和温度。

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摘要

In this paper, we propose and experimentally demonstrate a dual-parameter sensor based on no-core fiber (NCF) cascaded with elliptical-core spun fiber (ECSF) in a Sagnac loop. Both NCF and ECSF are sealed in a capillary with the magnetic fluid to detect the magnetic field and temperature simultaneously. By introducing a section of NCF inside an elliptical-core spun fiber loop mirror (E-FLM) with optimizing fiber length, two extinct dips can be observed from 1480 to 1680 nm in the transmission spectrum. One dip is the result of multimode interference (MMI), while the other is induced by Sagnac interference of E-FLM. Hence, the simultaneous measurement of magnetic field and temperature can be realized by monitoring the shift of different wavelengths of two dips. Experimental results show that the dip of MMI is sensitive to the magnetic field (713.07 pm/mT), while the EFLM has almost no response to magnetic field. For the two dips monitored in the temperature measurement, the sensitivities of proposed sensor are-34.8 pm/degrees C and 304.55 pm/degrees C, respectively.
机译：在本文中，我们提出并通过实验证明了一种基于无芯光纤（NCF）与椭圆芯旋转光纤（ECSF）级联的Sagnac环路中的双参数传感器。 NCF和ECSF都用磁性流体密封在毛细管中，以同时检测磁场和温度。通过在具有最佳光纤长度的椭圆芯旋转光纤环形镜（E-FLM）的内部引入NCF的一部分，可以在透射光谱中观察到从1480 nm到1680 nm的两个消光倾角。一个下降是多模干扰（MMI）的结果，而另一个是E-FLM的Sagnac干扰引起的。因此，可以通过监视两个倾角的不同波长的偏移来实现磁场和温度的同时测量。实验结果表明，MMI的倾角对磁场（713.07 pm / mT）敏感，而EFLM对磁场几乎没有响应。对于在温度测量中监测到的两次下降，建议的传感器的灵敏度分别为34.8 pm /℃和304.55 pm /℃。

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  • 来源
    《Optical fiber technology》 |2019年第3期|45-49|共5页
  • 作者

    Sun Chunran; Wang Muguang; Dong Yue; Ye Shen; Jian Shuisheng;

  • 作者单位

    Beijing Jiaotong Univ, Inst Lightwave Technol, Key Lab All Opt Network & Adv Telecommun Network, Minist Educ, Beijing 100044, Peoples R China;

    Beijing Jiaotong Univ, Inst Lightwave Technol, Key Lab All Opt Network & Adv Telecommun Network, Minist Educ, Beijing 100044, Peoples R China;

    Beijing Jiaotong Univ, Inst Lightwave Technol, Key Lab All Opt Network & Adv Telecommun Network, Minist Educ, Beijing 100044, Peoples R China;

    Beijing Jiaotong Univ, Inst Lightwave Technol, Key Lab All Opt Network & Adv Telecommun Network, Minist Educ, Beijing 100044, Peoples R China;

    Beijing Jiaotong Univ, Inst Lightwave Technol, Key Lab All Opt Network & Adv Telecommun Network, Minist Educ, Beijing 100044, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Magnetic field measurement; Temperature measurement; Multimode interference; Fiber loop mirror;

    机译：磁场测量;温度测量;多模干扰;光纤环镜;

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