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首页> 外文期刊>Optics Letters >In-fiber refractive index sensor based on single eccentric hole-assisted dual-core fiber
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In-fiber refractive index sensor based on single eccentric hole-assisted dual-core fiber

机译：基于单偏心孔辅助双芯光纤的纤维折射率传感器

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摘要

We propose a novel and simple in-fiber refractive index sensor based on resonant coupling, constructed by a short section of single eccentric hole-assisted dual-core fiber (SEHADCF) spliced between two single-mode fibers. The coupling characteristics of the SEHADCF are calculated numerically. The strong resonant coupling occurs when the fundamental mode of the center core phase-matches to that of the suspended core in the air hole. The effective refractive index of the fundamental mode of the suspended core can be obviously changed by injecting solution into the air hole. The responses of the proposed devices to the refractive index and temperature are experimentally measured. The refractive index sensitivity is 627.5 nm/refractive index unit in the refractive index range of 1.335-1.385. The sensor without solution filling is insensitive to temperature in the range of 30-90 degrees C. The proposed refractive index sensor has outstanding advantages, such as simple fabrication, good mechanical strength, and excellent microfluidic channel, and will be of importance in biological detection, chemical analysis, and environment monitoring. (C) 2017 Optical Society of America
机译：我们提出了一种基于谐振耦合的新颖和简单的纤维折射率传感器，由两个单模纤维之间的单偏心孔辅助双芯纤维（SEHADCF）的短部分构成。在数值上计算SEHADCF的耦合特性。当中心核心相位与空气孔中的悬浮芯相匹配的基本模式时，发生强的共振耦合。通过将溶液注入气孔，可以显然改变悬浮芯的基本模式的有效折射率。实验测量所提出的装置对折射率和温度的响应。折射率灵敏度为627.5nm /折射率单元，折射率范围为1.335-1.385。没有溶液填充的传感器对30-90摄氏度的温度不敏感。所提出的折射率传感器具有出色的优点，例如简单的制造，良好的机械强度和优异的微流体通道，并且对生物检测具有重要性，化学分析和环境监测。 （c）2017年光学学会

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  • 来源
    《Optics Letters》 |2017年第21期|共4页
  • 作者

    Yang Jing; Guan Chunying; Tian Peixuan; Yuan Tingting; Zhu Zheng; Li Ping; Shi Jinhui; Yang Jun; Yuan Libo;

  • 作者单位

    Harbin Engn Univ Coll Sci Minist Educ Key Lab Infiber Integrated Opt Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Coll Sci Minist Educ Key Lab Infiber Integrated Opt Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Coll Sci Minist Educ Key Lab Infiber Integrated Opt Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Coll Sci Minist Educ Key Lab Infiber Integrated Opt Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Coll Sci Minist Educ Key Lab Infiber Integrated Opt Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Coll Sci Minist Educ Key Lab Infiber Integrated Opt Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Coll Sci Minist Educ Key Lab Infiber Integrated Opt Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Coll Sci Minist Educ Key Lab Infiber Integrated Opt Harbin 150001 Heilongjiang Peoples R China;

    Harbin Engn Univ Coll Sci Minist Educ Key Lab Infiber Integrated Opt Harbin 150001 Heilongjiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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