Reflection-based phase-shifted long period fiber grating for simultaneous measurement of temperature and refractive index
作者: Jie HuangXinwei LanAmardeep KaurHanzheng WangLei YuanHai Xiao
作者单位: 1Missouri University of Science and Technology
刊名: Optical Engineering, 2013, Vol.52 (1), pp.014404-014404
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.52.1.014404
关键词: phase-shifted long period fiber gratingsimultaneous measurementtemperaturerefractive index
原始语种摘要: We report a reflection-based phase-shifted long period fiber grating (PS-LPFG) and demonstrate its capability for simultaneous measurement of temperature and external reflective index (RI). The sensor device comprises a grating directly written by CO 2 laser and silver-coated end face. A π -shifted LPFG is presented with two attenuation bands through its reflection spectrum. These two bands have different sensitivity towards temperature and external RI that can be used for simultaneous measurement of the two variables. The experimental results show that this probe-type PS-LPFG performs well in terms of linearity and sensitivity.
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关键词翻译
关键词翻译
  • grating 筛分
  • refractive 折射率
  • simultaneous 同时的
  • shifted 移位
  • period 
  • temperature 温度
  • fiber 纤维
  • measurement 测量
  • index 指标
  • capability 能力