Highly sensitive curvature sensor based on asymmetrical twin core fiber and multimode fiber
作者: Yue WuLi PeiWenxing JinYouchao JiangYuguang YangYa ShenShuisheng Jian
作者单位: 1Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China
2Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China
刊名: Optics and Laser Technology, 2017, Vol.92 , pp.74-79
来源数据库: Elsevier Journal
DOI: 10.1016/j.optlastec.2017.01.007
关键词: Twin core fiberMultimode fiberCurvatureStrain
原始语种摘要: Abstract(#br)A highly sensitive curvature sensor based on asymmetrical twin core fiber (TCF) and multimode fiber (MMF) is proposed and experimentally demonstrated. By applying the coupled-mode theory and equivalent refractive index model, we theoretically analyze the uncoupled feature of the TCF and the relationship between peak wavelength and the curvature. Two segments of MMF used as beam splitter and combiner are embedded on the two ends of the TCF, and the extinction ratio of the comb transmission spectrum is about 15dB. The experimental result shows that the curvature sensitivity of the sensor can be achieved as high as 103.35nm/m −1 ranging from 0.24m −1 to 0.6m −1 , and the strain sensitivity is up to...
全文获取路径: Elsevier  (合作)
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来源刊物:
影响因子:1.365 (2012)

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关键词翻译
关键词翻译
  • curvature 曲率
  • sensor 感受器
  • asymmetrical 不对称的
  • multimode 多波型
  • core 岩心
  • fiber 纤维
  • sensitive 灵敏的
  • simultaneous 同时的
  • sensitivity 灵敏度
  • feature 结构元件