Microcavity strain sensor for high temperature applications
作者: Amardeep KaurSteve E. WatkinsJie HuangLei YuanHai Xiao
作者单位: 1Missouri University of Science and Technology
2Beijing Institute of Technology
刊名: Optical Engineering, 2014, Vol.53 (1), pp.017105-017105
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.53.1.017105
关键词: optical fiber sensorextrinsic Fabry–Perot interferometricfemtosecond-lasermicromachiningtemperaturestrain analysis
原始语种摘要: A microcavity extrinsic Fabry–Perot interferometric (EFPI) fiber-optic sensor is presented for measurement of strain. The EFPI sensor is fabricated by micromachining a cavity on the tip of a standard single-mode fiber with a femtosecond (fs) laser and is then self-enclosed by fusion splicing another piece of single-mode fiber. The fs-laser-based fabrication makes the sensor thermally stable to sustain temperatures as high as 800°C. The sensor exhibits linear performance for a range up to 3700 μ ε and a low temperature sensitivity of only 0.59 pm / ° C through 800°C.
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  • sensor 感受器
  • temperature 温度
  • strain 应变
  • fiber 纤维
  • extrinsic 非本征
  • sensitivity 灵敏度
  • fabricated 制造
  • single 单独的
  • cavity 
  • applications 应用程序